@cryptotaxi247 / netdata-1 / commits / 8a102a42c

improvement(go.d/mysql): Measure redo log occupancy (#21153)

Co-authored-by: Ilya Mashchenko <ilya@netdata.cloud> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Petr Vaněk committed Oct 24, 2025 at 16:13 UTC 8a102a42ca492b4f6e84801b06622a117461e704

17 files changed +953 -100

src/go/plugin/go.d/collector/mysql/charts.go

+39

@@ -101,7 +101,10 @@ var baseCharts = module.Charts{

101 chartInnoDBIO.Copy(),

102 chartInnoDBIOOperations.Copy(),

103 chartInnoDBPendingIOOperations.Copy(),

104 + chartInnoDBLogActivity.Copy(),

105 + chartInnoDBLogOccupancy.Copy(),

106 chartInnoDBLogOperations.Copy(),

107 + chartInnoDBCheckpointAge.Copy(),

108 chartInnoDBCurrentRowLocks.Copy(),

109 chartInnoDBRowsOperations.Copy(),

110 chartInnoDBBufferPoolPages.Copy(),

@@ -351,6 +354,19 @@ var (

354 {ID: "innodb_data_pending_fsyncs", Name: "fsyncs"},

355 },

356 }

357 + chartInnoDBLogActivity = module.Chart{

358 + ID: "innodb_redo_log_activity",

359 + Title: "InnoDB Redo Log Activity",

360 + Units: "B/s",

361 + Fam: "innodb",

362 + Ctx: "mysql.innodb_redo_log_activity",

363 + Type: module.Line,

364 + Priority: prioInnoDBLog,

365 + Dims: module.Dims{

366 + {ID: "innodb_log_sequence_number", Name: "redo_written", Algo: module.Incremental},

367 + {ID: "innodb_last_checkpoint_at", Name: "checkpointed", Algo: module.Incremental},

368 + },

369 + }

370 chartInnoDBLogOperations = module.Chart{

371 ID: "innodb_log",

372 Title: "InnoDB Log Operations",

@@ -364,6 +380,29 @@ var (

380 {ID: "innodb_log_writes", Name: "writes", Algo: module.Incremental, Mul: -1},

381 },

382 }

383 + chartInnoDBLogOccupancy = module.Chart{

384 + ID: "innodb_redo_log_occupancy",

385 + Title: "InnoDB Redo Log Occupancy",

386 + Units: "percentage",

387 + Fam: "innodb",

388 + Ctx: "mysql.innodb_redo_log_occupancy",

389 + Type: module.Area,

390 + Priority: prioInnoDBLog,

391 + Dims: module.Dims{

392 + {ID: "innodb_log_occupancy", Name: "occupancy", Algo: module.Absolute, Div: 1000},

393 + },

394 + }

395 + chartInnoDBCheckpointAge = module.Chart{

396 + ID: "innodb_redo_log_checkpoint_age",

397 + Title: "InnoDB Redo Log Checkpoint Age",

398 + Units: "B",

399 + Fam: "innodb",

400 + Ctx: "mysql.innodb_redo_log_checkpoint_age",

401 + Priority: prioInnoDBLog,

402 + Dims: module.Dims{

403 + {ID: "innodb_checkpoint_age", Name: "age", Algo: module.Absolute},

404 + },

405 + }

406 chartInnoDBCurrentRowLocks = module.Chart{

407 ID: "innodb_cur_row_lock",

408 Title: "InnoDB Current Row Locks",

src/go/plugin/go.d/collector/mysql/collect.go

+13

@@ -36,6 +36,10 @@ func (c *Collector) collect() (map[string]int64, error) {

36 return nil, fmt.Errorf("error on collecting global status: %v", err)

37 }

39 + if err := c.collectEngineInnoDBStatus(mx); err != nil {

40 + return nil, fmt.Errorf("error on collecting engine innodb status: %v", err)

41 + }

42 +

43 if hasInnodbOSLog(mx) {

44 c.addInnoDBOSLogOnce.Do(c.addInnoDBOSLogCharts)

45 } else if hasInnodbOSLogIO(mx) {

@@ -63,6 +67,15 @@ func (c *Collector) collect() (map[string]int64, error) {

67 }

68 c.recheckGlobalVarsTime = now

69 }

70 + mx["innodb_log_file_size"] = c.varInnoDBLogFileSize

71 + mx["innodb_log_files_in_group"] = c.varInnoDBLogFilesInGroup

72 + mx["innodb_log_group_capacity"] = c.varInnoDBLogFileSize * c.varInnoDBLogFilesInGroup

73 + // https://mariadb.com/docs/server/server-usage/storage-engines/innodb/innodb-redo-log#determining-the-redo-log-occupancy

74 + if mx["innodb_log_group_capacity"] > 0 {

75 + mx["innodb_log_occupancy"] = 100 * 1000 * mx["innodb_checkpoint_age"] / mx["innodb_log_group_capacity"]

76 + } else {

77 + mx["innodb_log_occupancy"] = 0

78 + }

79 mx["max_connections"] = c.varMaxConns

80 mx["table_open_cache"] = c.varTableOpenCache

src/go/plugin/go.d/collector/mysql/collect_engine_innodb_status.go new

+38

@@ -0,0 +1,38 @@

1 +// SPDX-License-Identifier: GPL-3.0-or-later

2 +

3 +package mysql

4 +

5 +import (

6 + "bufio"

7 + "strings"

8 +)

9 +

10 +const queryShowEngineInnoDBStatus = "SHOW ENGINE INNODB STATUS;"

11 +

12 +// collect Checkpoint Age in InnoDB with respect to

13 +// https://mariadb.com/kb/en/innodb-redo-log/#determining-the-checkpoint-age

14 +func (c *Collector) collectEngineInnoDBStatus(mx map[string]int64) error {

15 + q := queryShowEngineInnoDBStatus

16 + c.Debugf("executing query: '%s'", q)

17 +

18 + _, err := c.collectQuery(q, func(column, value string, _ bool) {

19 + switch column {

20 + case "Status":

21 + scanner := bufio.NewScanner(strings.NewReader(value))

22 +

23 + for scanner.Scan() {

24 + line := scanner.Text()

25 + switch {

26 + case strings.HasPrefix(line, "Log sequence number"):

27 + value := strings.TrimSpace(strings.TrimPrefix(line, "Log sequence number"))

28 + mx["innodb_log_sequence_number"] = parseInt(value)

29 + case strings.HasPrefix(line, "Last checkpoint at"):

30 + value := strings.TrimSpace(strings.TrimPrefix(line, "Last checkpoint at"))

31 + mx["innodb_last_checkpoint_at"] = parseInt(value)

32 + }

33 + }

34 + }

35 + })

36 + mx["innodb_checkpoint_age"] = mx["innodb_log_sequence_number"] - mx["innodb_last_checkpoint_at"]

37 + return err

38 +}

src/go/plugin/go.d/collector/mysql/collect_global_vars.go

@@ -10,6 +10,8 @@ WHERE

10 OR Variable_name LIKE 'table_open_cache'

11 OR Variable_name LIKE 'disabled_storage_engines'

12 OR Variable_name LIKE 'log_bin'

13 + OR Variable_name LIKE 'innodb_log_file_size'

14 + OR Variable_name LIKE 'innodb_log_files_in_group'

15 OR Variable_name LIKE 'performance_schema';`

16 )

@@ -28,6 +30,10 @@ func (c *Collector) collectGlobalVariables() error {

30 switch name {

31 case "disabled_storage_engines":

32 c.varDisabledStorageEngine = value

33 + case "innodb_log_file_size":

34 + c.varInnoDBLogFileSize = parseInt(value)

35 + case "innodb_log_files_in_group":

36 + c.varInnoDBLogFilesInGroup = parseInt(value)

37 case "log_bin":

38 c.varLogBin = value

39 case "max_connections":

src/go/plugin/go.d/collector/mysql/collector.go

@@ -52,6 +52,11 @@ func New() *Collector {

52 collectedUsers: make(map[string]bool),

54 recheckGlobalVarsEvery: time.Minute * 10,

55 +

56 + // innodb_log_files_in_group is available in mysql and <mariadb-10.6,

57 + // otherwise it defaults to 1.

58 + // see https://mariadb.com/kb/en/innodb-system-variables/#innodb_log_files_in_group

59 + varInnoDBLogFilesInGroup: 1,

60 }

61 }

@@ -93,6 +98,8 @@ type Collector struct {

99 recheckGlobalVarsTime time.Time

100 recheckGlobalVarsEvery time.Duration

101 + varInnoDBLogFileSize int64

102 + varInnoDBLogFilesInGroup int64

103 varMaxConns int64

104 varTableOpenCache int64

105 varDisabledStorageEngine string

src/go/plugin/go.d/collector/mysql/collector_test.go

+250 -59

@@ -32,17 +32,20 @@ var (

32 dataMySQLVer8030GlobalVariables, _ = os.ReadFile("testdata/mysql/v8.0.30/global_variables.txt")

33 dataMySQLVer8030ReplicaStatusMultiSource, _ = os.ReadFile("testdata/mysql/v8.0.30/replica_status_multi_source.txt")

34 dataMySQLVer8030ProcessList, _ = os.ReadFile("testdata/mysql/v8.0.30/process_list.txt")

35 + dataMySQLVer8030EngineInnoDBStatus, _ = os.ReadFile("testdata/mysql/v8.0.30/engine_innodb_status.txt")

36 - dataPerconaVer8029Version, _ = os.ReadFile("testdata/percona/v8.0.29/version.txt")

37 - dataPerconaVer8029GlobalStatus, _ = os.ReadFile("testdata/percona/v8.0.29/global_status.txt")

38 - dataPerconaVer8029GlobalVariables, _ = os.ReadFile("testdata/percona/v8.0.29/global_variables.txt")

39 - dataPerconaVer8029UserStatistics, _ = os.ReadFile("testdata/percona/v8.0.29/user_statistics.txt")

40 - dataPerconaV8029ProcessList, _ = os.ReadFile("testdata/percona/v8.0.29/process_list.txt")

37 + dataPerconaVer8029Version, _ = os.ReadFile("testdata/percona/v8.0.29/version.txt")

38 + dataPerconaVer8029GlobalStatus, _ = os.ReadFile("testdata/percona/v8.0.29/global_status.txt")

39 + dataPerconaVer8029GlobalVariables, _ = os.ReadFile("testdata/percona/v8.0.29/global_variables.txt")

40 + dataPerconaVer8029UserStatistics, _ = os.ReadFile("testdata/percona/v8.0.29/user_statistics.txt")

41 + dataPerconaVer8029ProcessList, _ = os.ReadFile("testdata/percona/v8.0.29/process_list.txt")

42 + dataPerconaVer8029EngineInnoDBStatus, _ = os.ReadFile("testdata/percona/v8.0.29/engine_innodb_status.txt")

42 - dataMariaVer5564Version, _ = os.ReadFile("testdata/mariadb/v5.5.64/version.txt")

43 - dataMariaVer5564GlobalStatus, _ = os.ReadFile("testdata/mariadb/v5.5.64/global_status.txt")

44 - dataMariaVer5564GlobalVariables, _ = os.ReadFile("testdata/mariadb/v5.5.64/global_variables.txt")

45 - dataMariaVer5564ProcessList, _ = os.ReadFile("testdata/mariadb/v5.5.64/process_list.txt")

44 + dataMariaVer5564Version, _ = os.ReadFile("testdata/mariadb/v5.5.64/version.txt")

45 + dataMariaVer5564GlobalStatus, _ = os.ReadFile("testdata/mariadb/v5.5.64/global_status.txt")

46 + dataMariaVer5564GlobalVariables, _ = os.ReadFile("testdata/mariadb/v5.5.64/global_variables.txt")

47 + dataMariaVer5564ProcessList, _ = os.ReadFile("testdata/mariadb/v5.5.64/process_list.txt")

48 + dataMariaVer5564EngineInnoDBStatus, _ = os.ReadFile("testdata/mariadb/v5.5.64/engine_innodb_status.txt")

50 dataMariaVer1084Version, _ = os.ReadFile("testdata/mariadb/v10.8.4/version.txt")

51 dataMariaVer1084GlobalStatus, _ = os.ReadFile("testdata/mariadb/v10.8.4/global_status.txt")

@@ -51,12 +54,14 @@ var (

54 dataMariaVer1084AllSlavesStatusMultiSource, _ = os.ReadFile("testdata/mariadb/v10.8.4/all_slaves_status_multi_source.txt")

55 dataMariaVer1084UserStatistics, _ = os.ReadFile("testdata/mariadb/v10.8.4/user_statistics.txt")

56 dataMariaVer1084ProcessList, _ = os.ReadFile("testdata/mariadb/v10.8.4/process_list.txt")

57 + dataMariaVer1084EngineInnoDBStatus, _ = os.ReadFile("testdata/mariadb/v10.8.4/engine_innodb_status.txt")

55 - dataMariaGaleraClusterVer1084Version, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/version.txt")

56 - dataMariaGaleraClusterVer1084GlobalStatus, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/global_status.txt")

57 - dataMariaGaleraClusterVer1084GlobalVariables, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/global_variables.txt")

58 - dataMariaGaleraClusterVer1084UserStatistics, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/user_statistics.txt")

59 - dataMariaGaleraClusterVer1084ProcessList, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/process_list.txt")

59 + dataMariaGaleraClusterVer1084Version, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/version.txt")

60 + dataMariaGaleraClusterVer1084GlobalStatus, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/global_status.txt")

61 + dataMariaGaleraClusterVer1084GlobalVariables, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/global_variables.txt")

62 + dataMariaGaleraClusterVer1084UserStatistics, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/user_statistics.txt")

63 + dataMariaGaleraClusterVer1084ProcessList, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/process_list.txt")

64 + dataMariaGaleraClusterVer1084EngineInnoDBStatus, _ = os.ReadFile("testdata/mariadb/v10.8.4-galera-cluster/engine_innodb_status.txt")

66 dataMariaVer1145Version, _ = os.ReadFile("testdata/mariadb/v11.4.5/version.txt")

67 dataMariaVer1145UserStatistics, _ = os.ReadFile("testdata/mariadb/v11.4.5/user_statistics.txt")

@@ -64,37 +69,42 @@ var (

70 func Test_testDataIsValid(t *testing.T) {

71 for name, data := range map[string][]byte{

67 - "dataConfigJSON": dataConfigJSON,

68 - "dataConfigYAML": dataConfigYAML,

69 - "dataSessionVariables": dataSessionVariables,

70 - "dataMySQLVer8030Version": dataMySQLVer8030Version,

71 - "dataMySQLVer8030GlobalStatus": dataMySQLVer8030GlobalStatus,

72 - "dataMySQLVer8030GlobalVariables": dataMySQLVer8030GlobalVariables,

73 - "dataMySQLVer8030ReplicaStatusMultiSource": dataMySQLVer8030ReplicaStatusMultiSource,

74 - "dataMySQLVer8030ProcessList": dataMySQLVer8030ProcessList,

75 - "dataPerconaVer8029Version": dataPerconaVer8029Version,

76 - "dataPerconaVer8029GlobalStatus": dataPerconaVer8029GlobalStatus,

77 - "dataPerconaVer8029GlobalVariables": dataPerconaVer8029GlobalVariables,

78 - "dataPerconaVer8029UserStatistics": dataPerconaVer8029UserStatistics,

79 - "dataPerconaV8029ProcessList": dataPerconaV8029ProcessList,

80 - "dataMariaVer5564Version": dataMariaVer5564Version,

81 - "dataMariaVer5564GlobalStatus": dataMariaVer5564GlobalStatus,

82 - "dataMariaVer5564GlobalVariables": dataMariaVer5564GlobalVariables,

83 - "dataMariaVer5564ProcessList": dataMariaVer5564ProcessList,

84 - "dataMariaVer1084Version": dataMariaVer1084Version,

85 - "dataMariaVer1084GlobalStatus": dataMariaVer1084GlobalStatus,

86 - "dataMariaVer1084GlobalVariables": dataMariaVer1084GlobalVariables,

87 - "dataMariaVer1084AllSlavesStatusSingleSource": dataMariaVer1084AllSlavesStatusSingleSource,

88 - "dataMariaVer1084AllSlavesStatusMultiSource": dataMariaVer1084AllSlavesStatusMultiSource,

89 - "dataMariaVer1084UserStatistics": dataMariaVer1084UserStatistics,

90 - "dataMariaVer1084ProcessList": dataMariaVer1084ProcessList,

91 - "dataMariaGaleraClusterVer1084Version": dataMariaGaleraClusterVer1084Version,

92 - "dataMariaGaleraClusterVer1084GlobalStatus": dataMariaGaleraClusterVer1084GlobalStatus,

93 - "dataMariaGaleraClusterVer1084GlobalVariables": dataMariaGaleraClusterVer1084GlobalVariables,

94 - "dataMariaGaleraClusterVer1084UserStatistics": dataMariaGaleraClusterVer1084UserStatistics,

95 - "dataMariaGaleraClusterVer1084ProcessList": dataMariaGaleraClusterVer1084ProcessList,

96 - "dataMariaVer1145Version": dataMariaVer1145Version,

97 - "dataMariaVer1145UserStatistics": dataMariaVer1145UserStatistics,

72 + "dataConfigJSON": dataConfigJSON,

73 + "dataConfigYAML": dataConfigYAML,

74 + "dataSessionVariables": dataSessionVariables,

75 + "dataMySQLVer8030Version": dataMySQLVer8030Version,

76 + "dataMySQLVer8030GlobalStatus": dataMySQLVer8030GlobalStatus,

77 + "dataMySQLVer8030GlobalVariables": dataMySQLVer8030GlobalVariables,

78 + "dataMySQLVer8030ReplicaStatusMultiSource": dataMySQLVer8030ReplicaStatusMultiSource,

79 + "dataMySQLVer8030ProcessList": dataMySQLVer8030ProcessList,

80 + "dataMySQLVer8030EngineInnoDBStatus": dataMySQLVer8030EngineInnoDBStatus,

81 + "dataPerconaVer8029Version": dataPerconaVer8029Version,

82 + "dataPerconaVer8029GlobalStatus": dataPerconaVer8029GlobalStatus,

83 + "dataPerconaVer8029GlobalVariables": dataPerconaVer8029GlobalVariables,

84 + "dataPerconaVer8029UserStatistics": dataPerconaVer8029UserStatistics,

85 + "dataPerconaVer8029ProcessList": dataPerconaVer8029ProcessList,

86 + "dataPerconaVer8029EngineInnoDBStatus": dataPerconaVer8029EngineInnoDBStatus,

87 + "dataMariaVer5564Version": dataMariaVer5564Version,

88 + "dataMariaVer5564GlobalStatus": dataMariaVer5564GlobalStatus,

89 + "dataMariaVer5564GlobalVariables": dataMariaVer5564GlobalVariables,

90 + "dataMariaVer5564ProcessList": dataMariaVer5564ProcessList,

91 + "dataMariaVer5564EngineInnoDBStatus": dataMariaVer5564EngineInnoDBStatus,

92 + "dataMariaVer1084Version": dataMariaVer1084Version,

93 + "dataMariaVer1084GlobalStatus": dataMariaVer1084GlobalStatus,

94 + "dataMariaVer1084GlobalVariables": dataMariaVer1084GlobalVariables,

95 + "dataMariaVer1084AllSlavesStatusSingleSource": dataMariaVer1084AllSlavesStatusSingleSource,

96 + "dataMariaVer1084AllSlavesStatusMultiSource": dataMariaVer1084AllSlavesStatusMultiSource,

97 + "dataMariaVer1084UserStatistics": dataMariaVer1084UserStatistics,

98 + "dataMariaVer1084ProcessList": dataMariaVer1084ProcessList,

99 + "dataMariaVer1084EngineInnoDBStatus": dataMariaVer1084EngineInnoDBStatus,

100 + "dataMariaGaleraClusterVer1084Version": dataMariaGaleraClusterVer1084Version,

101 + "dataMariaGaleraClusterVer1084GlobalStatus": dataMariaGaleraClusterVer1084GlobalStatus,

102 + "dataMariaGaleraClusterVer1084GlobalVariables": dataMariaGaleraClusterVer1084GlobalVariables,

103 + "dataMariaGaleraClusterVer1084UserStatistics": dataMariaGaleraClusterVer1084UserStatistics,

104 + "dataMariaGaleraClusterVer1084ProcessList": dataMariaGaleraClusterVer1084ProcessList,

105 + "dataMariaGaleraClusterVer1084EngineInnoDBStatus": dataMariaGaleraClusterVer1084EngineInnoDBStatus,

106 + "dataMariaVer1145Version": dataMariaVer1145Version,

107 + "dataMariaVer1145UserStatistics": dataMariaVer1145UserStatistics,

108 } {

109 require.NotNil(t, data, fmt.Sprintf("read data: %s", name))

110 _, err := prepareMockRows(data)

@@ -177,6 +187,7 @@ func TestCollector_Check(t *testing.T) {

187 mockExpect(t, m, queryDisableSessionQueryLog, nil)

188 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

189 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

190 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

191 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

192 mockExpect(t, m, queryShowAllSlavesStatus, dataMariaVer1084AllSlavesStatusMultiSource)

193 mockExpect(t, m, queryShowUserStatistics, dataMariaVer1084UserStatistics)

@@ -217,6 +228,7 @@ func TestCollector_Check(t *testing.T) {

228 mockExpect(t, m, queryDisableSessionQueryLog, nil)

229 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

230 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

231 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

232 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

233 mockExpectErr(m, queryShowAllSlavesStatus)

234 mockExpect(t, m, queryShowUserStatistics, dataMariaVer1084UserStatistics)

@@ -231,6 +243,7 @@ func TestCollector_Check(t *testing.T) {

243 mockExpect(t, m, queryDisableSessionQueryLog, nil)

244 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

245 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

246 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

247 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

248 mockExpect(t, m, queryShowAllSlavesStatus, dataMariaVer1084AllSlavesStatusMultiSource)

249 mockExpectErr(m, queryShowUserStatistics)

@@ -245,6 +258,7 @@ func TestCollector_Check(t *testing.T) {

258 mockExpect(t, m, queryDisableSessionQueryLog, nil)

259 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

260 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

261 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

262 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

263 mockExpect(t, m, queryShowAllSlavesStatus, dataMariaVer1084AllSlavesStatusMultiSource)

264 mockExpect(t, m, queryShowUserStatistics, dataMariaVer1084UserStatistics)

@@ -291,6 +305,7 @@ func TestCollector_Collect(t *testing.T) {

305 mockExpect(t, m, queryDisableSessionQueryLog, nil)

306 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

307 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

308 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

309 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

310 mockExpect(t, m, queryShowAllSlavesStatus, nil)

311 mockExpect(t, m, queryShowUserStatistics, dataMariaVer1145UserStatistics)

@@ -351,6 +366,7 @@ func TestCollector_Collect(t *testing.T) {

366 "innodb_buffer_pool_reads": 171,

367 "innodb_buffer_pool_wait_free": 0,

368 "innodb_buffer_pool_write_requests": 148,

369 + "innodb_checkpoint_age": 184,

370 "innodb_data_fsyncs": 17,

371 "innodb_data_pending_fsyncs": 0,

372 "innodb_data_pending_reads": 0,

@@ -360,6 +376,12 @@ func TestCollector_Collect(t *testing.T) {

376 "innodb_data_writes": 16,

377 "innodb_data_written": 0,

378 "innodb_deadlocks": 0,

379 + "innodb_last_checkpoint_at": 46601,

380 + "innodb_log_file_size": 100663296,

381 + "innodb_log_files_in_group": 1,

382 + "innodb_log_group_capacity": 100663296,

383 + "innodb_log_occupancy": 0,

384 + "innodb_log_sequence_number": 46785,

385 "innodb_log_waits": 0,

386 "innodb_log_write_requests": 109,

387 "innodb_log_writes": 15,

@@ -472,6 +494,7 @@ func TestCollector_Collect(t *testing.T) {

494 mockExpect(t, m, queryDisableSessionQueryLog, nil)

495 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

496 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer5564GlobalStatus)

497 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer5564EngineInnoDBStatus)

498 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer5564GlobalVariables)

499 mockExpect(t, m, queryShowSlaveStatus, nil)

500 mockExpect(t, m, queryShowProcessList, dataMariaVer5564ProcessList)

@@ -525,6 +548,7 @@ func TestCollector_Collect(t *testing.T) {

548 "innodb_buffer_pool_reads": 144,

549 "innodb_buffer_pool_wait_free": 0,

550 "innodb_buffer_pool_write_requests": 0,

551 + "innodb_checkpoint_age": 0,

552 "innodb_data_fsyncs": 3,

553 "innodb_data_pending_fsyncs": 0,

554 "innodb_data_pending_reads": 0,

@@ -534,6 +558,12 @@ func TestCollector_Collect(t *testing.T) {

558 "innodb_data_writes": 3,

559 "innodb_data_written": 1536,

560 "innodb_deadlocks": 0,

561 + "innodb_last_checkpoint_at": 1597945,

562 + "innodb_log_file_size": 5242880,

563 + "innodb_log_files_in_group": 2,

564 + "innodb_log_group_capacity": 10485760,

565 + "innodb_log_occupancy": 0,

566 + "innodb_log_sequence_number": 1597945,

567 "innodb_log_waits": 0,

568 "innodb_log_write_requests": 0,

569 "innodb_log_writes": 1,

@@ -606,6 +636,7 @@ func TestCollector_Collect(t *testing.T) {

636 mockExpect(t, m, queryDisableSessionQueryLog, nil)

637 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

638 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

639 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

640 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

641 mockExpect(t, m, queryShowAllSlavesStatus, nil)

642 mockExpect(t, m, queryShowUserStatistics, dataMariaVer1084UserStatistics)

@@ -667,6 +698,7 @@ func TestCollector_Collect(t *testing.T) {

698 "innodb_buffer_pool_reads": 171,

699 "innodb_buffer_pool_wait_free": 0,

700 "innodb_buffer_pool_write_requests": 148,

701 + "innodb_checkpoint_age": 184,

702 "innodb_data_fsyncs": 17,

703 "innodb_data_pending_fsyncs": 0,

704 "innodb_data_pending_reads": 0,

@@ -676,6 +708,12 @@ func TestCollector_Collect(t *testing.T) {

708 "innodb_data_writes": 16,

709 "innodb_data_written": 0,

710 "innodb_deadlocks": 0,

711 + "innodb_last_checkpoint_at": 46601,

712 + "innodb_log_file_size": 100663296,

713 + "innodb_log_files_in_group": 1,

714 + "innodb_log_group_capacity": 100663296,

715 + "innodb_log_occupancy": 0,

716 + "innodb_log_sequence_number": 46785,

717 "innodb_log_waits": 0,

718 "innodb_log_write_requests": 109,

719 "innodb_log_writes": 15,

@@ -788,6 +826,7 @@ func TestCollector_Collect(t *testing.T) {

826 mockExpect(t, m, queryDisableSessionQueryLog, nil)

827 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

828 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

829 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

830 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

831 mockExpect(t, m, queryShowAllSlavesStatus, dataMariaVer1084AllSlavesStatusSingleSource)

832 mockExpect(t, m, queryShowUserStatistics, dataMariaVer1084UserStatistics)

@@ -848,6 +887,7 @@ func TestCollector_Collect(t *testing.T) {

887 "innodb_buffer_pool_reads": 171,

888 "innodb_buffer_pool_wait_free": 0,

889 "innodb_buffer_pool_write_requests": 148,

890 + "innodb_checkpoint_age": 184,

891 "innodb_data_fsyncs": 17,

892 "innodb_data_pending_fsyncs": 0,

893 "innodb_data_pending_reads": 0,

@@ -857,6 +897,12 @@ func TestCollector_Collect(t *testing.T) {

897 "innodb_data_writes": 16,

898 "innodb_data_written": 0,

899 "innodb_deadlocks": 0,

900 + "innodb_last_checkpoint_at": 46601,

901 + "innodb_log_file_size": 100663296,

902 + "innodb_log_files_in_group": 1,

903 + "innodb_log_group_capacity": 100663296,

904 + "innodb_log_occupancy": 0,

905 + "innodb_log_sequence_number": 46785,

906 "innodb_log_waits": 0,

907 "innodb_log_write_requests": 109,

908 "innodb_log_writes": 15,

@@ -972,6 +1018,7 @@ func TestCollector_Collect(t *testing.T) {

1018 mockExpect(t, m, queryDisableSessionQueryLog, nil)

1019 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

1020 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

1021 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

1022 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

1023 mockExpect(t, m, queryShowAllSlavesStatus, dataMariaVer1084AllSlavesStatusMultiSource)

1024 mockExpect(t, m, queryShowUserStatistics, dataMariaVer1084UserStatistics)

@@ -1032,6 +1079,7 @@ func TestCollector_Collect(t *testing.T) {

1079 "innodb_buffer_pool_reads": 171,

1080 "innodb_buffer_pool_wait_free": 0,

1081 "innodb_buffer_pool_write_requests": 148,

1082 + "innodb_checkpoint_age": 184,

1083 "innodb_data_fsyncs": 17,

1084 "innodb_data_pending_fsyncs": 0,

1085 "innodb_data_pending_reads": 0,

@@ -1041,6 +1089,12 @@ func TestCollector_Collect(t *testing.T) {

1089 "innodb_data_writes": 16,

1090 "innodb_data_written": 0,

1091 "innodb_deadlocks": 0,

1092 + "innodb_last_checkpoint_at": 46601,

1093 + "innodb_log_file_size": 100663296,

1094 + "innodb_log_files_in_group": 1,

1095 + "innodb_log_group_capacity": 100663296,

1096 + "innodb_log_occupancy": 0,

1097 + "innodb_log_sequence_number": 46785,

1098 "innodb_log_waits": 0,

1099 "innodb_log_write_requests": 109,

1100 "innodb_log_writes": 15,

@@ -1159,6 +1213,7 @@ func TestCollector_Collect(t *testing.T) {

1213 mockExpect(t, m, queryDisableSessionQueryLog, nil)

1214 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

1215 mockExpect(t, m, queryShowGlobalStatus, dataMariaVer1084GlobalStatus)

1216 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaVer1084EngineInnoDBStatus)

1217 mockExpect(t, m, queryShowGlobalVariables, dataMariaVer1084GlobalVariables)

1218 mockExpectErr(m, queryShowAllSlavesStatus)

1219 mockExpect(t, m, queryShowUserStatistics, dataMariaVer1084UserStatistics)

@@ -1219,6 +1274,7 @@ func TestCollector_Collect(t *testing.T) {

1274 "innodb_buffer_pool_reads": 171,

1275 "innodb_buffer_pool_wait_free": 0,

1276 "innodb_buffer_pool_write_requests": 148,

1277 + "innodb_checkpoint_age": 184,

1278 "innodb_data_fsyncs": 17,

1279 "innodb_data_pending_fsyncs": 0,

1280 "innodb_data_pending_reads": 0,

@@ -1228,6 +1284,12 @@ func TestCollector_Collect(t *testing.T) {

1284 "innodb_data_writes": 16,

1285 "innodb_data_written": 0,

1286 "innodb_deadlocks": 0,

1287 + "innodb_last_checkpoint_at": 46601,

1288 + "innodb_log_file_size": 100663296,

1289 + "innodb_log_files_in_group": 1,

1290 + "innodb_log_group_capacity": 100663296,

1291 + "innodb_log_occupancy": 0,

1292 + "innodb_log_sequence_number": 46785,

1293 "innodb_log_waits": 0,

1294 "innodb_log_write_requests": 109,

1295 "innodb_log_writes": 15,

@@ -1340,6 +1402,7 @@ func TestCollector_Collect(t *testing.T) {

1402 mockExpect(t, m, queryDisableSessionQueryLog, nil)

1403 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

1404 mockExpect(t, m, queryShowGlobalStatus, dataMariaGaleraClusterVer1084GlobalStatus)

1405 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMariaGaleraClusterVer1084EngineInnoDBStatus)

1406 mockExpect(t, m, queryShowGlobalVariables, dataMariaGaleraClusterVer1084GlobalVariables)

1407 mockExpect(t, m, queryShowAllSlavesStatus, nil)

1408 mockExpect(t, m, queryShowUserStatistics, dataMariaGaleraClusterVer1084UserStatistics)

@@ -1400,6 +1463,7 @@ func TestCollector_Collect(t *testing.T) {

1463 "innodb_buffer_pool_reads": 184,

1464 "innodb_buffer_pool_wait_free": 0,

1465 "innodb_buffer_pool_write_requests": 203,

1466 + "innodb_checkpoint_age": 6745,

1467 "innodb_data_fsyncs": 15,

1468 "innodb_data_pending_fsyncs": 0,

1469 "innodb_data_pending_reads": 0,

@@ -1409,6 +1473,12 @@ func TestCollector_Collect(t *testing.T) {

1473 "innodb_data_writes": 14,

1474 "innodb_data_written": 0,

1475 "innodb_deadlocks": 0,

1476 + "innodb_last_checkpoint_at": 46617,

1477 + "innodb_log_file_size": 100663296,

1478 + "innodb_log_files_in_group": 1,

1479 + "innodb_log_group_capacity": 100663296,

1480 + "innodb_log_occupancy": 6,

1481 + "innodb_log_sequence_number": 53362,

1482 "innodb_log_waits": 0,

1483 "innodb_log_write_requests": 65,

1484 "innodb_log_writes": 13,

@@ -1537,6 +1607,7 @@ func TestCollector_Collect(t *testing.T) {

1607 mockExpect(t, m, queryDisableSessionQueryLog, nil)

1608 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

1609 mockExpect(t, m, queryShowGlobalStatus, dataMySQLVer8030GlobalStatus)

1610 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataMySQLVer8030EngineInnoDBStatus)

1611 mockExpect(t, m, queryShowGlobalVariables, dataMySQLVer8030GlobalVariables)

1612 mockExpect(t, m, queryShowReplicaStatus, dataMySQLVer8030ReplicaStatusMultiSource)

1613 mockExpect(t, m, queryShowProcessListPS, dataMySQLVer8030ProcessList)

@@ -1596,6 +1667,7 @@ func TestCollector_Collect(t *testing.T) {

1667 "innodb_buffer_pool_reads": 878,

1668 "innodb_buffer_pool_wait_free": 0,

1669 "innodb_buffer_pool_write_requests": 2377,

1670 + "innodb_checkpoint_age": 0,

1671 "innodb_data_fsyncs": 255,

1672 "innodb_data_pending_fsyncs": 0,

1673 "innodb_data_pending_reads": 0,

@@ -1604,6 +1676,12 @@ func TestCollector_Collect(t *testing.T) {

1676 "innodb_data_reads": 899,

1677 "innodb_data_writes": 561,

1678 "innodb_data_written": 6128128,

1679 + "innodb_last_checkpoint_at": 31603995,

1680 + "innodb_log_file_size": 50331648,

1681 + "innodb_log_files_in_group": 2,

1682 + "innodb_log_group_capacity": 100663296,

1683 + "innodb_log_occupancy": 0,

1684 + "innodb_log_sequence_number": 31603995,

1685 "innodb_log_waits": 0,

1686 "innodb_log_write_requests": 1062,

1687 "innodb_log_writes": 116,

@@ -1675,10 +1753,11 @@ func TestCollector_Collect(t *testing.T) {

1753 mockExpect(t, m, queryDisableSessionQueryLog, nil)

1754 mockExpect(t, m, queryDisableSessionSlowQueryLog, nil)

1755 mockExpect(t, m, queryShowGlobalStatus, dataPerconaVer8029GlobalStatus)

1756 + mockExpect(t, m, queryShowEngineInnoDBStatus, dataPerconaVer8029EngineInnoDBStatus)

1757 mockExpect(t, m, queryShowGlobalVariables, dataPerconaVer8029GlobalVariables)

1758 mockExpect(t, m, queryShowReplicaStatus, nil)

1759 mockExpect(t, m, queryShowUserStatistics, dataPerconaVer8029UserStatistics)

1681 - mockExpect(t, m, queryShowProcessListPS, dataPerconaV8029ProcessList)

1760 + mockExpect(t, m, queryShowProcessListPS, dataPerconaVer8029ProcessList)

1761 },

1762 check: func(t *testing.T, collr *Collector) {

1763 mx := collr.Collect(context.Background())

@@ -1735,6 +1814,7 @@ func TestCollector_Collect(t *testing.T) {

1814 "innodb_buffer_pool_reads": 978,

1815 "innodb_buffer_pool_wait_free": 0,

1816 "innodb_buffer_pool_write_requests": 77412,

1817 + "innodb_checkpoint_age": 0,

1818 "innodb_data_fsyncs": 50,

1819 "innodb_data_pending_fsyncs": 0,

1820 "innodb_data_pending_reads": 0,

@@ -1743,6 +1823,12 @@ func TestCollector_Collect(t *testing.T) {

1823 "innodb_data_reads": 1002,

1824 "innodb_data_writes": 288,

1825 "innodb_data_written": 3420160,

1826 + "innodb_last_checkpoint_at": 31825026,

1827 + "innodb_log_file_size": 50331648,

1828 + "innodb_log_files_in_group": 2,

1829 + "innodb_log_group_capacity": 100663296,

1830 + "innodb_log_occupancy": 0,

1831 + "innodb_log_sequence_number": 31825026,

1832 "innodb_log_waits": 0,

1833 "innodb_log_write_requests": 651,

1834 "innodb_log_writes": 47,

@@ -1890,6 +1976,85 @@ func mockExpectErr(mock sqlmock.Sqlmock, query string) {

1976 mock.ExpectQuery(query).WillReturnError(fmt.Errorf("mock error (%s)", query))

1977 }

1978

1979 +func TestPrepareMockRows(t *testing.T) {

1980 + tests := map[string]struct {

1981 + data string

1982 + rows *sqlmock.Rows

1983 + }{

1984 + "one row": {

1985 + data: `

1986 ++------+-------+

1987 +| Name | Value |

1988 ++------+-------+

1989 +| a | 1 |

1990 ++------+-------+

1991 +`,

1992 + rows: sqlmock.NewRows([]string{"Name", "Value"}).

1993 + AddRow("a", "1"),

1994 + },

1995 + "two rows": {

1996 + data: `

1997 ++------+-------+

1998 +| Name | Value |

1999 ++------+-------+

2000 +| a | 1 |

2001 +| b | 2 |

2002 ++------+-------+

2003 +`,

2004 + rows: sqlmock.NewRows([]string{"Name", "Value"}).

2005 + AddRow("a", "1").AddRow("b", "2"),

2006 + },

2007 + "multiline text": {

2008 + data: `

2009 ++------+-------+

2010 +| Name | Value |

2011 ++------+-------+

2012 +| a | b

2013 +c d

2014 +e |

2015 ++------+-------+

2016 +`,

2017 + rows: sqlmock.NewRows([]string{"Name", "Value"}).

2018 + AddRow("a", "b\nc d\ne"),

2019 + },

2020 + "multiline text prefixed and suffixed with \\n": {

2021 + data: `

2022 ++------+-------+

2023 +| Name | Value |

2024 ++------+-------+

2025 +| a |

2026 +b c

2027 +d

2028 + |

2029 ++------+-------+

2030 +`,

2031 + rows: sqlmock.NewRows([]string{"Name", "Value"}).

2032 + AddRow("a", "\nb c\nd\n"),

2033 + },

2034 + "multiline text in the first column": {

2035 + data: `

2036 ++-------+------+

2037 +| Value | Name |

2038 ++-------+------+

2039 +| a

2040 +b c

2041 +d

2042 + | e |

2043 ++-------+------+

2044 +`,

2045 + rows: sqlmock.NewRows([]string{"Value", "Name"}).

2046 + AddRow("a\nb c\nd\n", "e"),

2047 + }}

2048 +

2049 + for name, test := range tests {

2050 + t.Run(name, func(t *testing.T) {

2051 + out, err := prepareMockRows([]byte(test.data))

2052 + assert.NoError(t, err)

2053 + assert.Equal(t, test.rows, out)

2054 + })

2055 + }

2056 +}

2057 +

2058 func prepareMockRows(data []byte) (*sqlmock.Rows, error) {

2059 if len(data) == 0 {

2060 return sqlmock.NewRows(nil), nil

@@ -1900,9 +2065,11 @@ func prepareMockRows(data []byte) (*sqlmock.Rows, error) {

2065

2066 var numColumns int

2067 var rows *sqlmock.Rows

2068 + var rowLines []string

2069

2070 for sc.Scan() {

1905 - s := strings.TrimSpace(strings.Trim(sc.Text(), "|"))

2071 + line := sc.Text()

2072 + s := strings.TrimSpace(line)

2073 switch {

2074 case s == "",

2075 strings.HasPrefix(s, "+"),

@@ -1910,26 +2077,24 @@ func prepareMockRows(data []byte) (*sqlmock.Rows, error) {

2077 continue

2078 }

2079

1913 - parts := strings.Split(s, "|")

1914 - for i, v := range parts {

1915 - parts[i] = strings.TrimSpace(v)

1916 - }

1917 -

2080 if rows == nil {

2081 + parts := splitCells(line)

2082 numColumns = len(parts)

2083 rows = sqlmock.NewRows(parts)

2084 continue

2085 }

2086

1924 - if len(parts) != numColumns {

1925 - return nil, fmt.Errorf("prepareMockRows(): columns != values (%d/%d)", numColumns, len(parts))

2087 + if strings.Count(s, "|")-1 == numColumns || (rowLines != nil && strings.HasSuffix(s, "|")) {

2088 + vals, err := buildRow(append(rowLines, line), numColumns)

2089 + if err != nil {

2090 + return nil, err

2091 + }

2092 + rows.AddRow(vals...)

2093 + rowLines = nil

2094 + continue

2095 }

2096

1928 - values := make([]driver.Value, len(parts))

1929 - for i, v := range parts {

1930 - values[i] = v

1931 - }

1932 - rows.AddRow(values...)

2097 + rowLines = append(rowLines, line)

2098 }

2099

2100 if rows == nil {

@@ -1938,3 +2103,29 @@ func prepareMockRows(data []byte) (*sqlmock.Rows, error) {

2103

2104 return rows, sc.Err()

2105 }

2106 +

2107 +func splitCells(s string) []string {

2108 + parts := strings.Split(strings.Trim(s, "|"), "|")

2109 + for i := range parts {

2110 + parts[i] = strings.TrimSpace(parts[i])

2111 + }

2112 + return parts

2113 +}

2114 +

2115 +func buildRow(lines []string, cols int) ([]driver.Value, error) {

2116 + row := strings.Join(lines, "\n")

2117 + if !strings.HasPrefix(row, "|") || !strings.HasSuffix(row, "|") {

2118 + return nil, errors.New("prepareMockRows(): malformed row")

2119 + }

2120 +

2121 + parts := strings.Split(strings.Trim(row, "|"), "|")

2122 + if len(parts) != cols {

2123 + return nil, fmt.Errorf("prepareMockRows(): columns != values (%d/%d)", cols, len(parts))

2124 + }

2125 +

2126 + vals := make([]driver.Value, cols)

2127 + for i, c := range parts {

2128 + vals[i] = strings.Trim(c, " ")

2129 + }

2130 + return vals, nil

2131 +}

src/go/plugin/go.d/collector/mysql/metadata.yaml

+20

@@ -40,6 +40,7 @@ modules:

41 - `SELECT VERSION();`

42 - `SHOW GLOBAL STATUS;`

43 + - `SHOW ENGINE INNODB STATUS;`

44 - `SHOW GLOBAL VARIABLES;`

45 - `SHOW SLAVE STATUS;` or `SHOW ALL SLAVES STATUS;` (MariaDBv10.2+) or `SHOW REPLICA STATUS;` (MySQL 8.0.22+)

46 - `SHOW USER_STATISTICS;` (MariaDBv10.1.1+)

@@ -391,6 +392,25 @@ modules:

392 - name: waits

393 - name: write_requests

394 - name: writes

395 + - name: mysql.innodb_redo_log_activity

396 + description: InnoDB Redo Log Activity

397 + unit: B/s

398 + chart_type: line

399 + dimensions:

400 + - name: redo_written

401 + - name: checkpointed

402 + - name: mysql.innodb_redo_log_occupancy

403 + description: InnoDB Redo Log Occupancy

404 + unit: percentage

405 + chart_type: area

406 + dimensions:

407 + - name: occupancy

408 + - name: mysql.innodb_redo_log_checkpoint_age

409 + description: InnoDB Redo Log Checkpoint Age

410 + unit: B

411 + chart_type: line

412 + dimensions:

413 + - name: age

414 - name: mysql.innodb_cur_row_lock

415 description: InnoDB Current Row Locks

416 unit: operations

src/go/plugin/go.d/collector/mysql/testdata/mariadb/v10.8.4-galera-cluster/engine_innodb_status.txt new

+83

@@ -0,0 +1,83 @@

2 +| Type | Name | Status |

4 +| InnoDB | |

5 +=====================================

6 +2025-05-22 08:08:33 0x7f7216db4640 INNODB MONITOR OUTPUT

7 +=====================================

8 +Per second averages calculated from the last 20 seconds

9 +-----------------

10 +BACKGROUND THREAD

11 +-----------------

12 +srv_master_thread loops: 0 srv_active, 0 srv_shutdown, 71583 srv_idle

13 +srv_master_thread log flush and writes: 71582

14 +----------

15 +SEMAPHORES

16 +----------

17 +------------

18 +TRANSACTIONS

19 +------------

20 +Trx id counter 26

21 +Purge done for trx's n:o < 26 undo n:o < 0 state: running but idle

22 +History list length 0

23 +LIST OF TRANSACTIONS FOR EACH SESSION:

24 +---TRANSACTION (0x7f7206000b80), not started

25 +0 lock struct(s), heap size 1128, 0 row lock(s)

26 +--------

27 +FILE I/O

28 +--------

29 +Pending flushes (fsync): 0

30 +168 OS file reads, 14 OS file writes, 17 OS fsyncs

31 +0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s

32 +-------------------------------------

33 +INSERT BUFFER AND ADAPTIVE HASH INDEX

34 +-------------------------------------

35 +Ibuf: size 1, free list len 0, seg size 2, 0 merges

36 +merged operations:

37 + insert 0, delete mark 0, delete 0

38 +discarded operations:

39 + insert 0, delete mark 0, delete 0

40 +0.00 hash searches/s, 0.00 non-hash searches/s

41 +---

42 +LOG

43 +---

44 +Log sequence number 53362

45 +Log flushed up to 53362

46 +Pages flushed up to 46617

47 +Last checkpoint at 46617

48 +----------------------

49 +BUFFER POOL AND MEMORY

50 +----------------------

51 +Total large memory allocated 167772160

52 +Dictionary memory allocated 862248

53 +Buffer pool size 8064

54 +Free buffers 7765

55 +Database pages 299

56 +Old database pages 0

57 +Modified db pages 152

58 +Percent of dirty pages(LRU & free pages): 1.885

59 +Max dirty pages percent: 90.000

60 +Pending reads 0

61 +Pending writes: LRU 0, flush list 0

62 +Pages made young 0, not young 0

63 +0.00 youngs/s, 0.00 non-youngs/s

64 +Pages read 155, created 144, written 0

65 +0.00 reads/s, 0.00 creates/s, 0.00 writes/s

66 +No buffer pool page gets since the last printout

67 +Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s

68 +LRU len: 299, unzip_LRU len: 0

69 +I/O sum[0]:cur[0], unzip sum[0]:cur[0]

70 +--------------

71 +ROW OPERATIONS

72 +--------------

73 +0 read views open inside InnoDB

74 +Process ID=0, Main thread ID=0, state: sleeping

75 +Number of rows inserted 0, updated 0, deleted 0, read 0

76 +0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s

77 +Number of system rows inserted 2, updated 0, deleted 0, read 0

78 +0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s

79 +----------------------------

80 +END OF INNODB MONITOR OUTPUT

81 +============================

82 + |

83 ++--------+------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

src/go/plugin/go.d/collector/mysql/testdata/mariadb/v10.8.4-galera-cluster/global_variables.txt

+9 -8

@@ -1,8 +1,9 @@

1 -+--------------------+-------+

2 -| Variable_name | Value |

3 -+--------------------+-------+

4 -| log_bin | ON |

5 -| max_connections | 151 |

6 -| performance_schema | ON |

7 -| table_open_cache | 2000 |

8 -+--------------------+-------+

1 ++----------------------+-----------+

2 +| Variable_name | Value |

3 ++----------------------+-----------+

4 +| innodb_log_file_size | 100663296 |

5 +| log_bin | ON |

6 +| max_connections | 151 |

7 +| performance_schema | ON |

8 +| table_open_cache | 2000 |

9 ++----------------------+-----------+

src/go/plugin/go.d/collector/mysql/testdata/mariadb/v10.8.4/engine_innodb_status.txt new

+81

@@ -0,0 +1,81 @@

2 +| Type | Name | Status |

4 +| InnoDB | |

5 +=====================================

6 +2025-05-22 08:10:43 0x7fdc125ec640 INNODB MONITOR OUTPUT

7 +=====================================

8 +Per second averages calculated from the last 36 seconds

9 +-----------------

10 +BACKGROUND THREAD

11 +-----------------

12 +srv_master_thread loops: 0 srv_active, 0 srv_shutdown, 5135 srv_idle

13 +srv_master_thread log flush and writes: 5135

14 +----------

15 +SEMAPHORES

16 +----------

17 +------------

18 +TRANSACTIONS

19 +------------

20 +Trx id counter 15

21 +Purge done for trx's n:o < 13 undo n:o < 0 state: running but idle

22 +History list length 0

23 +LIST OF TRANSACTIONS FOR EACH SESSION:

24 +--------

25 +FILE I/O

26 +--------

27 +Pending flushes (fsync): 0

28 +166 OS file reads, 1 OS file writes, 2 OS fsyncs

29 +0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s

30 +-------------------------------------

31 +INSERT BUFFER AND ADAPTIVE HASH INDEX

32 +-------------------------------------

33 +Ibuf: size 1, free list len 0, seg size 2, 0 merges

34 +merged operations:

35 + insert 0, delete mark 0, delete 0

36 +discarded operations:

37 + insert 0, delete mark 0, delete 0

38 +0.00 hash searches/s, 0.00 non-hash searches/s

39 +---

40 +LOG

41 +---

42 +Log sequence number 46785

43 +Log flushed up to 46785

44 +Pages flushed up to 46617

45 +Last checkpoint at 46601

46 +----------------------

47 +BUFFER POOL AND MEMORY

48 +----------------------

49 +Total large memory allocated 167772160

50 +Dictionary memory allocated 855336

51 +Buffer pool size 8064

52 +Free buffers 7780

53 +Database pages 284

54 +Old database pages 0

55 +Modified db pages 6

56 +Percent of dirty pages(LRU & free pages): 0.074

57 +Max dirty pages percent: 90.000

58 +Pending reads 0

59 +Pending writes: LRU 0, flush list 0

60 +Pages made young 0, not young 0

61 +0.00 youngs/s, 0.00 non-youngs/s

62 +Pages read 153, created 131, written 0

63 +0.00 reads/s, 0.00 creates/s, 0.00 writes/s

64 +No buffer pool page gets since the last printout

65 +Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s

66 +LRU len: 284, unzip_LRU len: 0

67 +I/O sum[0]:cur[0], unzip sum[0]:cur[0]

68 +--------------

69 +ROW OPERATIONS

70 +--------------

71 +0 read views open inside InnoDB

72 +Process ID=0, Main thread ID=0, state: sleeping

73 +Number of rows inserted 0, updated 0, deleted 0, read 0

74 +0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s

75 +Number of system rows inserted 0, updated 0, deleted 0, read 0

76 +0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s

77 +----------------------------

78 +END OF INNODB MONITOR OUTPUT

79 +============================

80 + |

81 ++--------+------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

src/go/plugin/go.d/collector/mysql/testdata/mariadb/v10.8.4/global_variables.txt

+9 -8

@@ -1,8 +1,9 @@

1 -+--------------------+-------+

2 -| Variable_name | Value |

3 -+--------------------+-------+

4 -| log_bin | ON |

5 -| max_connections | 151 |

6 -| performance_schema | ON |

7 -| table_open_cache | 2000 |

8 -+--------------------+-------+

1 ++------------------------+-----------+

2 +| Variable_name | Value |

3 ++------------------------+-----------+

4 +| innodb_log_file_size | 100663296 |

5 +| log_bin | ON |

6 +| max_connections | 151 |

7 +| performance_schema | ON |

8 +| table_open_cache | 2000 |

9 ++------------------------+-----------+

src/go/plugin/go.d/collector/mysql/testdata/mariadb/v5.5.64/engine_innodb_status.txt new

+122

@@ -0,0 +1,122 @@

1 ++--------+------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

2 +| Type | Name | Status |

3 ++--------+------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

4 +| InnoDB | |

5 +=====================================

6 +250522 8:10:54 INNODB MONITOR OUTPUT

7 +=====================================

8 +Per second averages calculated from the last 25 seconds

9 +-----------------

10 +BACKGROUND THREAD

11 +-----------------

12 +srv_master_thread loops: 1 1_second, 1 sleeps, 0 10_second, 1 background, 1 flush

13 +srv_master_thread log flush and writes: 1

14 +----------

15 +SEMAPHORES

16 +----------

17 +OS WAIT ARRAY INFO: reservation count 2, signal count 2

18 +Mutex spin waits 0, rounds 0, OS waits 0

19 +RW-shared spins 2, rounds 60, OS waits 2

20 +RW-excl spins 0, rounds 0, OS waits 0

21 +Spin rounds per wait: 0.00 mutex, 30.00 RW-shared, 0.00 RW-excl

22 +--------

23 +FILE I/O

24 +--------

25 +I/O thread 0 state: waiting for completed aio requests (insert buffer thread)

26 +I/O thread 1 state: waiting for completed aio requests (log thread)

27 +I/O thread 2 state: waiting for completed aio requests (read thread)

28 +I/O thread 3 state: waiting for completed aio requests (read thread)

29 +I/O thread 4 state: waiting for completed aio requests (read thread)

30 +I/O thread 5 state: waiting for completed aio requests (read thread)

31 +I/O thread 6 state: waiting for completed aio requests (write thread)

32 +I/O thread 7 state: waiting for completed aio requests (write thread)

33 +I/O thread 8 state: waiting for completed aio requests (write thread)

34 +I/O thread 9 state: waiting for completed aio requests (write thread)

35 +Pending normal aio reads: 0 [0, 0, 0, 0] , aio writes: 0 [0, 0, 0, 0] ,

36 + ibuf aio reads: 0, log i/o's: 0, sync i/o's: 0

37 +Pending flushes (fsync) log: 0; buffer pool: 0

38 +155 OS file reads, 3 OS file writes, 3 OS fsyncs

39 +0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s

40 +-------------------------------------

41 +INSERT BUFFER AND ADAPTIVE HASH INDEX

42 +-------------------------------------

43 +Ibuf: size 1, free list len 0, seg size 2, 0 merges

44 +merged operations:

45 + insert 0, delete mark 0, delete 0

46 +discarded operations:

47 + insert 0, delete mark 0, delete 0

48 +Hash table size 553229, node heap has 0 buffer(s)

49 +0.00 hash searches/s, 0.00 non-hash searches/s

50 +---

51 +LOG

52 +---

53 +Log sequence number 1597945

54 +Log flushed up to 1597945

55 +Last checkpoint at 1597945

56 +Max checkpoint age 7782360

57 +Checkpoint age target 7539162

58 +Modified age 0

59 +Checkpoint age 0

60 +0 pending log writes, 0 pending chkp writes

61 +8 log i/o's done, 0.00 log i/o's/second

62 +----------------------

63 +BUFFER POOL AND MEMORY

64 +----------------------

65 +Total memory allocated 275513344; in additional pool allocated 0

66 +Total memory allocated by read views 88

67 +Internal hash tables (constant factor + variable factor)

68 + Adaptive hash index 4430048 (4425832 + 4216)

69 + Page hash 277432 (buffer pool 0 only)

70 + Dictionary cache 1146964 (1107952 + 39012)

71 + File system 83536 (82672 + 864)

72 + Lock system 665312 (664936 + 376)

73 + Recovery system 0 (0 + 0)

74 +Dictionary memory allocated 39012

75 +Buffer pool size 16383

76 +Buffer pool size, bytes 268419072

77 +Free buffers 16240

78 +Database pages 143

79 +Old database pages 0

80 +Modified db pages 0

81 +Pending reads 0

82 +Pending writes: LRU 0, flush list 0, single page 0

83 +Pages made young 0, not young 0

84 +0.00 youngs/s, 0.00 non-youngs/s

85 +Pages read 143, created 0, written 0

86 +0.00 reads/s, 0.00 creates/s, 0.00 writes/s

87 +No buffer pool page gets since the last printout

88 +Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s

89 +LRU len: 143, unzip_LRU len: 0

90 +I/O sum[0]:cur[0], unzip sum[0]:cur[0]

91 +--------------

92 +ROW OPERATIONS

93 +--------------

94 +0 queries inside InnoDB, 0 queries in queue

95 +1 read views open inside InnoDB

96 +0 transactions active inside InnoDB

97 +0 out of 1000 descriptors used

98 +---OLDEST VIEW---

99 +Normal read view

100 +Read view low limit trx n:o 500

101 +Read view up limit trx id 500

102 +Read view low limit trx id 500

103 +Read view individually stored trx ids:

104 +-----------------

105 +Main thread process no. 1, id 140523048273664, state: waiting for server activity

106 +Number of rows inserted 0, updated 0, deleted 0, read 0

107 +0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s

108 +------------

109 +TRANSACTIONS

110 +------------

111 +Trx id counter 500

112 +Purge done for trx's n:o < 0 undo n:o < 0

113 +History list length 0

114 +LIST OF TRANSACTIONS FOR EACH SESSION:

115 +---TRANSACTION 0, not started

116 +MySQL thread id 4, OS thread handle 0x7fce44f9f700, query id 906 localhost root

117 +SHOW ENGINE INNODB STATUS

118 +----------------------------

119 +END OF INNODB MONITOR OUTPUT

120 +============================

121 + |

122 ++--------+------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

src/go/plugin/go.d/collector/mysql/testdata/mariadb/v5.5.64/global_variables.txt

+9 -7

@@ -1,7 +1,9 @@

1 -+------------------+-------+

2 -| Variable_name | Value |

3 -+------------------+-------+

4 -| log_bin | OFF |

5 -| max_connections | 100 |

6 -| table_open_cache | 400 |

7 -+------------------+-------+

\ No newline at end of file

1 ++---------------------------+---------+

2 +| Variable_name | Value |

3 ++---------------------------+---------+

4 +| innodb_log_file_size | 5242880 |

5 +| innodb_log_files_in_group | 2 |

6 +| log_bin | OFF |

7 +| max_connections | 100 |

8 +| table_open_cache | 400 |

9 ++---------------------------+---------+

src/go/plugin/go.d/collector/mysql/testdata/mysql/v8.0.30/engine_innodb_status.txt new

+119

@@ -0,0 +1,119 @@

2 +| Type | Name | Status |

4 +| InnoDB | |

5 +=====================================

6 +2025-05-22 08:09:53 140048127227648 INNODB MONITOR OUTPUT

7 +=====================================

8 +Per second averages calculated from the last 40 seconds

9 +-----------------

10 +BACKGROUND THREAD

11 +-----------------

12 +srv_master_thread loops: 1 srv_active, 0 srv_shutdown, 5092 srv_idle

13 +srv_master_thread log flush and writes: 0

14 +----------

15 +SEMAPHORES

16 +----------

17 +OS WAIT ARRAY INFO: reservation count 37

18 +OS WAIT ARRAY INFO: signal count 39

19 +RW-shared spins 0, rounds 0, OS waits 0

20 +RW-excl spins 0, rounds 0, OS waits 0

21 +RW-sx spins 0, rounds 0, OS waits 0

22 +Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx

23 +------------

24 +TRANSACTIONS

25 +------------

26 +Trx id counter 1806

27 +Purge done for trx's n:o < 1803 undo n:o < 0 state: running but idle

28 +History list length 0

29 +LIST OF TRANSACTIONS FOR EACH SESSION:

30 +---TRANSACTION 421523007474904, not started

31 +0 lock struct(s), heap size 1128, 0 row lock(s)

32 +---TRANSACTION 421523007474096, not started

33 +0 lock struct(s), heap size 1128, 0 row lock(s)

34 +---TRANSACTION 421523007473288, not started

35 +0 lock struct(s), heap size 1128, 0 row lock(s)

36 +--------

37 +FILE I/O

38 +--------

39 +I/O thread 0 state: waiting for completed aio requests (insert buffer thread)

40 +I/O thread 1 state: waiting for completed aio requests (log thread)

41 +I/O thread 2 state: waiting for completed aio requests (read thread)

42 +I/O thread 3 state: waiting for completed aio requests (read thread)

43 +I/O thread 4 state: waiting for completed aio requests (read thread)

44 +I/O thread 5 state: waiting for completed aio requests (read thread)

45 +I/O thread 6 state: waiting for completed aio requests (write thread)

46 +I/O thread 7 state: waiting for completed aio requests (write thread)

47 +I/O thread 8 state: waiting for completed aio requests (write thread)

48 +I/O thread 9 state: waiting for completed aio requests (write thread)

49 +Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] ,

50 + ibuf aio reads:, log i/o's:

51 +Pending flushes (fsync) log: 0; buffer pool: 0

52 +1026 OS file reads, 276 OS file writes, 116 OS fsyncs

53 +0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s

54 +-------------------------------------

55 +INSERT BUFFER AND ADAPTIVE HASH INDEX

56 +-------------------------------------

57 +Ibuf: size 1, free list len 0, seg size 2, 0 merges

58 +merged operations:

59 + insert 0, delete mark 0, delete 0

60 +discarded operations:

61 + insert 0, delete mark 0, delete 0

62 +Hash table size 34679, node heap has 0 buffer(s)

63 +Hash table size 34679, node heap has 0 buffer(s)

64 +Hash table size 34679, node heap has 4 buffer(s)

65 +Hash table size 34679, node heap has 0 buffer(s)

66 +Hash table size 34679, node heap has 0 buffer(s)

67 +Hash table size 34679, node heap has 0 buffer(s)

68 +Hash table size 34679, node heap has 1 buffer(s)

69 +Hash table size 34679, node heap has 0 buffer(s)

70 +0.00 hash searches/s, 0.00 non-hash searches/s

71 +---

72 +LOG

73 +---

74 +Log sequence number 31603995

75 +Log buffer assigned up to 31603995

76 +Log buffer completed up to 31603995

77 +Log written up to 31603995

78 +Log flushed up to 31603995

79 +Added dirty pages up to 31603995

80 +Pages flushed up to 31603995

81 +Last checkpoint at 31603995

82 +Log minimum file id is 9

83 +Log maximum file id is 9

84 +33 log i/o's done, 0.00 log i/o's/second

85 +----------------------

86 +BUFFER POOL AND MEMORY

87 +----------------------

88 +Total large memory allocated 0

89 +Dictionary memory allocated 491793

90 +Buffer pool size 8191

91 +Free buffers 7037

92 +Database pages 1149

93 +Old database pages 444

94 +Modified db pages 0

95 +Pending reads 0

96 +Pending writes: LRU 0, flush list 0, single page 0

97 +Pages made young 0, not young 0

98 +0.00 youngs/s, 0.00 non-youngs/s

99 +Pages read 1004, created 145, written 202

100 +0.00 reads/s, 0.00 creates/s, 0.00 writes/s

101 +No buffer pool page gets since the last printout

102 +Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s

103 +LRU len: 1149, unzip_LRU len: 0

104 +I/O sum[0]:cur[0], unzip sum[0]:cur[0]

105 +--------------

106 +ROW OPERATIONS

107 +--------------

108 +0 queries inside InnoDB, 0 queries in queue

109 +0 read views open inside InnoDB

110 +Process ID=1, Main thread ID=140047405811456 , state=sleeping

111 +Number of rows inserted 0, updated 0, deleted 0, read 0

112 +0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s

113 +Number of system rows inserted 8, updated 331, deleted 8, read 4814

114 +0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s

115 +----------------------------

116 +END OF INNODB MONITOR OUTPUT

117 +============================

118 + |

119 ++--------+------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

src/go/plugin/go.d/collector/mysql/testdata/mysql/v8.0.30/global_variables.txt

+11 -9

@@ -1,9 +1,11 @@

1 -+--------------------------+-------+

2 -| Variable_name | Value |

3 -+--------------------------+-------+

4 -| disabled_storage_engines | |

5 -| log_bin | ON |

6 -| max_connections | 151 |

7 -| performance_schema | ON |

8 -| table_open_cache | 4000 |

9 -+--------------------------+-------+

1 ++---------------------------+----------+

2 +| Variable_name | Value |

3 ++---------------------------+----------+

4 +| disabled_storage_engines | |

5 +| innodb_log_file_size | 50331648 |

6 +| innodb_log_files_in_group | 2 |

7 +| log_bin | ON |

8 +| max_connections | 151 |

9 +| performance_schema | ON |

10 +| table_open_cache | 4000 |

11 ++---------------------------+----------+

src/go/plugin/go.d/collector/mysql/testdata/percona/v8.0.29/engine_innodb_status.txt new

+126

@@ -0,0 +1,126 @@

2 +| Type | Name | Status |

4 +| InnoDB | |

5 +=====================================

6 +2025-05-22 08:10:10 140637068326656 INNODB MONITOR OUTPUT

7 +=====================================

8 +Per second averages calculated from the last 15 seconds

9 +-----------------

10 +BACKGROUND THREAD

11 +-----------------

12 +srv_master_thread loops: 1 srv_active, 0 srv_shutdown, 5157 srv_idle

13 +srv_master_thread log flush and writes: 0

14 +----------

15 +SEMAPHORES

16 +----------

17 +OS WAIT ARRAY INFO: reservation count 2

18 +OS WAIT ARRAY INFO: signal count 2

19 +RW-shared spins 0, rounds 0, OS waits 0

20 +RW-excl spins 0, rounds 0, OS waits 0

21 +RW-sx spins 0, rounds 0, OS waits 0

22 +Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx

23 +------------

24 +TRANSACTIONS

25 +------------

26 +Trx id counter 1803

27 +Purge done for trx's n:o < 1801 undo n:o < 0 state: running but idle

28 +History list length 0

29 +LIST OF TRANSACTIONS FOR EACH SESSION:

30 +---TRANSACTION 422111948574072, not started

31 +0 lock struct(s), heap size 1128, 0 row lock(s)

32 +---TRANSACTION 422111948573224, not started

33 +0 lock struct(s), heap size 1128, 0 row lock(s)

34 +---TRANSACTION 422111948572376, not started