| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package pika |
| 4 | |
| 5 | import ( |
| 6 | "bufio" |
| 7 | "regexp" |
| 8 | "strconv" |
| 9 | "strings" |
| 10 | |
| 11 | "github.com/netdata/netdata/go/plugins/plugin/framework/collectorapi" |
| 12 | ) |
| 13 | |
| 14 | // https://github.com/Qihoo360/pika/blob/master/src/pika_admin.cc |
| 15 | // https://github.com/Qihoo360/pika/blob/a0dbdcf5897dd7800ba8a4d1eafce1595619ddc8/src/pika_admin.cc#L694-L710 |
| 16 | |
| 17 | const ( |
| 18 | infoSectionServer = "# Server" |
| 19 | infoSectionData = "# Data" |
| 20 | infoSectionClients = "# Clients" |
| 21 | infoSectionStats = "# Stats" |
| 22 | infoSectionCommandExecCount = "# Command_Exec_Count" |
| 23 | infoSectionCPU = "# CPU" |
| 24 | infoSectionReplMaster = "# Replication(MASTER)" |
| 25 | infoSectionReplSlave = "# Replication(SLAVE)" |
| 26 | infoSectionReplMasterSlave = "# Replication(Master && SLAVE)" |
| 27 | infoSectionKeyspace = "# Keyspace" |
| 28 | ) |
| 29 | |
| 30 | var infoSections = map[string]struct{}{ |
| 31 | infoSectionServer: {}, |
| 32 | infoSectionData: {}, |
| 33 | infoSectionClients: {}, |
| 34 | infoSectionStats: {}, |
| 35 | infoSectionCommandExecCount: {}, |
| 36 | infoSectionCPU: {}, |
| 37 | infoSectionReplMaster: {}, |
| 38 | infoSectionReplSlave: {}, |
| 39 | infoSectionReplMasterSlave: {}, |
| 40 | infoSectionKeyspace: {}, |
| 41 | } |
| 42 | |
| 43 | func isInfoSection(line string) bool { _, ok := infoSections[line]; return ok } |
| 44 | |
| 45 | func (c *Collector) collectInfo(ms map[string]int64, info string) { |
| 46 | var curSection string |
| 47 | |
| 48 | sc := bufio.NewScanner(strings.NewReader(info)) |
| 49 | for sc.Scan() { |
| 50 | line := strings.TrimSpace(sc.Text()) |
| 51 | if len(line) == 0 { |
| 52 | curSection = "" |
| 53 | continue |
| 54 | } |
| 55 | if strings.HasPrefix(line, "#") { |
| 56 | if isInfoSection(line) { |
| 57 | curSection = line |
| 58 | } |
| 59 | continue |
| 60 | } |
| 61 | |
| 62 | field, value, ok := parseProperty(line) |
| 63 | if !ok { |
| 64 | continue |
| 65 | } |
| 66 | |
| 67 | switch curSection { |
| 68 | case infoSectionCommandExecCount: |
| 69 | c.collectInfoCommandExecCountProperty(ms, field, value) |
| 70 | case infoSectionKeyspace: |
| 71 | c.collectInfoKeyspaceProperty(ms, field, value) |
| 72 | default: |
| 73 | collectNumericValue(ms, field, value) |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | var reKeyspaceValue = regexp.MustCompile(`^(.+)_keys=(\d+), expires=(\d+), invalid_keys=(\d+)`) |
| 79 | |
| 80 | func (c *Collector) collectInfoKeyspaceProperty(ms map[string]int64, field, value string) { |
| 81 | match := reKeyspaceValue.FindStringSubmatch(value) |
| 82 | if match == nil { |
| 83 | return |
| 84 | } |
| 85 | |
| 86 | dataType, keys, expires, invalid := strings.ToLower(match[1]), match[2], match[3], match[4] |
| 87 | collectNumericValue(ms, field+"_"+dataType+"_keys", keys) |
| 88 | collectNumericValue(ms, field+"_"+dataType+"_expires_keys", expires) |
| 89 | collectNumericValue(ms, field+"_"+dataType+"_invalid_keys", invalid) |
| 90 | |
| 91 | if !c.collectedDbs[field] { |
| 92 | c.collectedDbs[field] = true |
| 93 | c.addDbToKeyspaceCharts(field) |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | func (c *Collector) collectInfoCommandExecCountProperty(ms map[string]int64, field, value string) { |
| 98 | collectNumericValue(ms, "cmd_"+field+"_calls", value) |
| 99 | |
| 100 | if !c.collectedCommands[field] { |
| 101 | c.collectedCommands[field] = true |
| 102 | c.addCmdToCommandsCharts(field) |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | func (c *Collector) addCmdToCommandsCharts(cmd string) { |
| 107 | c.addDimToChart(chartCommandsCalls.ID, &collectorapi.Dim{ |
| 108 | ID: "cmd_" + cmd + "_calls", |
| 109 | Name: cmd, |
| 110 | Algo: collectorapi.Incremental, |
| 111 | }) |
| 112 | } |
| 113 | |
| 114 | func (c *Collector) addDbToKeyspaceCharts(db string) { |
| 115 | c.addDimToChart(chartDbStringsKeys.ID, &collectorapi.Dim{ |
| 116 | ID: db + "_strings_keys", |
| 117 | Name: db, |
| 118 | }) |
| 119 | c.addDimToChart(chartDbStringsExpiresKeys.ID, &collectorapi.Dim{ |
| 120 | ID: db + "_strings_expires_keys", |
| 121 | Name: db, |
| 122 | }) |
| 123 | c.addDimToChart(chartDbStringsInvalidKeys.ID, &collectorapi.Dim{ |
| 124 | ID: db + "_strings_invalid_keys", |
| 125 | Name: db, |
| 126 | }) |
| 127 | |
| 128 | c.addDimToChart(chartDbHashesKeys.ID, &collectorapi.Dim{ |
| 129 | ID: db + "_hashes_keys", |
| 130 | Name: db, |
| 131 | }) |
| 132 | c.addDimToChart(chartDbHashesExpiresKeys.ID, &collectorapi.Dim{ |
| 133 | ID: db + "_hashes_expires_keys", |
| 134 | Name: db, |
| 135 | }) |
| 136 | c.addDimToChart(chartDbHashesInvalidKeys.ID, &collectorapi.Dim{ |
| 137 | ID: db + "_hashes_invalid_keys", |
| 138 | Name: db, |
| 139 | }) |
| 140 | |
| 141 | c.addDimToChart(chartDbListsKeys.ID, &collectorapi.Dim{ |
| 142 | ID: db + "_lists_keys", |
| 143 | Name: db, |
| 144 | }) |
| 145 | c.addDimToChart(chartDbListsExpiresKeys.ID, &collectorapi.Dim{ |
| 146 | ID: db + "_lists_expires_keys", |
| 147 | Name: db, |
| 148 | }) |
| 149 | c.addDimToChart(chartDbListsInvalidKeys.ID, &collectorapi.Dim{ |
| 150 | ID: db + "_lists_invalid_keys", |
| 151 | Name: db, |
| 152 | }) |
| 153 | |
| 154 | c.addDimToChart(chartDbZsetsKeys.ID, &collectorapi.Dim{ |
| 155 | ID: db + "_zsets_keys", |
| 156 | Name: db, |
| 157 | }) |
| 158 | c.addDimToChart(chartDbZsetsExpiresKeys.ID, &collectorapi.Dim{ |
| 159 | ID: db + "_zsets_expires_keys", |
| 160 | Name: db, |
| 161 | }) |
| 162 | c.addDimToChart(chartDbZsetsInvalidKeys.ID, &collectorapi.Dim{ |
| 163 | ID: db + "_zsets_invalid_keys", |
| 164 | Name: db, |
| 165 | }) |
| 166 | |
| 167 | c.addDimToChart(chartDbSetsKeys.ID, &collectorapi.Dim{ |
| 168 | ID: db + "_sets_keys", |
| 169 | Name: db, |
| 170 | }) |
| 171 | c.addDimToChart(chartDbSetsExpiresKeys.ID, &collectorapi.Dim{ |
| 172 | ID: db + "_sets_expires_keys", |
| 173 | Name: db, |
| 174 | }) |
| 175 | c.addDimToChart(chartDbSetsInvalidKeys.ID, &collectorapi.Dim{ |
| 176 | ID: db + "_sets_invalid_keys", |
| 177 | Name: db, |
| 178 | }) |
| 179 | } |
| 180 | |
| 181 | func (c *Collector) addDimToChart(chartID string, dim *collectorapi.Dim) { |
| 182 | chart := c.Charts().Get(chartID) |
| 183 | if chart == nil { |
| 184 | c.Warningf("error on adding '%s' dimension: can not find '%s' chart", dim.ID, chartID) |
| 185 | return |
| 186 | } |
| 187 | if err := chart.AddDim(dim); err != nil { |
| 188 | c.Warning(err) |
| 189 | return |
| 190 | } |
| 191 | chart.MarkNotCreated() |
| 192 | } |
| 193 | |
| 194 | func parseProperty(prop string) (field, value string, ok bool) { |
| 195 | var sep byte |
| 196 | if strings.HasPrefix(prop, "db") { |
| 197 | sep = ' ' |
| 198 | } else { |
| 199 | sep = ':' |
| 200 | } |
| 201 | i := strings.IndexByte(prop, sep) |
| 202 | if i == -1 { |
| 203 | return "", "", false |
| 204 | } |
| 205 | field, value = prop[:i], prop[i+1:] |
| 206 | return field, value, field != "" && value != "" |
| 207 | } |
| 208 | |
| 209 | func collectNumericValue(ms map[string]int64, field, value string) { |
| 210 | v, err := strconv.ParseFloat(value, 64) |
| 211 | if err != nil { |
| 212 | return |
| 213 | } |
| 214 | if strings.IndexByte(value, '.') == -1 { |
| 215 | ms[field] = int64(v) |
| 216 | } else { |
| 217 | ms[field] = int64(v * precision) |
| 218 | } |
| 219 | } |