| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package mysql |
| 4 | |
| 5 | import ( |
| 6 | "context" |
| 7 | "strings" |
| 8 | |
| 9 | "github.com/blang/semver/v4" |
| 10 | ) |
| 11 | |
| 12 | const queryShowUserStatistics = "SHOW USER_STATISTICS;" |
| 13 | |
| 14 | func mustDivideMariaDBUserStatsCPUTime(version *semver.Version, isMariaDB bool) bool { |
| 15 | if !isMariaDB || version == nil { |
| 16 | return false |
| 17 | } |
| 18 | return version.EQ(semver.Version{Major: 10, Minor: 11, Patch: 11}) || |
| 19 | version.EQ(semver.Version{Major: 11, Minor: 4, Patch: 5}) |
| 20 | } |
| 21 | |
| 22 | func (c *Collector) collectUserStatistics(ctx context.Context) error { |
| 23 | // https://mariadb.com/kb/en/user-statistics/ |
| 24 | // https://mariadb.com/kb/en/information-schema-user_statistics-table/ |
| 25 | q := queryShowUserStatistics |
| 26 | c.Debugf("executing query: '%s'", q) |
| 27 | |
| 28 | var user string |
| 29 | _, err := c.collectQuery(ctx, q, func(column, value string, _ bool) { |
| 30 | switch column { |
| 31 | case "User": |
| 32 | user = value |
| 33 | case "Cpu_time": |
| 34 | // https://jira.mariadb.org/browse/MDEV-36586 |
| 35 | needsDivision := mustDivideMariaDBUserStatsCPUTime(c.version, c.isMariaDB) |
| 36 | |
| 37 | if needsDivision { |
| 38 | c.mx.setUser("userstats_cpu_time", user, int64(parseFloat(value)/1e7*1000)) |
| 39 | } else { |
| 40 | c.mx.setUser("userstats_cpu_time", user, int64(parseFloat(value)*1000)) |
| 41 | } |
| 42 | case |
| 43 | "Total_connections", |
| 44 | "Lost_connections", |
| 45 | "Denied_connections", |
| 46 | "Empty_queries", |
| 47 | "Binlog_bytes_written", |
| 48 | "Rows_read", |
| 49 | "Rows_sent", |
| 50 | "Rows_deleted", |
| 51 | "Rows_inserted", |
| 52 | "Rows_updated", |
| 53 | "Rows_fetched", // Percona |
| 54 | "Select_commands", |
| 55 | "Update_commands", |
| 56 | "Other_commands", |
| 57 | "Access_denied", |
| 58 | "Commit_transactions", |
| 59 | "Rollback_transactions": |
| 60 | c.mx.setUser("userstats_"+strings.ToLower(column), user, parseInt(value)) |
| 61 | } |
| 62 | }) |
| 63 | return err |
| 64 | } |