Added userstats to mysql input plugin (#2137)
* Added GatherUserStatistics, row Uptime in gatherGlobalStatuses, and version fields & tags * Updated README file * pulling in latest from master * ran go fmt to fix formatting * fix unreachable code * few fixes * cleaning up and applying suggestions from sparrc
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@ -7,6 +7,7 @@ This plugin gathers the statistic data from MySQL server
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* Slave statuses
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* Binlog size
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* Process list
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* User Statistics
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* Info schema auto increment columns
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* Table I/O waits
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* Index I/O waits
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@ -44,6 +45,9 @@ This plugin gathers the statistic data from MySQL server
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## gather thread state counts from INFORMATION_SCHEMA.PROCESSLIST
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gather_process_list = true
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#
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## gather thread state counts from INFORMATION_SCHEMA.USER_STATISTICS
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gather_user_statistics = true
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#
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## gather auto_increment columns and max values from information schema
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gather_info_schema_auto_inc = true
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#
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@ -89,6 +93,30 @@ Requires to be turned on in configuration.
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* binary_files_count(int, number)
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* Process list - connection metrics from processlist for each user. It has the following tags
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* connections(int, number)
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* User Statistics - connection metrics from user statistics for each user. It has the following fields
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* access_denied
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* binlog_bytes_written
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* busy_time
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* bytes_received
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* bytes_sent
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* commit_transactions
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* concurrent_connections
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* connected_time
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* cpu_time
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* denied_connections
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* empty_queries
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* hostlost_connections
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* other_commands
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* rollback_transactions
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* rows_fetched
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* rows_updated
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* select_commands
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* server
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* table_rows_read
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* total_connections
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* total_ssl_connections
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* update_commands
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* user
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* Perf Table IO waits - total count and time of I/O waits event for each table
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and process. It has following fields:
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* table_io_waits_total_fetch(float, number)
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@ -158,6 +186,8 @@ The unit of fields varies by the tags.
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* server (the host name from which the metrics are gathered)
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* Process list measurement has following tags
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* user (username for whom the metrics are gathered)
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* User Statistics measurement has following tags
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* user (username for whom the metrics are gathered)
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* Perf table IO waits measurement has following tags
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* schema
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* name (object name for event or process)
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@ -23,6 +23,7 @@ type Mysql struct {
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PerfEventsStatementsTimeLimit int64 `toml:"perf_events_statemetns_time_limit"`
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TableSchemaDatabases []string `toml:"table_schema_databases"`
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GatherProcessList bool `toml:"gather_process_list"`
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GatherUserStatistics bool `toml:"gather_user_statistics"`
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GatherInfoSchemaAutoInc bool `toml:"gather_info_schema_auto_inc"`
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GatherSlaveStatus bool `toml:"gather_slave_status"`
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GatherBinaryLogs bool `toml:"gather_binary_logs"`
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@ -60,6 +61,9 @@ var sampleConfig = `
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## gather thread state counts from INFORMATION_SCHEMA.PROCESSLIST
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gather_process_list = true
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#
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## gather thread state counts from INFORMATION_SCHEMA.USER_STATISTICS
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gather_user_statistics = true
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#
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## gather auto_increment columns and max values from information schema
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gather_info_schema_auto_inc = true
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#
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@ -415,6 +419,10 @@ const (
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WHERE ID != connection_id()
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GROUP BY command,state
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ORDER BY null`
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infoSchemaUserStatisticsQuery = `
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SELECT *,count(*)
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FROM information_schema.user_statistics
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GROUP BY user`
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infoSchemaAutoIncQuery = `
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SELECT table_schema, table_name, column_name, auto_increment,
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CAST(pow(2, case data_type
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@ -530,7 +538,6 @@ const (
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table_name
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FROM information_schema.tables
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WHERE table_schema = 'performance_schema' AND table_name = ?
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`
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)
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@ -582,6 +589,13 @@ func (m *Mysql) gatherServer(serv string, acc telegraf.Accumulator) error {
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}
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}
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if m.GatherUserStatistics {
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err = m.GatherUserStatisticsStatuses(db, serv, acc)
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if err != nil {
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return err
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}
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}
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if m.GatherSlaveStatus {
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err = m.gatherSlaveStatuses(db, serv, acc)
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if err != nil {
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@ -669,6 +683,11 @@ func (m *Mysql) gatherGlobalVariables(db *sql.DB, serv string, acc telegraf.Accu
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return err
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}
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key = strings.ToLower(key)
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// parse mysql version and put into field and tag
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if strings.Contains(key, "version") {
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fields[key] = string(val)
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tags[key] = string(val)
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}
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// parse value, if it is numeric then save, otherwise ignore
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if floatVal, ok := parseValue(val); ok {
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fields[key] = floatVal
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@ -854,6 +873,12 @@ func (m *Mysql) gatherGlobalStatuses(db *sql.DB, serv string, acc telegraf.Accum
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return err
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}
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fields["syncs"] = i
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case "Uptime":
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i, err := strconv.ParseInt(string(val.([]byte)), 10, 64)
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if err != nil {
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return err
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}
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fields["uptime"] = i
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}
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}
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// Send any remaining fields
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@ -884,6 +909,74 @@ func (m *Mysql) gatherGlobalStatuses(db *sql.DB, serv string, acc telegraf.Accum
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}
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}
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// gather connection metrics from user_statistics for each user
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if m.GatherUserStatistics {
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conn_rows, err := db.Query("select user, total_connections, concurrent_connections, connected_time, busy_time, cpu_time, bytes_received, bytes_sent, binlog_bytes_written, rows_fetched, rows_updated, table_rows_read, select_commands, update_commands, other_commands, commit_transactions, rollback_transactions, denied_connections, lost_connections, access_denied, empty_queries, total_ssl_connections FROM INFORMATION_SCHEMA.USER_STATISTICS GROUP BY user")
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for conn_rows.Next() {
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var user string
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var total_connections int64
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var concurrent_connections int64
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var connected_time int64
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var busy_time int64
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var cpu_time int64
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var bytes_received int64
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var bytes_sent int64
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var binlog_bytes_written int64
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var rows_fetched int64
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var rows_updated int64
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var table_rows_read int64
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var select_commands int64
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var update_commands int64
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var other_commands int64
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var commit_transactions int64
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var rollback_transactions int64
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var denied_connections int64
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var lost_connections int64
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var access_denied int64
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var empty_queries int64
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var total_ssl_connections int64
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err = conn_rows.Scan(&user, &total_connections, &concurrent_connections,
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&connected_time, &busy_time, &cpu_time, &bytes_received, &bytes_sent, &binlog_bytes_written,
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&rows_fetched, &rows_updated, &table_rows_read, &select_commands, &update_commands, &other_commands,
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&commit_transactions, &rollback_transactions, &denied_connections, &lost_connections, &access_denied,
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&empty_queries, &total_ssl_connections,
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)
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if err != nil {
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return err
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}
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tags := map[string]string{"server": servtag, "user": user}
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fields := map[string]interface{}{
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"total_connections": total_connections,
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"concurrent_connections": concurrent_connections,
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"connected_time": connected_time,
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"busy_time": busy_time,
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"cpu_time": cpu_time,
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"bytes_received": bytes_received,
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"bytes_sent": bytes_sent,
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"binlog_bytes_written": binlog_bytes_written,
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"rows_fetched": rows_fetched,
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"rows_updated": rows_updated,
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"table_rows_read": table_rows_read,
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"select_commands": select_commands,
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"update_commands": update_commands,
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"other_commands": other_commands,
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"commit_transactions": commit_transactions,
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"rollback_transactions": rollback_transactions,
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"denied_connections": denied_connections,
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"lost_connections": lost_connections,
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"access_denied": access_denied,
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"empty_queries": empty_queries,
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"total_ssl_connections": total_ssl_connections,
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}
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acc.AddFields("mysql_user_stats", fields, tags)
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}
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}
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return nil
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}
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@ -932,6 +1025,88 @@ func (m *Mysql) GatherProcessListStatuses(db *sql.DB, serv string, acc telegraf.
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return nil
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}
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// GatherUserStatistics can be used to collect metrics on each running command
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// and its state with its running count
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func (m *Mysql) GatherUserStatisticsStatuses(db *sql.DB, serv string, acc telegraf.Accumulator) error {
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// run query
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rows, err := db.Query(infoSchemaUserStatisticsQuery)
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if err != nil {
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return err
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}
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defer rows.Close()
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var (
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user string
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total_connections int64
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concurrent_connections int64
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connected_time int64
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busy_time int64
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cpu_time int64
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bytes_received int64
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bytes_sent int64
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binlog_bytes_written int64
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rows_fetched int64
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rows_updated int64
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table_rows_read int64
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select_commands int64
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update_commands int64
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other_commands int64
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commit_transactions int64
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rollback_transactions int64
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denied_connections int64
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lost_connections int64
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access_denied int64
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empty_queries int64
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total_ssl_connections int64
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count uint32
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)
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var servtag string
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servtag, err = parseDSN(serv)
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if err != nil {
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servtag = "localhost"
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}
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for rows.Next() {
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err = rows.Scan(&user, &total_connections, &concurrent_connections,
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&connected_time, &busy_time, &cpu_time, &bytes_received, &bytes_sent, &binlog_bytes_written,
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&rows_fetched, &rows_updated, &table_rows_read, &select_commands, &update_commands, &other_commands,
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&commit_transactions, &rollback_transactions, &denied_connections, &lost_connections, &access_denied,
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&empty_queries, &total_ssl_connections, &count,
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)
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if err != nil {
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return err
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}
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tags := map[string]string{"server": servtag, "user": user}
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fields := map[string]interface{}{
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"total_connections": total_connections,
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"concurrent_connections": concurrent_connections,
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"connected_time": connected_time,
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"busy_time": busy_time,
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"cpu_time": cpu_time,
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"bytes_received": bytes_received,
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"bytes_sent": bytes_sent,
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"binlog_bytes_written": binlog_bytes_written,
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"rows_fetched": rows_fetched,
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"rows_updated": rows_updated,
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"table_rows_read": table_rows_read,
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"select_commands": select_commands,
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"update_commands": update_commands,
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"other_commands": other_commands,
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"commit_transactions": commit_transactions,
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"rollback_transactions": rollback_transactions,
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"denied_connections": denied_connections,
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"lost_connections": lost_connections,
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"access_denied": access_denied,
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"empty_queries": empty_queries,
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"total_ssl_connections": total_ssl_connections,
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}
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acc.AddFields("mysql_user_stats", fields, tags)
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}
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return nil
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}
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// gatherPerfTableIOWaits can be used to get total count and time
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// of I/O wait event for each table and process
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func (m *Mysql) gatherPerfTableIOWaits(db *sql.DB, serv string, acc telegraf.Accumulator) error {
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