Prometheus exporter for MySQL server metrics.
Supported versions:
- MySQL >= 5.6.
- MariaDB >= 10.3
NOTE: Not all collection methods are supported on MySQL/MariaDB < 5.6
CREATE USER 'exporter'@'localhost' IDENTIFIED BY 'XXXXXXXX' WITH MAX_USER_CONNECTIONS 3;
GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO 'exporter'@'localhost';NOTE: It is recommended to set a max connection limit for the user to avoid overloading the server with monitoring scrapes under heavy load. This is not supported on all MySQL/MariaDB versions; for example, MariaDB 10.1 (provided with Ubuntu 18.04) does not support this feature.
go build
Running using ~/my.yaml:
./mysqld_exporter <flags>
例子: ./mysqld_exporter --config.my-cnf=./my.yaml --web.listen-address=:9104
--my.cnf 未使用原项目使用
--my.yaml 新项目使用
例子：
host: #数据库连接信息配置
test001: #数据库标识
ip: 192.168.42.128
user: root
pwd: 45ef3u@d4Dfd
port: 3306
test002:
ip: 192.168.42.128
user: root
pwd: 45ef3u@d4Dfd
port: 3307
# 指标收集开关，根据需要开启或关闭，默认全部关闭
global_status: false
global_variables: false
slave_status: false
processlist: false
mysql_user: false
innodb_tablespaces: false
binlog_size: false
table_locks: false
client_stats: false
engine_innodb_status: false
table_schema: false
innodb_metrics: false
auto_increment_columns: false
table_io_waits: false
index_io_waits: false
events_statements: false
events_statements_sum: false
events_waits: false
file_events: false
file_instances: false
memory_events: false
replication_group_members: false
replication_group_member_stats: false
replication_applier_status_by_worker: false
user_stats: false
table_stats: false
schema_stats: false
innodb_cmp: false
innodb_cmp_mem: false
query_response_time: false
engine_tokudb_status: false
heartbeat: false
slave_hosts: false
replica_host: false
--prometheus_config_example.yaml 普罗米修斯配置参考
例子:
scrape_configs:
- job_name: 'mysql_exporter_test001'
scrape_timeout: 10s
scrape_interval: 1m
static_configs:
- targets:
- '10.0.44.68:9104'
labels:
name: test001
__metrics_path__: /metrics
__param_name: test001
- job_name: 'mysql_exporter_test002'
scrape_timeout: 10s
scrape_interval: 1m
static_configs:
- targets:
- '10.0.44.68:9104'
labels:
name: test002
__metrics_path__: /metrics
__param_name: test002
或
scrape_configs:
- job_name: 'mysql_exporter'
scrape_timeout: 10s
scrape_interval: 1m
static_configs:
- targets:
- '10.0.44.68:9104'
labels:
name: test001
__metrics_path__: /metrics
__param_name: test001
- targets:
- '10.0.44.68:9104'
labels:
name: test002
__metrics_path__: /metrics
__param_name: test002
| Name | MySQL Version | Description |
|---|---|---|
| collect.auto_increment.columns | 5.1 | Collect auto_increment columns and max values from information_schema. |
| collect.binlog_size | 5.1 | Collect the current size of all registered binlog files |
| collect.engine_innodb_status | 5.1 | Collect from SHOW ENGINE INNODB STATUS. |
| collect.engine_tokudb_status | 5.6 | Collect from SHOW ENGINE TOKUDB STATUS. |
| collect.global_status | 5.1 | Collect from SHOW GLOBAL STATUS (Enabled by default) |
| collect.global_variables | 5.1 | Collect from SHOW GLOBAL VARIABLES (Enabled by default) |
| collect.info_schema.clientstats | 5.5 | If running with userstat=1, set to true to collect client statistics. |
| collect.info_schema.innodb_metrics | 5.6 | Collect metrics from information_schema.innodb_metrics. |
| collect.info_schema.innodb_tablespaces | 5.7 | Collect metrics from information_schema.innodb_sys_tablespaces. |
| collect.info_schema.innodb_cmp | 5.5 | Collect InnoDB compressed tables metrics from information_schema.innodb_cmp. |
| collect.info_schema.innodb_cmpmem | 5.5 | Collect InnoDB buffer pool compression metrics from information_schema.innodb_cmpmem. |
| collect.info_schema.processlist | 5.1 | Collect thread state counts from information_schema.processlist. |
| collect.info_schema.processlist.min_time | 5.1 | Minimum time a thread must be in each state to be counted. (default: 0) |
| collect.info_schema.query_response_time | 5.5 | Collect query response time distribution if query_response_time_stats is ON. |
| collect.info_schema.replica_host | 5.6 | Collect metrics from information_schema.replica_host_status. |
| collect.info_schema.tables | 5.1 | Collect metrics from information_schema.tables. |
| collect.info_schema.tables.databases | 5.1 | The list of databases to collect table stats for, or '*' for all. |
| collect.info_schema.tablestats | 5.1 | If running with userstat=1, set to true to collect table statistics. |
| collect.info_schema.schemastats | 5.1 | If running with userstat=1, set to true to collect schema statistics |
| collect.info_schema.userstats | 5.1 | If running with userstat=1, set to true to collect user statistics. |
| collect.mysql.user | 5.5 | Collect data from mysql.user table |
| collect.perf_schema.eventsstatements | 5.6 | Collect metrics from performance_schema.events_statements_summary_by_digest. |
| collect.perf_schema.eventsstatements.digest_text_limit | 5.6 | Maximum length of the normalized statement text. (default: 120) |
| collect.perf_schema.eventsstatements.limit | 5.6 | Limit the number of events statements digests by response time. (default: 250) |
| collect.perf_schema.eventsstatements.timelimit | 5.6 | Limit how old the 'last_seen' events statements can be, in seconds. (default: 86400) |
| collect.perf_schema.eventsstatementssum | 5.7 | Collect metrics from performance_schema.events_statements_summary_by_digest summed. |
| collect.perf_schema.eventswaits | 5.5 | Collect metrics from performance_schema.events_waits_summary_global_by_event_name. |
| collect.perf_schema.file_events | 5.6 | Collect metrics from performance_schema.file_summary_by_event_name. |
| collect.perf_schema.file_instances | 5.5 | Collect metrics from performance_schema.file_summary_by_instance. |
| collect.perf_schema.file_instances.remove_prefix | 5.5 | Remove path prefix in performance_schema.file_summary_by_instance. |
| collect.perf_schema.indexiowaits | 5.6 | Collect metrics from performance_schema.table_io_waits_summary_by_index_usage. |
| collect.perf_schema.memory_events | 5.7 | Collect metrics from performance_schema.memory_summary_global_by_event_name. |
| collect.perf_schema.memory_events.remove_prefix | 5.7 | Remove instrument prefix in performance_schema.memory_summary_global_by_event_name. |
| collect.perf_schema.tableiowaits | 5.6 | Collect metrics from performance_schema.table_io_waits_summary_by_table. |
| collect.perf_schema.tablelocks | 5.6 | Collect metrics from performance_schema.table_lock_waits_summary_by_table. |
| collect.perf_schema.replication_group_members | 5.7 | Collect metrics from performance_schema.replication_group_members. |
| collect.perf_schema.replication_group_member_stats | 5.7 | Collect metrics from performance_schema.replication_group_member_stats. |
| collect.perf_schema.replication_applier_status_by_worker | 5.7 | Collect metrics from performance_schema.replication_applier_status_by_worker. |
| collect.slave_status | 5.1 | Collect from SHOW SLAVE STATUS (Enabled by default) |
| collect.slave_hosts | 5.1 | Collect from SHOW SLAVE HOSTS |
| collect.heartbeat | 5.1 | Collect from heartbeat. |
| collect.heartbeat.database | 5.1 | Database from where to collect heartbeat data. (default: heartbeat) |
| collect.heartbeat.table | 5.1 | Table from where to collect heartbeat data. (default: heartbeat) |
| collect.heartbeat.utc | 5.1 | Use UTC for timestamps of the current server (pt-heartbeat is called with --utc). (default: false) |
| Name | Description |
|---|---|
| config.my-cnf | Path to .my.cnf file to read MySQL credentials from. (default: ~/.my.yaml) |
| log.level | Logging verbosity (default: info) |
| exporter.lock_wait_timeout | Set a lock_wait_timeout (in seconds) on the connection to avoid long metadata locking. (default: 2) |
| exporter.log_slow_filter | Add a log_slow_filter to avoid slow query logging of scrapes. NOTE: Not supported by Oracle MySQL. |
| tls.insecure-skip-verify | Ignore tls verification errors. |
| web.config.file | Path to a web configuration file |
| web.listen-address | Address to listen on for web interface and telemetry. |
| web.telemetry-path | Path under which to expose metrics. |
| version | Print the version information. |
The MySQLd Exporter supports TLS and basic authentication.
To use TLS and/or basic authentication, you need to pass a configuration file
using the --web.config.file parameter. The format of the file is described
in the exporter-toolkit repository.
The MySQL server's data source name
must be set via the DATA_SOURCE_NAME environment variable.
The format of this variable is described at https://github.com/go-sql-driver/mysql#dsn-data-source-name.
If The MySQL server supports SSL, you may need to specify a CA truststore to verify the server's chain-of-trust. You may also need to specify a SSL keypair for the client side of the SSL connection. To configure the mysqld exporter to use a custom CA certificate, add the following to the mysql cnf file:
ssl-ca=/path/to/ca/file
To specify the client SSL keypair, add the following to the cnf.
ssl-key=/path/to/ssl/client/key
ssl-cert=/path/to/ssl/client/cert
Customizing the SSL configuration is only supported in the mysql cnf file and is not supported if you set the mysql server's data source name in the environment variable DATA_SOURCE_NAME.
You can deploy this exporter using the prom/mysqld-exporter Docker image.
For example:
docker network create my-mysql-network
docker pull prom/mysqld-exporter
docker run -d \
-p 9104:9104 \
--network my-mysql-network \
-e DATA_SOURCE_NAME="user:password@(hostname:3306)/" \
prom/mysqld-exporterWith collect.heartbeat enabled, mysqld_exporter will scrape replication delay
measured by heartbeat mechanisms. Pt-heartbeat is the
reference heartbeat implementation supported.
The mysqld_exporter will expose all metrics from enabled collectors by default. This is the recommended way to collect metrics to avoid errors when comparing metrics of different families.
For advanced use the mysqld_exporter can be passed an optional list of collectors to filter metrics. The collect[] parameter may be used multiple times. In Prometheus configuration you can use this syntax under the scrape config.
params:
collect[]:
- foo
- barThis can be useful for having different Prometheus servers collect specific metrics from targets.
There is a set of sample rules, alerts and dashboards available in the mysqld-mixin