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Update mysqld-exporter.yml (#442)

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* Update mysqld-exporter.yml

add some rules

* Add new MySQL monitoring rules

---------

Co-authored-by: Samuel Berthe <dev@samuel-berthe.fr>
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asdf1234 2025-02-17 06:29:00 +08:00 committed by GitHub
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commit 4a7b9b5c72
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20
_data/rules.yml
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@ -616,6 +616,26 @@ groups:
description: MySQL has just been restarted, less than one minute ago on {{ $labels.instance }}.
query: "mysql_global_status_uptime < 60"
severity: info
- name: MySQL High QPS
description: MySQL is being overload with unusual QPS (> 10k QPS).
query: "irate(mysql_global_status_questions[1m]) > 10000"
severity: info
for: 2m
- name: MySQL too many open files
description: MySQL has too many open files, consider increase variables open_files_limit on {{ $labels.instance }}.
query: "mysql_global_status_innodb_num_open_files / mysql_global_variables_open_files_limit * 100 > 75"
severity: warning
for: 2m
- name: MySQL InnoDB Force Recovery is enabled
description: "MySQL InnoDB force recovery is enabled on {{ $labels.instance }}"
query: "mysql_global_variables_innodb_force_recovery != 0"
severity: warning
for: 2m
- name: MySQL InnoDB history_len too long
description: "MySQL history_len (undo log) too long on {{ $labels.instance }}"
query: "mysql_info_schema_innodb_metrics_transaction_trx_rseg_history_len > 50000"
severity: warning
for: 2m
- name: PostgreSQL
exporters:

45
dist/rules/mysql/mysqld-exporter.yml vendored
View file

@ -93,3 +93,48 @@ groups:
annotations:
summary: MySQL restarted (instance {{ $labels.instance }})
description: "MySQL has just been restarted, less than one minute ago on {{ $labels.instance }}.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: Mysql_High_QPS
expr: 'irate(mysql_global_status_questions[1m]) > 10000'
for: 2m
labels:
severity: info
annotations:
summary: Mysql_High_QPS (instance {{ $labels.instance }})
description: "Mysql_High_QPS on {{ $labels.instance }}.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: MySQL too many open files
expr: 'mysql_global_status_innodb_num_open_files / mysql_global_variables_open_files_limit * 100 > 75'
for: 2m
labels:
severity: warning
annotations:
summary: MySQL too many Open files (instance {{ $labels.instance }})
description: "MySQL too many Open files,please conside increase variables open_files_limit {{ $labels.instance }}.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: MySQL too many connections
expr: 'sum by(instance) (mysql_info_schema_processes_by_host) / sum by(instance) (mysql_global_variables_max_connections) * 100 > 80'
for: 2m
labels:
severity: warning
annotations:
summary: MySQL too many connections (instance {{ $labels.instance }})
description: "MySQL too many connections,current connections is more than 80% {{ $labels.instance }}.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: MySQL InnoDB Force Recovery is enabled
expr: 'mysql_global_variables_innodb_force_recovery != 0'
for: 2m
labels:
severity: warning
annotations:
summary: MySQL InnoDB Force Recovery is enabled (instance {{ $labels.instance }})
description: "MySQL InnoDB Force Recovery not equal 0 {{ $labels.instance }}.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: MySQL InnoDB history_len too long
expr: 'mysql_info_schema_innodb_metrics_transaction_trx_rseg_history_len > 50000'
for: 2m
labels:
severity: warning
annotations:
summary: MySQL history_len (undo log) too long (instance {{ $labels.instance }})
description: "MySQL history_len (undo log) too long {{ $labels.instance }}.\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"