Added prepared statements mysqld-exporter alert (#407)

samber · Mar 26, 2024 · 2494ccd · 2494ccd
1 parent 85b102d
commit 2494ccd
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diff --git a/_data/rules.yml b/_data/rules.yml
@@ -588,6 +588,11 @@ groups:
                 query: "max_over_time(mysql_global_status_threads_connected[1m]) / mysql_global_variables_max_connections * 100 > 80"
                 severity: warning
                 for: 2m
+              - name: MySQL high prepared statements utilization (> 80%)
+                description: "High utilization of prepared statements (>80%) on {{ $labels.instance }}"
+                query: "max_over_time(mysql_global_status_prepared_stmt_count[1m]) / mysql_global_variables_max_prepared_stmt_count * 100 > 80"
+                severity: warning
+                for: 2m
               - name: MySQL high threads running
                 description: "More than 60% of MySQL connections are in running state on {{ $labels.instance }}"
                 query: "max_over_time(mysql_global_status_threads_running[1m]) / mysql_global_variables_max_connections * 100 > 60"

diff --git a/dist/rules/mysql/mysqld-exporter.yml b/dist/rules/mysql/mysqld-exporter.yml
@@ -22,6 +22,15 @@ groups:
         summary: MySQL too many connections (> 80%) (instance {{ $labels.instance }})
         description: "More than 80% of MySQL connections are in use on {{ $labels.instance }}\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
+    - alert: MySQL high prepared statements utilization (> 80%)
+      expr: 'max_over_time(mysql_global_status_prepared_stmt_count[1m]) / mysql_global_variables_max_prepared_stmt_count * 100 > 80'
+      for: 2m
+      labels:
+        severity: warning
+      annotations:
+        summary: MySQL high prepared statements utilization (> 80%) (instance {{ $labels.instance }})
+        description: "High utilization of prepared statements (>80%) on {{ $labels.instance }}\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
+
     - alert: MysqlHighThreadsRunning
       expr: 'max_over_time(mysql_global_status_threads_running[1m]) / mysql_global_variables_max_connections * 100 > 60'
       for: 2m