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Issue If postgres is consuming large amounts of CPU on your Satellite 6 server it may be due to specific queries running longer than expected.Environment Red Hat Satellite 6Subscriber exclusive content A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more. ...
慢查询日志 slow_query_log 启动停止记录慢查询日志,默认不启动 slow_query_log_file 指定慢查询日志的存储路径以及文件,默认情况下保存在MySQL的数据目录中 long_query_time...指定记录慢查询日志SQL执行时间的阈值,默认值为10秒,通常改为0.001秒也就是1毫秒可能比较合适 log_queries_not_using_indexes 是否记录未...
DBAs and developers use pganalyze to identify the root cause of performance issues, optimize queries and to get alerts about critical issues. Sign up for free!
Auto_explain (**) A Postgres extension that logs execution plans of slow queries automatically. PostgreSQL pgBadger Very popular Postgres log file analyzer with a graphical output. Helps find long-running queries, demanding workloads, etc. PostgreSQL Disaster Recovery and High Availability...
"configs": "{\"name\":\"5分钟内平均慢查询数\",\"mode\":\"prometheus\",\"link\":\"http://127.0.0.1:9090\",\"prome_ql\":[\"irate(mysql_global_status_slow_queries[5m])\"],\"layout\":{\"h\":2,\"w\":8,\"x\":0,\"y\":4,\"i\":\"6\"}}", "weight": 0 }, ...
statements that are logged. If you set log_min_duration_statement to 900ms, for example, it will only log the queries that exceed this time. Of course, this is only useful as a volume control if the value you pick is a reasonable threshold for what a ‘slow’ query is ...
Built-in platform and CLI tools help you understand system performance at a glance, with key metrics like CPU, IOPS, connections, and storage resources. Postgres Insights enhances database performance with automated assistance for monitoring cache hit ratio, index hits, and slow queries. ...
You can enableauto_explainby adding to the configuration a parameter that starts withauto_explain.as in the following example excerpt (which automatically logs execution plans of queries that take longer than 10 seconds to complete): # ...postgresql:parameters:auto_explain.log_min_duration:"10s"...
这样做的成本相对较低,因此每分钟做4次(LOG_SNAPSHOT_INTERVAL_MS)就可以. //假设写入xl_running_xact的间隔明显大于BgWriterDelay,但是我们不会使整个超时处理复杂化(不会考虑写xlog的时间),只是保证即使处于冬眠模式,我们也会经常被调用。 //严格满足LOG_SNAPSHOT_INTERVAL_MS并不重要。我们会检查自上次记录运行...