9/17/2023 0 Comments Aurora postgresql logoFor more information, see Monitoring DB load with Performance Insights on Amazon RDS.Ģ. If you turned on Performance Insights, view the DB load that's grouped by wait event, hosts, SQL queries, or users to identify blocked transactions. For more information, see Best practices for working with PostgreSQL. For example, you can add indexes, rewrite queries, or run vacuum and analyze commands. To resolve performance bottlenecks, tune the performance of your database. If the wait_event_type column is any other value, then there's a performance bottleneck with resources such as CPU, storage, or network capacity. If the value of the wait_event_type column is Lock, then the query is blocked by other transactions or queries. Note: Replace TABLE NAME with your table name or condition. Run the following query against the pg_stat_activity view to identify the current state of the blocked transaction: SELECT * FROM pg_stat_activity WHERE query iLIKE '%TABLE NAME%' ORDER BY state To resolve this issue, identify and stop the transaction that blocks the query.ġ. Uncommitted transactions can cause new queries to be blocked, to sleep, and to fail when they exceed the lock wait timeout or the statement timeout.
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