postgresql error: canceling statement due to user request

Question

What causes this error in postgresql?

org.postgresql.util.PSQLException: ERROR: canceling statement due to user request

Answer 1

In addition to Eric's suggestions, you can see statement cancels when:

• An adminisrator or another connection logged in as the same user uses pg_cancel_backend to ask your session to cancel its current statement
• The administrator sends a signal to the PostgreSQL backend that's running your statement
• The administrator requests a fast shutdown or restart of the PostgreSQL server

Check for cron jobs or load management tools that might be cancelling long-running queries.