PostgresDB 25000: Invalid Transaction State

What is PostgresDB 25000: Invalid Transaction State

When encountering the error 25000: Invalid Transaction State in Postgres, immediate actions include:

Check Current Transactions:Run the command to see active transactions, which might be in an invalid state:SELECT * FROM pg_stat_activity WHERE state != 'idle';Identify Blocking Queries:Determine if there are any locking issues causing the transaction to fail:SELECT blocked_locks.pid AS blocked_pid, blocked_activity.usename AS blocked_user, blocking_locks.pid AS blocking_pid, blocking_activity.usename AS blocking_user, blocked_activity.query AS blocked_statement, blocking_activity.query AS current_statement_in_blocking_processFROM pg_catalog.pg_locks blocked_locksJOIN pg_catalog.pg_stat_activity blocked_activity ON blocked_activity.pid = blocked_locks.pidJOIN pg_catalog.pg_locks blocking_locks ON blocking_locks.locktype = blocked_locks.locktype AND blocking_locks.DATABASE IS NOT DISTINCT FROM blocked_locks.DATABASE AND blocking_locks.relation IS NOT DISTINCT FROM blocked_locks.relation AND blocking_locks.page IS NOT DISTINCT FROM blocked_locks.page AND blocking_locks.tuple IS NOT DISTINCT FROM blocked_locks.tuple AND blocking_locks.virtualxid IS NOT DISTINCT FROM blocked_locks.virtualxid AND blocking_locks.transactionid IS NOT DISTINCT FROM blocked_locks.transactionid AND blocking_locks.classid IS NOT DISTINCT FROM blocked_locks.classid AND blocking_locks.objid IS NOT DISTINCT FROM blocked_locks.objid AND blocking_locks.objsubid IS NOT DISTINCT FROM blocked_locks.objsubid AND blocking_locks.pid != blocked_locks.pidJOIN pg_catalog.pg_stat_activity blocking_activity ON blocking_activity.pid = blocking_locks.pidWHERE NOT blocked_locks.GRANTED;Rollback or Commit: If you identify a transaction that seems to be stuck or in an invalid state, decide whether to roll it back or commit it, if that's safe and makes sense. To rollback, use:ROLLBACK;Or if committing is the correct action:COMMIT;Check for Idle Transactions: Look for transactions that have been left idle and might be holding resources:SELECT pid, age(now(), query_start), usename, query FROM pg_stat_activity WHERE state = 'idle in transaction';Terminate Unwanted Sessions: If you find sessions that should not be active or are causing issues, you can terminate them. Replace <pid> with the actual process ID from your investigation:SELECT pg_terminate_backend(<pid>);

Use these actions with caution, especially when terminating backend processes or rolling back transactions, as these can have significant effects on your database's state and data integrity.