tail -f /path_to_your_log_directory/pg_log.log
to view the most recent entries.top
, htop
, or vmstat
to check the current usage of CPU, memory, and disk I/O. High resource usage can sometimes lead to various database issues.df -h
command to check the disk space usage on the server. Ensure that there is enough disk space on the drive where PostgreSQL stores its data.SELECT * FROM pg_locks pl JOIN pg_stat_activity psa ON pl.pid = psa.pid;
to check for any locks that might be causing database operations to stall.SELECT max_connections FROM pg_settings;
and compare it with the current active connections using SELECT COUNT(*) FROM pg_stat_activity;
.sudo service postgresql restart
(adjust based on your system's service management). Note, this should be done with caution and preferably during a maintenance window.Each of these steps is intended to provide immediate insights or actions that can help diagnose or mitigate the impact of the error code 0Z000: Diagnostics Exception
in PostgreSQL when there is no database administrator available.
(Perfect for DevOps & SREs)
(Perfect for DevOps & SREs)