| |
PostgreSQL has three kinds of logs are pg_log (database running log), pg_xlog (WAL log, that redo logs), pg_clog (transaction commit log record of the transaction metadata)
pg_log is off by default, need to set the parameters to enable this log. pg_xlog and pg_clog are forced open, not close.
1. Enable and configure logging parameters pg_log
log_destination = 'csvlog'
logging_collector = on
log_directory = 'pg_log'
log_filename = 'postgresql-% Y-% m-% d_% H% M% S.log'
log_rotation_age = 1d
log_rotation_size = 100MB
log_min_messages = info
# Record slow SQL execution
log_min_duration_statement = 60
log_checkpoints = on
log_connections = on
log_disconnections = on
log_duration = on
log_line_prefix = '% m'
# Monitoring database long locks
log_lock_waits = on
# Record DDL operations
log_statement = 'ddl'
2. Restart PostgreSQL to see the newly generated log $ PGDATA / pg_log / under.
pg_ctl restart -m fast |
|
|
|