A.51. Release 4.0.19

Enhance in stopping pgpool main process. (Tatsuo Ishii)

If "pgpool stop" couldn't terminate the main process within certain period (currently 5 seconds), send the signal again.

Change the PID length of pcp_proc_count command to 7 characters long. (Bo Peng)

Enhance error message to include the message kind returned and the backend node id while processing parse message. (Tatsuo Ishii)

Downgrade log level of ParameterStatus message from LOG to DEBUG5. (Tatsuo Ishii)

Discussion: [pgpool-general: 8042]

Change the default value of pcp_listen_addresses from '*' to 'localhost'. (Tatsuo Ishii)

Adjust the field name in pcp_watchdog_info. (Muhammad Usama)

Fix issue that watchdog cluster keeps rejecting the restarted remote node which is lost previously. (Muhammad Usama)

Issue report: [pgpool-general: 7896]

Fix exit_handler in pgpool main process to avoid possible infinite wait. (Tatsuo Ishii)

Fix main process exiting if a backend is failing or shutting down while performing finding primary. (Tatsuo Ishii)

Fix segfaults in watchdog. (Muhammad Usama)

Discussion: [pgpool-general: 8030]

Doc: update configuration example. (Masaya Kawamoto)

Doc: update the example output of pcp_watchdog_info. (Bo Peng)

Doc: mention that escaping is required if you are providing the password as an argument to pg_enc and the password contains a "$" character. (Bo Peng)

Enhance regression test 074.bug700_memqcache_segfault to avoid the timeut error. (Tatsuo Ishii)

Improve regression test to detect segmentation fault. (Bo Peng)