A.56. Release 4.1.6

Delete any pre-existing watchdog command socket file at startup. (Muhammad Usama)

Patch provided by Masaya Kawamoto.

Fix the incorrect "weight" displayed in pgpool_adm_pcp_node_info. (Tatsuo Ishii)

Fix follow_primary.sh.sample to avoid removing recovery.conf after executing pg_rewind. (Bo Peng)

Fix watchdog leader sync process to start health check process. (Tatsuo Ishii)

Fix that DB cluster path was not correct in watchdog_setup installation. (Tatsuo Ishii)

Fix pgpool_setup so that it creates separate archive directory for each DB node. (Tatsuo Ishii)

Fix messages when health check process starts. (Tatsuo Ishii)

Doc: mention that the sample scripts doesn't support tablespaces in "Pgpool-II + Watchdog Setup Example". (Bo Peng)

Doc: add explanation about the shared memory required by shared relation cache. (Tatsuo Ishii)

Fix error while allocating shared memory. (Tatsuo Ishii)

Fix bug child_max_connections is not respected if ERROR occurs. (Tatsuo Ishii)

Doc: fix usage of firewall-cmd in the installation tips section. (Tatsuo Ishii)

firewall-cmd opened unnecessary ports in the example.

Fix segfault that may occur when backend_flag = 'ALWAYS_PRIMARY|ALLOW_TO_FAILOVER' or failover_command = ''. (bug 672) (Tatsuo Ishii)

Fix file swapping race condition in pool_passwd. (Tatsuo Ishii)

Patch is provided by Masaya Kawamoto.

Doc: fix log_standby_delay description. (Tatsuo Ishii)