May 01 04:59:58 host01.dc.local pgpool[28097]: [827-1] 2019-05-01 04:59:58: pid 28097: FATAL:  pgpool is not accepting any new connections
May 01 04:59:58 host01.dc.local pgpool[28097]: [827-2] 2019-05-01 04:59:58: pid 28097: DETAIL:  all backend nodes are down, pgpool requires at least one valid node
May 01 04:59:58 host01.dc.local pgpool[28097]: [827-3] 2019-05-01 04:59:58: pid 28097: HINT:  repair the backend nodes and restart pgpool
May 01 04:59:58 host01.dc.local pgpool[24048]: [830-1] 2019-05-01 04:59:58: pid 24048: LOG:  child process with pid: 28097 exits with status 256
May 01 04:59:58 host01.dc.local pgpool[24048]: [831-1] 2019-05-01 04:59:58: pid 24048: LOG:  fork a new child process with pid: 28317
May 01 05:00:01 host01.dc.local systemd[1]: Started Session 25175 of user root.
May 01 05:00:01 host01.dc.local systemd[1]: Starting Session 25175 of user root.
May 01 05:00:01 host01.dc.local CROND[28356]: (root) CMD (/usr/lib64/sa/sa1 1 1)
May 01 05:00:31 host01.dc.local pgpool[28317]: [831-1] 2019-05-01 05:00:31: pid 28317: FATAL:  pgpool is not accepting any new connections
May 01 05:00:31 host01.dc.local pgpool[28317]: [831-2] 2019-05-01 05:00:31: pid 28317: DETAIL:  all backend nodes are down, pgpool requires at least one valid node
May 01 05:00:31 host01.dc.local pgpool[28317]: [831-3] 2019-05-01 05:00:31: pid 28317: HINT:  repair the backend nodes and restart pgpool
May 01 05:00:31 host01.dc.local pgpool[24048]: [832-1] 2019-05-01 05:00:31: pid 24048: LOG:  child process with pid: 28317 exits with status 256
May 01 05:00:31 host01.dc.local pgpool[24048]: [833-1] 2019-05-01 05:00:31: pid 24048: LOG:  fork a new child process with pid: 28418
May 01 05:00:46 host01.dc.local sshd[28437]: Connection closed by 172.16.22.11 port 56966 [preauth]
May 01 05:01:01 host01.dc.local systemd[1]: Started Session 25176 of user root.
May 01 05:01:01 host01.dc.local systemd[1]: Starting Session 25176 of user root.
May 01 05:01:01 host01.dc.local CROND[28539]: (root) CMD (run-parts /etc/cron.hourly)
May 01 05:01:01 host01.dc.local run-parts(/etc/cron.hourly)[28542]: starting 0anacron
May 01 05:01:01 host01.dc.local run-parts(/etc/cron.hourly)[28548]: finished 0anacron
May 01 05:01:38 host01.dc.local pgpool[27529]: [817-1] 2019-05-01 05:01:38: pid 27529: FATAL:  pgpool is not accepting any new connections
May 01 05:01:38 host01.dc.local pgpool[27529]: [817-2] 2019-05-01 05:01:38: pid 27529: DETAIL:  all backend nodes are down, pgpool requires at least one valid node
May 01 05:01:38 host01.dc.local pgpool[27529]: [817-3] 2019-05-01 05:01:38: pid 27529: HINT:  repair the backend nodes and restart pgpool
May 01 05:01:38 host01.dc.local pgpool[24048]: [834-1] 2019-05-01 05:01:38: pid 24048: LOG:  child process with pid: 27529 exits with status 256
May 01 05:01:38 host01.dc.local pgpool[24048]: [835-1] 2019-05-01 05:01:38: pid 24048: LOG:  fork a new child process with pid: 28613