[pgpool-committers: 8079] pgpool: Enhance SIGHLD handler of Pgpool-II main process.

[Tatsuo Ishii]

Enhance SIGHLD handler of Pgpool-II main process.

When Pgpool-II child is killed by SIGKILL signal, the SIGHLD handler
just emitted LOG level message as other signals.  But SIGKILL is an
important event, for example killed by OOM killer. So emit a WARNING
level message instead.

Per suggestion from Michail Alexakis.
Discussion: https://www.pgpool.net/pipermail/pgpool-general/2021-October/007808.html

Branch
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V4_0_STABLE

Details
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https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=ca7e6f802e51e33bf0b8e60d6b7b890865d45994

Modified Files
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src/main/pgpool_main.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)