[pgpool-committers: 2007] pgpool: Fix pgpool.init's long-standing bug of stop/restart failure

[Yugo Nagata]

Fix pgpool.init's long-standing bug of stop/restart failure

In previous, pgpool.init uses killproc for stopping pgpool, but there are
several problems; (1) some child processes can be left since the parent
process restarts killed processes; (2) when pgpool has connection from
clients, pgpool can't stop until connection closed; (3) restart() fails
for these reasons.

In the new version, "pgpool -m fast stop" is used in stop(). The problems
above are resolved and restart() also works well, even when watchdog enabled.
In addition, exit code according with LSB is considered, try-restart
option is implemented, and the old switch option is removed.

Original patch contributed by Ryan DeShone and modified by Yugo Nagata.

See [pgpool-hackers: 239][pgpool-hackers: 512].

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=e958833aaedcd9c20c3bb257063da7aaea2579f0

Modified Files
--------------
src/redhat/pgpool.init |  121 +++++++++++++++++++++++++-----------------------
1 file changed, 63 insertions(+), 58 deletions(-)