Fix autovacuum launcher shutdown sequence It was previously possible to have the launcher re-execute its main loop before shutting down if some other signal was received or an error occurred after getting SIGTERM, as reported by Qingqing Zhou. While investigating, Tom Lane further noticed that if autovacuum had been disabled in the config file, it would misbehave by trying to start a new worker instead of bailing out immediately -- it would consider itself as invoked in emergency mode. Fix both problems by checking the shutdown flag in a few more places. These problems have existed since autovacuum was introduced, so backpatch all the way back. Branch ------ REL9_3_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/0d6c9e061b8b089c7130b1daa4f67219fca8491f Modified Files -------------- src/backend/postmaster/autovacuum.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-)
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