Add logging for excessive ProcSignalBarrier waits. To enable diagnosis of systems that are not processing ProcSignalBarrier requests promptly, add a LOG message every 5 seconds if we seem to be wedged. Although you could already see this state as a wait event in pg_stat_activity, the log message also shows the PID of the process that is preventing progress.
Also add DEBUG1 logging around the whole wait loop. Reviewed-by: Robert Haas <robertmh...@gmail.com> Discussion: https://postgr.es/m/CA%2BTgmoYJ03r5359gQutRGP9BtigYCg3_UskcmnVjBf-QO3-0pQ%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/0d3431497dbe91ba1e428ace4e9537c109eaff07 Modified Files -------------- src/backend/storage/ipc/procsignal.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-)
