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BUG/MINOR: mworker/init: don't reset nb_oldpids in non-mworker cases

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This bug affects the peers synchronisation code which rely on the
nb_oldpids variable to synchronize the peer from the old PID.

In the case the process is not started in master-worker mode and tries
to synchronize using the peers, there is a small chance that won't work
because nb_oldpids equals 0.

Fix the bug by setting the variable to 0 only in the case of the
master-worker when not reloaded.

It could also be a problem when trying to synchronize the peers between
2 masters process which should be fixed in another patch.

Bug exists since commit 8a361b5 ("BUG/MEDIUM: mworker: don't reuse PIDs
passed to the master").

Sould be backported as far as 1.8.
This commit is contained in:
William Lallemand 2021-04-21 16:42:18 +02:00
parent a2944ecf5d
commit ea6bf83d62
1 changed files with 1 additions and 1 deletions
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2
src/haproxy.c
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@ -2817,7 +2817,7 @@ int main(int argc, char **argv)
if ((global.mode & MODE_MWORKER) && !(global.mode & MODE_MWORKER_WAIT))
mworker_kill_max_reloads(SIGTERM);
if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
nb_oldpids = 0;
ha_free(&oldpids);
}