"Brandl, Wolfgang" <wolfgang.brandl@xxxxxxxxx> writes: > Hi > We are testing > restart_after_crash = on > > What is a cras? We killed the Postgres process with -9 SIGSEGV SIGABRT etc.. But never postgres is restarting. > > The question arose because of the decision to restart Postgres over systemctl or with the Postgres feature. > > But it seems that the Postgres restart is not working or not always working. Or is an additional feature necessary? It is for a postmaster controlled kill of all backends after a *backend* crash. Killing postmaster itself as you are doing does not invoke the feature. Try choosing any client backend by PID and then do your kill -9 on that one. Then expect any other backends to be killed also but the postmaster still working and then spawning more backend when clients attempt to connect. > > Regards > Wolfgang -- Jerry Sievers Postgres DBA/Development Consulting e: postgres.consulting@xxxxxxxxxxx p: 312.241.7800