Hello, We have PostgreSQL under pacemaker/corosync management and sometimes we catch problem like this: Dec 9 18:51:15 prod-inside-tvh-pgsql1 lrmd[13405]: notice: pgsql_monitor_8000:34884:stderr [ /usr/lib/ocf/lib/heartbeat/ocf-shellfuncs: fork: Cannot allocate memory ] Dec 9 18:51:15 prod-inside-tvh-pgsql1 crmd[13409]: notice: prod-inside-tvh-pgsql1-pgsql_monitor_8000:13 [ /usr/lib/ocf/lib/heartbeat/ocf-shellfuncs: fork: Cannot allocate memory\n ] Dec 9 18:51:15 prod-inside-tvh-pgsql1 crmd[13409]: notice: Result of notify operation for pgsql on prod-inside-tvh-pgsql1: 0 (ok) Dec 9 18:51:15 prod-inside-tvh-pgsql1 crmd[13409]: notice: prod-inside-tvh-pgsql1-pgsql_monitor_8000:13 [ /usr/lib/ocf/lib/heartbeat/ocf-shellfuncs: fork: Cannot allocate memory\n ] Dec 9 18:51:15 prod-inside-tvh-pgsql1 pgsql(pgsql)[35130]: INFO: stop_escalate(or stop_escalate_in_slave) time is adjusted to 50 based on the configured timeout. Dec 9 18:51:15 prod-inside-tvh-pgsql1 pgsql(pgsql)[35130]: INFO: server shutting down Dec 9 18:51:17 prod-inside-tvh-pgsql1 pgsql(pgsql)[35130]: INFO: PostgreSQL is down Dec 9 18:51:17 prod-inside-tvh-pgsql1 pgsql(pgsql)[35130]: INFO: Changing pgsql-status on prod-inside-tvh-pgsql1 : HS:async->STOP. Dec 9 18:51:17 prod-inside-tvh-pgsql1 crmd[13409]: notice: Result of stop operation for pgsql on prod-inside-tvh-pgsql1: 0 (ok)
Main - "/usr/lib/ocf/lib/heartbeat/ocf-shellfuncs: fork: Cannot allocate memory". But memory is always enough. This is virtual machine with Linux 4.14.35-1818.4.7.el7uek.x86_64 and pacemaker 1.1.19-8.el7_6.4 corosync 2.4.3-4.el7 (all from linux repository). Please, help us to resolve this problem with "Cannot allocate memory". May be we need some additional settings on OS or upgrade to fresh pacemaker/corosync version where this issue resolved or some other? -- WBR, Andrey Larionov
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