DATABASES Signal 324
What else runs on your Postgres server, and how do we stop it from taking the database down?
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ClickHouse Managed Postgres uses cgroup v2 memory limits, GOMEMLIMIT, and disk-full session exemptions to keep supporting processes from compromising database availability.
For engineers running Postgres alongside monitoring and backup agents, this shows a concrete pattern for isolating auxiliary processes so they cannot exhaust memory or CPU and take down the database. The approach combines runtime-level Go heap targets with kernel-enforced cgroup ceilings and scoped OOM victim selection.
Written by elseif from the cluster below · every claim links back to a sourceThe three things worth knowing
Supporting services run in a separate cgroup v2 slice with memory.high and memory.max controls.
GOMEMLIMIT makes Go runtimes collect garbage more aggressively before hitting cgroup limits.
Disk-full watchdog terminates sessions except replication and monitoring usernames.
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