24419491457
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Ran 14 Apr 2026 07:53PM UTC

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Build # 24419491457

Build Type

push

github

Committed by

mpasternak

Commit Message

fix(dbserver): respect cgroup memory limit in autotune.py and bump default RAM share to 95%

/proc/meminfo always reports host RAM, not the container's cgroup
limit, so under docker-compose with mem_limit autotune.py would size
shared_buffers/effective_cache_size against the host and Postgres would
get OOM-killed. Detect cgroup v2 (memory.max) and v1 (limit_in_bytes,
guarding the unlimited sentinel) and prefer the cgroup limit when it is
smaller than host RAM. With the limit now correctly enforced, raise the
POSTGRESQL_RAM_PERCENT default from 0.5 to 0.95 since the dbserver
container is dedicated to Postgres.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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