Files
neutron/releasenotes/notes/haproxy-nbthread-a658040c98639b47.yaml
Miro Tomaska 0a044ce384 Set haproxy nbthread[1] to 2
The haproxy that gets spawned by agents can cause `too many open files`
exceptions on very large deployments. Since haproxy is not resource
intensive process, we can limit it to only use 2 threads to mitigate
this issue.

[1] www.haproxy.com/documentation/haproxy-configuration-manual/latest/#nbthread
Closes-bug: #2120668
Change-Id: I70b2461d65f3e9967bea1239eac3c1ccb52b3138
Signed-off-by: Miro Tomaska <mtomaska@redhat.com>
2025-08-28 10:51:04 -04:00

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YAML

---
fixes:
- |
Limit the number of threads used by the metadata haproxy service to 2 using
the nbthread configuration. This prevents haproxy from spreading across many
threads when the process lacks other restrictions like CPU affinity.
For more information, see bug
`2120668 <https://bugs.launchpad.net/neutron/+bug/2120668>`_.