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[Lajos Katona <2080199@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Neutron functional jobs started to fail with "Too many open files", example:
https://14d65eceddbce78ddf51-8bfb5d70b83a273fa97d15d51d14f1ae.ssl.cf1.rackcdn.com/periodic/opendev.org/openstack/neutron/master/neutron-functional-with-pyroute2-master/82341c6/testr_results.html

Opensearch query:
https://opensearch.logs.openstack.org/_dashboards/app/data-explorer/discover/?security_tenant=global#?_a=(discover:(columns:!(build_name),interval:auto,sort:!()),metadata:(indexPattern:'94869730-aea8-11ec-9e6a-83741af3fdcd',view:discover))&_q=(filters:!(),query:(language:kuery,query:'%20message:%22Too%20many%20open%20files%22'))&_g=(filters:!(),refreshInterval:(pause:!t,value:0),time:(from:now-30d,to:now))

As I see from the job-output.txt the ulimit number is set to 2024:
2024-09-07 02:22:28.005219 | controller | +++ stackrc:source:935            : ULIMIT_NOFILE=2048

** Affects: neutron
     Importance: Undecided
         Status: New


** Tags: functional-tests

** Description changed:

- Neutron functional jobs started to fail with "Too many open files", exacmple:
+ Neutron functional jobs started to fail with "Too many open files", example:
  https://14d65eceddbce78ddf51-8bfb5d70b83a273fa97d15d51d14f1ae.ssl.cf1.rackcdn.com/periodic/opendev.org/openstack/neutron/master/neutron-functional-with-pyroute2-master/82341c6/testr_results.html
  
  Opensearch query:
  https://opensearch.logs.openstack.org/_dashboards/app/data-explorer/discover/?security_tenant=global#?_a=(discover:(columns:!(build_name),interval:auto,sort:!()),metadata:(indexPattern:'94869730-aea8-11ec-9e6a-83741af3fdcd',view:discover))&_q=(filters:!(),query:(language:kuery,query:'%20message:%22Too%20many%20open%20files%22'))&_g=(filters:!(),refreshInterval:(pause:!t,value:0),time:(from:now-30d,to:now))
  
  As I see from the job-output.txt the ulimit number is set to 2024:
  2024-09-07 02:22:28.005219 | controller | +++ stackrc:source:935            : ULIMIT_NOFILE=2048

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https://bugs.launchpad.net/bugs/2080199

Title:
  Functional jobs failing with "Too many open files"

Status in neutron:
  New

Bug description:
  Neutron functional jobs started to fail with "Too many open files", example:
  https://14d65eceddbce78ddf51-8bfb5d70b83a273fa97d15d51d14f1ae.ssl.cf1.rackcdn.com/periodic/opendev.org/openstack/neutron/master/neutron-functional-with-pyroute2-master/82341c6/testr_results.html

  Opensearch query:
  https://opensearch.logs.openstack.org/_dashboards/app/data-explorer/discover/?security_tenant=global#?_a=(discover:(columns:!(build_name),interval:auto,sort:!()),metadata:(indexPattern:'94869730-aea8-11ec-9e6a-83741af3fdcd',view:discover))&_q=(filters:!(),query:(language:kuery,query:'%20message:%22Too%20many%20open%20files%22'))&_g=(filters:!(),refreshInterval:(pause:!t,value:0),time:(from:now-30d,to:now))

  As I see from the job-output.txt the ulimit number is set to 2024:
  2024-09-07 02:22:28.005219 | controller | +++ stackrc:source:935            : ULIMIT_NOFILE=2048

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