Bug 1729552

Summary: [OSP14] set default ulimit to nova_libvirt
Product: Red Hat OpenStack Reporter: Martin Schuppert <mschuppe>
Component: openstack-tripleo-heat-templatesAssignee: Martin Schuppert <mschuppe>
Status: CLOSED ERRATA QA Contact: James Parker <jparker>
Severity: high Docs Contact:
Priority: high    
Version: 13.0 (Queens)CC: amodi, emacchi, jhakimra, jparker, mbooth, mburns, mzheng, tvignaud
Target Milestone: z4Keywords: TestOnly, Triaged, ZStream
Target Release: 14.0 (Rocky)   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: openstack-tripleo-heat-templates-9.3.1-0.20190513171753.el7ost Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of: 1728447
: 1729553 (view as bug list) Environment:
Last Closed: 2019-11-06 16:48:30 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1728447    
Bug Blocks: 1729553    

Description Martin Schuppert 2019-07-12 15:27:39 UTC 
+++ This bug was initially created as a clone of Bug #1728447 +++

Description of problem:
There is an issue in DPDK node as below because of high ulimit in nova_libvirt container and libvirt behavior when closing FD. 
https://bugzilla.redhat.com/show_bug.cgi?id=1721434

Please also consider to set default ulimit for nova_libvirt in heat template file. I can see a patch is provided in upstream, is it possible to include this to downstream version?
https://review.opendev.org/#/c/668416/

Current workaround is in BZ#1721434 comment#59. 


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Comment 4 Lon Hohberger 2019-09-04 10:43:34 UTC 
According to our records, this should be resolved by openstack-tripleo-heat-templates-9.3.1-0.20190513171752.el7ost.  This build is available now.
Comment 5 James Parker 2019-09-13 20:11:16 UTC 
Version Checked:
(undercloud) [stack@undercloud-0 ~]$ rpm -qa | grep heat-templates
openstack-tripleo-heat-templates-9.3.1-0.20190513171752.el7ost.noarch

nova_compute appears to have the updated default of 131072 units, but nova_libvirt does not:

[heat-admin@compute-0 ~]$ sudo docker exec -it nova_compute prlimit | grep NOFILE
NOFILE     max number of open files              131072    131072 
[heat-admin@compute-0 ~]$ sudo docker exec -it nova_libvirt prlimit | grep NOFILE
NOFILE     max number of open files             1048576   1048576
Comment 10 errata-xmlrpc 2019-11-06 16:48:30 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:3745