Bug 1188659

Summary:	pcsd status detection is slow
Product:	Red Hat Enterprise Linux 7	Reporter:	Radek Steiger <rsteiger>
Component:	pcs	Assignee:	Chris Feist <cfeist>
Status:	CLOSED DUPLICATE	QA Contact:	cluster-qe <cluster-qe>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	7.1	CC:	cluster-maint, tojeline
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-04-20 10:41:25 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Radek Steiger 2015-02-03 13:45:17 UTC

> Description of problem:

The pcs status output is getting out slowly with a higher number of nodes in the cluster, taking as long as 5 seconds on a 16-node clustere. This is because pcs is checking the states linearly one node after another. We could parallelize this process to make it significantly faster.


> Version-Release number of selected component (if applicable):

pcs-0.9.137-13.el7


> Results:

[root@virt-016 ~]# time pcs status pcsd virt-017
  virt-017: Online
real	0m0.633s
user	0m0.322s
sys	0m0.075s

[root@virt-016 ~]# time pcs status pcsd virt-03{0..5}
  virt-030: Online
  virt-031: Online
  virt-032: Online
  virt-033: Online
  virt-034: Online
  virt-035: Online
real	0m1.778s
user	0m0.345s
sys	0m0.072s

[root@virt-016 ~]# time pcs status pcsd
  virt-016: Online
  virt-017: Online
  virt-018: Online
  virt-023: Online
  virt-024: Online
  virt-027: Online
  virt-028: Online
  virt-029: Online
  virt-030: Online
  virt-031: Online
  virt-032: Online
  virt-033: Online
  virt-034: Online
  virt-035: Online
  virt-036: Online
  virt-037: Online
real	0m6.032s
user	0m0.478s
sys	0m0.084s

Comment 2 Tomas Jelinek 2015-04-20 10:41:25 UTC


*** This bug has been marked as a duplicate of bug 1207405 ***