Bug 1202541

Summary:	Perf: Metadata operation performance on replicated volumes regressed on 3.0.4 builds.
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Ben Turner <bturner>
Component:	core	Assignee:	Krutika Dhananjay <kdhananj>
Status:	CLOSED ERRATA	QA Contact:	Ben Turner <bturner>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	rhgs-3.0	CC:	kdhananj, rcyriac, rhs-bugs, storage-qa-internal, vagarwal
Target Milestone:	---	Keywords:	ZStream
Target Release:	RHGS 3.0.4
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	glusterfs-3.6.0.53-1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1202669 (view as bug list)		Environment:
Last Closed:	2015-03-26 06:37:08 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:
Bug Depends On:
Bug Blocks:	1182947, 1202669, 1202673, 1202675, 1203122

Description Ben Turner 2015-03-16 20:41:08 UTC

Description of problem:

Metadata, specifically ls -l performance has been greatly reduced on replicated volumes with 3.0.4.  I do not see this perf hit on distributed volumes, and perf on replicated 3.0.3 volumes is good.

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

glusterfs-3.6.0.51

How reproducible:

Every time.

Steps to Reproduce:
1.  Create 10k files
2.  Clear buffers and cache on both servers and clients
3.  Run ls -l on files

Actual results:

Perf hit vs 3.0.3.

Expected results:

Perf within 10% of 3.0.3.

Additional info:

Comment 7 Ben Turner 2015-03-19 17:02:11 UTC

Verified on 3.6.0.53.

Comment 9 errata-xmlrpc 2015-03-26 06:37:08 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://rhn.redhat.com/errata/RHBA-2015-0682.html