Bug 1322624

Summary:	Disk usage command du with -s option, reporting sum of usage in current directory, too slow, does not scale (43+ min) on glusterfs
Product:	Red Hat Gluster Storage	Reporter:	Diane Feddema <dfeddema>
Component:	core	Assignee:	Pranith Kumar K <pkarampu>
Status:	CLOSED WORKSFORME	QA Contact:	Ambarish <asoman>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	rhgs-3.0	CC:	asoman, atumball, bturner, pkarampu, rhs-bugs
Target Milestone:	---	Keywords:	ZStream
Target Release:	---	Flags:	asoman: needinfo+
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-02-07 05:48:31 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:

Description Diane Feddema 2016-03-30 22:33:52 UTC

Description of problem:
Disk usage command, "du -sh /glusterfs/users/dfeddema/perf10" 40 times slower
with glusterfs than XFS filesystem for same directory contents.

$ time du -sh /glusterfs/users/dfeddema/perf10
96G    /glusterfs/users/dfeddema/perf10

real    43m24.491s
user    0m13.700s
sys    1m16.336s

Version-Release number of selected component (if applicable):
$ glusterfs --version
glusterfs 3.6.2 built on Jan 22 2015 12:59:55



How reproducible:  100%


Steps to Reproduce:
1. install glusterfs 3.6.2
2. create 90+ GB directory with 128 sub-directories and 4949914 files.
3. run "du -sh glusterfs_directory"

Actual results:


Expected results:


Additional info:

Comment 8 Amar Tumballi 2018-02-07 05:48:31 UTC

Thank you for your bug report.

We are no longer releasing any bug fixes or, any other updates for this version. But this particular performance issue of readdir has been improved in the higher versions. This bug will be set to CLOSED WORKSFORME to reflect this. Please reopen if the problem continues to be observed after upgrading to a latest version.