Bug 1388711

Summary:	Needs more testings of rebalance for the distributed-dispersed volume
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	tsugano
Component:	disperse	Assignee:	Atin Mukherjee <amukherj>
Status:	CLOSED ERRATA	QA Contact:	Nag Pavan Chilakam <nchilaka>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	rhgs-3.1	CC:	amukherj, asoman, bturner, nchilaka, rhinduja, rhs-bugs, storage-qa-internal
Target Milestone:	---	Flags:	rhinduja: needinfo+
Target Release:	RHGS 3.2.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-03-23 06:14:55 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:	1351528

Description tsugano 2016-10-26 01:37:18 UTC

Description of problem:
For an over peta-byte deployment, the product team encouraged us to use the distributed-replicated volume over the dist-dispersed one as they need more rebalance testings with the latter for large-scale deployments. However, we think the dist-dispersed would be best fit for our target use cases, a storage for video streaming, for example.

Version-Release number of selected component (if applicable):
3.2

How reproducible:
Configure an over PB volume, extend its size by adding nodes and then trigger rebalance.

Steps to Reproduce:
1.
2.
3.

Actual results:
The distributed-replicated volume is recommended.

Expected results:
We can choose the distributed-dispersed volume as well.

Additional info:

Comment 2 Pranith Kumar K 2016-10-26 01:48:44 UTC

Ben, Ambarish,
     I am aware that one of you are doing the ec perf work with rebalance. Not sure which one it is. Could you take a look at this bug? For now adding needinfo on Ben.

Comment 11 Nag Pavan Chilakam 2017-02-14 07:04:48 UTC

We have done an extensive testing approach to EC with rebalance and other interops too.
below is a testplan on what all were covered
http://etherpad.corp.redhat.com/3-2-ec-rebalance-plan
There were a good number of BZs reported ,which are mentioned in the above doc, which are being tracked seperately

Hence moving to verified

Comment 13 errata-xmlrpc 2017-03-23 06:14:55 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/RHSA-2017-0486.html