Bug 1388711

Summary: Needs more testings of rebalance for the distributed-dispersed volume
Product: Red Hat Gluster Storage Reporter: tsugano
Component: disperseAssignee: Atin Mukherjee <amukherj>
Status: CLOSED ERRATA QA Contact: nchilaka <nchilaka>
Severity: high Docs Contact:
Priority: unspecified    
Version: rhgs-3.1CC: amukherj, asoman, bturner, nchilaka, rhinduja, rhs-bugs, storage-qa-internal
Target Milestone: ---Flags: amukherj: needinfo? (bturner)
rhinduja: needinfo+
Target Release: RHGS 3.2.0   
Hardware: Unspecified   
OS: Unspecified   
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: ---
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):

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

Steps to Reproduce:

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 nchilaka 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
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.