Bug 1578277

Summary:	Disable choose-local in groups virt for RHHI workloads
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	SATHEESARAN <sasundar>
Component:	rhhi	Assignee:	Sahina Bose <sabose>
Status:	CLOSED ERRATA	QA Contact:	SATHEESARAN <sasundar>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	rhhi-1.1	CC:	amukherj, bugs, kdhananj, mpillai, rhs-bugs, sabose, sankarshan, smohan, storage-qa-internal, vbellur, vdas
Target Milestone:	---
Target Release:	RHHI-V 1.5
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	glusterfs-server-3.12.2-10	Doc Type:	Bug Fix
Doc Text:	Previously, read requests were served from the local replica where possible because the cluster.choose-local option was enabled. This option has now been disabled, improving read performance by ensuring that read requests are distributed across all replicas.	Story Points:	---
Clone Of:	1568297	Environment:
Last Closed:	2018-11-08 05:39:18 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:	1568297
Bug Blocks:	1520836

Description SATHEESARAN 2018-05-15 07:40:35 UTC

Description of problem:
------------------------

Sometime back when I was working on improving gluster performance for hyperconverged vm store workload, I'd seen ~6-8K iops improvement with random read fio test (run from 3 vms hosted on gluster volume).

Even Manoj (cc'd) reported better performance on gluster-block with choose-local disabled.

We're proposing to disable the option in groups virt and gluster-block in light of the above.

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


How reproducible:


Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

--- Additional comment from Krutika Dhananjay on 2018-04-12 04:28:28 EDT ---

Some data - http://post-office.corp.redhat.com/archives/rhgs-devel/2017-August/msg00065.html

--- Additional comment from Worker Ant on 2018-04-12 04:30:28 EDT ---

REVIEW: https://review.gluster.org/19855 (extras: Disable choose-local in groups virt and gluster-block) posted (#1) for review on master by Krutika Dhananjay

--- Additional comment from Worker Ant on 2018-04-13 06:23:30 EDT ---

COMMIT: https://review.gluster.org/19855 committed in master by "Pranith Kumar Karampuri" <pkarampu> with a commit message- extras: Disable choose-local in groups virt and gluster-block

Change-Id: Icba68406d86623195d59d6ee668e0850c037c63a
fixes: bz#1566386
Signed-off-by: Krutika Dhananjay <kdhananj>

--- Additional comment from Red Hat Bugzilla Rules Engine on 2018-04-17 03:51:42 EDT ---

This bug is automatically being proposed for the release of Red Hat Gluster Storage 3 under active development and open for bug fixes, by setting the release flag 'rhgs‑3.4.0' to '?'. 

If this bug should be proposed for a different release, please manually change the proposed release flag.

--- Additional comment from Krutika Dhananjay on 2018-04-17 13:12:31 EDT ---

Posted https://code.engineering.redhat.com/gerrit/#/c/135960/1 with a -1 until all acks are provided.

--- Additional comment from Red Hat Bugzilla Rules Engine on 2018-05-15 02:43:48 EDT ---

This bug is automatically being provided 'pm_ack+' for the release flag 'rhgs‑3.4.0', having been appropriately marked for the release, and having been provided ACK from Development and QE

Comment 1 SATHEESARAN 2018-05-16 08:59:11 UTC

The glusterfs build carries the fix for this bug, and moving this bug ON_QA

Comment 5 SATHEESARAN 2018-05-16 10:24:51 UTC

Tested with glusterfs-3.12.2-10.el7rhgs, choose-local is turned 'off'

Comment 9 errata-xmlrpc 2018-11-08 05:39:18 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://access.redhat.com/errata/RHEA-2018:3523