Bug 1572087

Summary:	Redundant synchronization in rename codepath for a single subvolume DHT
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Raghavendra G <rgowdapp>
Component:	distribute	Assignee:	Raghavendra G <rgowdapp>
Status:	CLOSED ERRATA	QA Contact:	Sachin P Mali <smali>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rhgs-3.3	CC:	bugs, ksandha, nbalacha, rhinduja, rhs-bugs, sankarshan, smali, storage-qa-internal
Target Milestone:	---
Target Release:	RHGS 3.4.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	glusterfs-3.12.2-9	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1563511	Environment:
Last Closed:	2018-09-04 06:47:18 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:	1563511
Bug Blocks:	1503137, 1563513

Description Raghavendra G 2018-04-26 07:37:03 UTC

+++ This bug was initially created as a clone of Bug #1563511 +++

Description of problem:
No synchronization is needed for a single subvolume DHT in most of the fops and DHT can act as pass through. One important codepath is rename as synchronization cost is high.

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 Worker Ant on 2018-04-04 00:37:04 EDT ---

REVIEW: https://review.gluster.org/19817 (cluster/dht: act as passthrough for renames on single child DHT) posted (#1) for review on master by Raghavendra G

--- Additional comment from Worker Ant on 2018-04-09 22:24:19 EDT ---

COMMIT: https://review.gluster.org/19817 committed in master by "Raghavendra G" <rgowdapp> with a commit message- cluster/dht: act as passthrough for renames on single child DHT

Various synchronization present in dht_rename while handling
directories and files is necessary only if we have more than only one
child.

Change-Id: Ie21ad419125504ca2f391b1ae2e5c1d166fee247
fixes: bz#1563511
Signed-off-by: Raghavendra G <rgowdapp>

Comment 12 errata-xmlrpc 2018-09-04 06:47:18 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/RHSA-2018:2607