Bug 1381968 – md-cache: Invalidate cache entry in case of OPEN with O_TRUNC

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Bug 1381968 - md-cache: Invalidate cache entry in case of OPEN with O_TRUNC

Summary:	md-cache: Invalidate cache entry in case of OPEN with O_TRUNC

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Gluster Storage
Classification:	Red Hat
Component:	md-cache (Show other bugs)
Sub Component:
Version:	3.2
Hardware:	All All

Priority	unspecified Severity medium
Target Milestone:	---
Target Release:	RHGS 3.2.0
Assigned To:	Soumya Koduri
QA Contact:	surabhi
Docs Contact:

URL:
Whiteboard:
Keywords:	Triaged

Depends On:	1382266 1391448 1391450 1391451
Blocks:	1351528 1380742
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Reported:	2016-10-05 08:49 EDT by Soumya Koduri
Modified:	2017-03-23 02:08 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:	glusterfs-3.8.4-4
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-03-23 02:08:18 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:0486	normal	SHIPPED_LIVE	Moderate: Red Hat Gluster Storage 3.2.0 security, bug fix, and enhancement update	2017-03-23 05:18:45 EDT

Groups: None (edit)

Description Soumya Koduri 2016-10-05 08:49:54 EDT

Description of problem:


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Comment 2 Soumya Koduri 2016-10-05 08:52:16 EDT

Sorry. By mistake the bug got filed before I filled up description. 

Description of problem:

In case if there is open() done on a file with O_TRUNC posix flag passed, the backend server truncates the file, resulting in change of size of the file. This case needs to be handled by md-cache and should invalidate its cache-entry accordingly.

Comment 3 Soumya Koduri 2016-10-06 03:48:22 EDT

Patch posted upstream for review - 

http://review.gluster.org/15618

Comment 8 surabhi 2016-11-23 07:06:39 EST

As discussed with Soumya, executed pynfs test suite with latest build and the OPEN test is passed without any issues.

Moving the BZ to verified.

Comment 10 errata-xmlrpc 2017-03-23 02:08:18 EDT

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

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