Bug 850011 – Caching improvements for virtual machine image store

Bug 850011 - Caching improvements for virtual machine image store

Summary:	Caching improvements for virtual machine image store

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	GlusterFS
Classification:	Community
Component:	core (Show other bugs)
Sub Component:
Version:	mainline
Hardware:	Unspecified Unspecified

Priority	medium Severity unspecified
Target Milestone:	---
Target Release:	---
Assigned To:	shishir gowda
QA Contact:
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URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	856465
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Reported:	2012-08-21 09:13 EDT by Vidya Sakar
Modified:	2013-12-08 20:33 EST (History)
CC List:	4 users (show)

See Also:
Fixed In Version:	glusterfs-3.4.0
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Clones:	856465 (view as bug list)
Environment:
Last Closed:	2013-07-24 14:03:11 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Vidya Sakar 2012-08-21 09:13:54 EDT

Placeholder BZ for caching improvements we could do to improve virtual machine image store performance.

Comment 1 Amar Tumballi 2012-12-24 04:34:50 EST

The below changes are been done:

* a gluster volume set <> group virt (which would disable not required xlators)
* better re-structuring of write-behind
* a way to handle O_DIRECT separately in write-behind and in client protocol.
* proper mtime update in distribute translator so the caching based on mtime in application is not invalidated.

All other caching is done by guest at the moment.

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