[Gluster-users] 3.2.1 - sometimes network outages

Burnash, James jburnash at knight.com
Wed Jul 13 13:46:26 UTC 2011

Hi Christopher.

Given that RedHat/CentOS follow their own kernel numbering, it's hard to compare directly ... I guess if you look at the release dates for your version and CentOS 5.5 it might give you some idea if they are from the same time period, perhaps ...

James Burnash
Unix Engineer
Knight Capital Group

-----Original Message-----
From: Christopher Anderlik [mailto:christopher.anderlik at xidras.com] 
Sent: Wednesday, July 13, 2011 9:37 AM
To: Burnash, James
Cc: gluster-users at gluster.org
Subject: Re: [Gluster-users] 3.2.1 - sometimes network outages

hi james,

thx for your feedback.

I found your post:

we are running suse linux enterprise 11.0 (64bit) kernel

I don't know if this could be a similar problem...?


Am 13.07.2011 14:43, schrieb Burnash, James:
> HI Christopher.
> What version of Linux are you running? If it's CentOS/RedHat 5.5, you may be seeing the bug that I referred to in the attached post to the list, subject:
> [Gluster-users] CentOS 5.5 kernel bugs can cause temporary hangs upon 
> client access to GlusterFS
> James Burnash
> Unix Engineer
> Knight Capital Group
> -----Original Message-----
> From: gluster-users-bounces at gluster.org 
> [mailto:gluster-users-bounces at gluster.org] On Behalf Of Christopher 
> Anderlik
> Sent: Wednesday, July 13, 2011 3:29 AM
> To: gluster-users at gluster.org
> Subject: [Gluster-users] 3.2.1 - sometimes network outages
> hi list,
> we use glusterfs 3.2.1 with this configuration (one server - one client):
> Volume Name: office-data
> Type: Replicate
> Status: Started
> Number of Bricks: 1
> Transport-type: tcp
> Bricks:
> Brick1: gfs-01-01:/GFS/office-data02
> Options Reconfigured:
> performance.cache-size: 512MB
> performance.quick-read: off
> we "sometimes" noticed network outages from glusterfs - so for some seconds/minutes the client is not able to access the mounted glusterfs-share.
> please see the picture enclosed ore here:
> http://www.xidrasservice.com/gfs-network.JPG
> there are no entries in client- or server-log.
> everyhting else works fine - so there is no general network problem.
> do you have any idea, what this might be?
> what can we check else?
> every help would be appreciated.
> thx!!
> christopher
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