[Gluster-users] 3.2.1 - sometimes network outages

Burnash, James jburnash at knight.com
Wed Jul 13 12:43:37 UTC 2011

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
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:

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.


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