Hi,<br><br>I've got a distributed/replicated GlusterFS v3.1.2 (installed via RPM) setup across two servers (web01 and web02) with the following vol config:<br><br><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data-client-0</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> type protocol/client</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> option remote-host web01</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> option remote-subvolume /var/glusterfs/bricks/shared</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> option transport-type tcp</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> option ping-timeout 5</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">end-volume</span><br style="font-family: comic sans ms,sans-serif;">
<br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data-client-1</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> type protocol/client</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> option remote-host web02</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> option remote-subvolume /var/glusterfs/bricks/shared</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> option transport-type tcp</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> option ping-timeout 5</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;">end-volume</span><br style="font-family: comic sans ms,sans-serif;"><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data-replicate-0</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> type cluster/replicate</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> subvolumes shared-application-data-client-0 shared-application-data-client-1</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;">end-volume</span><br style="font-family: comic sans ms,sans-serif;"><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data-write-behind</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> type performance/write-behind</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> subvolumes shared-application-data-replicate-0</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;">end-volume</span><br style="font-family: comic sans ms,sans-serif;"><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data-read-ahead</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> type performance/read-ahead</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> subvolumes shared-application-data-write-behind</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;">end-volume</span><br style="font-family: comic sans ms,sans-serif;"><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data-io-cache</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> type performance/io-cache</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> subvolumes shared-application-data-read-ahead</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;">end-volume</span><br style="font-family: comic sans ms,sans-serif;"><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data-quick-read</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> type performance/quick-read</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> subvolumes shared-application-data-io-cache</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;">end-volume</span><br style="font-family: comic sans ms,sans-serif;"><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data-stat-prefetch</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> type performance/stat-prefetch</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> subvolumes shared-application-data-quick-read</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;">end-volume</span><br style="font-family: comic sans ms,sans-serif;"><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;">volume shared-application-data</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;"> type debug/io-stats</span><br style="font-family: comic sans ms,sans-serif;"><span style="font-family: comic sans ms,sans-serif;"> subvolumes shared-application-data-stat-prefetch</span><br style="font-family: comic sans ms,sans-serif;">
<span style="font-family: comic sans ms,sans-serif;">end-volume</span><br><br>In total, four servers mount this via GlusterFS FUSE. For whatever reason (I'm really not sure why), the GlusterFS filesystem has run into a bit of split-brain nightmare (although to my knowledge an actual split brain situation has never occurred in this environment), and I have been getting solidly corrupted issues across the filesystem as well as complaints that the filesystem cannot be self-healed.<br>
<br>What I would like to do is completely empty one of the two servers (here I am trying to empty server web01), making the other one (in this case web02) the authoritative source for the data; and then have web01 completely rebuild it's mirror directly from web02.<br>
<br>What's the easiest/safest way to do this? Is there a command that I can run that will force web01 to re-initialize it's mirror directly from web02 (and thus completely eradicate all of the split-brain errors and data inconsistencies)?<br>
<br>Thanks!<br>-- <br><div>Remi Broemeling</div><div>System Administrator</div><span style="font-family:arial, sans-serif;font-size:13px;border-collapse:collapse"><div><font face="arial, helvetica, sans-serif">Clio - Practice Management Simplified</font></div>
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