Dear all,

We ran into severe problems with our recently installed gluster system, 
described below

Volume Name: GA01
Type: Distributed-Replicate
Volume ID: ba885c47-3b44-4e7b-b8f9-a4cc0959b7a3
Status: Started
Number of Bricks: 3 x 2 = 6
Transport-type: tcp
Bricks:
Brick1: c3
Brick2: c2
Brick3: n3
Brick4: n5
Brick5: n9
Brick6: n13

While I was on leave for 10 days, the machine n3 went down. All seemed fine 
(noone knew) but after  I came back and restarted the machine, the system went 
into a very bad state. A typical scenario would be creating a new directory, 
adding files to it and then doing an ls. Any files that were physically started 
on the n3/n5 pair would not appear (though if you explicitly listed it eg. ls 
newdir/evec2gp.py it would appear and you could use it). I tried running heal 
several times, shutting down all cluster daemons in the system, remounting 
bricks, remounting the gluster system, etc. I could restart the n3 machine but 
I can't restart other machines because it's in production. This happens 
reproducibly, not just with files that were created while n3 was down but even 
now.

We are running gluster 3.3.1. The underlying bricks are formatted as ext3 (not 
ext4).  The n machines run SL6.3 and the c machines run Ubuntu 12.04 (there are 
constraints that require this). Could the use of different OS cause a problem?

At this point, I prepared to copy all files off the gluster volume and 
completely reformat the underlying file systems and recreate the gluster 
volumes from scratch. However, I am concerned since we need to rely on the 
system.

Any suggestions

Thanks

Scott


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