[ovirt-users] ovirt 3.6.6 and gluster 3.7.13

[David Gossage]

Anyone running one of recent 3.6.x lines and gluster using 3.7.13?  I am
looking to upgrade gluster from 3.7.11->3.7.13 for some bug fixes, but have
been told by users on gluster mail list due to some gluster changes I'd
need to change the disk parameters to use writeback cache.  Something to do
with aio support being removed.

I believe this could be done with custom parameters?  But I believe strage
tests are done using dd and would they fail with current settings then?
Last upgrade to 3.7.13 I had to rollback to 3.7.11 due to stability isues
where gluster storage would go into down state and always show N/A as space
available/used.  Even if hosts saw storage still and VM's were running on
it on all 3 hosts.

Saw a lot of messages like these that went away once gluster rollback
finished

[2016-07-09 15:27:46.935694] I [fuse-bridge.c:4083:fuse_init]
0-glusterfs-fuse: FUSE inited with protocol versions: glusterfs 7.22 kernel
7.22
[2016-07-09 15:27:49.555466] W [MSGID: 114031]
[client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-1: remote
operation failed [Operation not permitted]
[2016-07-09 15:27:49.556574] W [MSGID: 114031]
[client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-0: remote
operation failed [Operation not permitted]
[2016-07-09 15:27:49.556659] W [fuse-bridge.c:2227:fuse_readv_cbk]
0-glusterfs-fuse: 80: READ => -1 gfid=deb61291-5176-4b81-8315-3f1cf8e3534d
fd=0x7f5224002f68 (Operation not permitted)
[2016-07-09 15:27:59.612477] W [MSGID: 114031]
[client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-1: remote
operation failed [Operation not permitted]
[2016-07-09 15:27:59.613700] W [MSGID: 114031]
[client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-0: remote
operation failed [Operation not permitted]
[2016-07-09 15:27:59.613781] W [fuse-bridge.c:2227:fuse_readv_cbk]
0-glusterfs-fuse: 168: READ => -1 gfid=deb61291-5176-4b81-8315-3f1cf8e3534d
fd=0x7f5224002f68 (Operation not permitted)

*David Gossage*
*Carousel Checks Inc. | System Administrator*
*Office* 708.613.2284
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