[ovirt-users] ovirt 3.6.6 and gluster 3.7.13
David Gossage
dgossage at carouselchecks.com
Sat Aug 13 12:00:28 EDT 2016
On Sat, Aug 13, 2016 at 8:19 AM, Scott <romracer at gmail.com> wrote:
> Had a chance to upgrade my cluster to Gluster 3.7.14 and can confirm it
> works for me too where 3.7.12/13 did not.
>
> I did find that you should NOT turn off network.remote-dio or turn
> on performance.strict-o-direct as suggested earlier in the thread. They
> will prevent dd (using direct flag) and other things from working
> properly. I'd leave those at network.remote-dio=enabled
> and performance.strict-o-direct=off.
>
Those were actually just suggested during a testing phase trying to trace
down the issue. Neither of those 2 I think have ever been suggested as
good practice. At least not for VM storage.
> Hopefully we can see Gluster 3.7.14 moved out of testing repo soon.
>
> Scott
>
> On Tue, Aug 2, 2016 at 9:05 AM, David Gossage <dgossage at carouselchecks.com
> > wrote:
>
>> So far gluster 3.7.14 seems to have resolved issues at least on my test
>> box. dd commands that failed previously now work with sharding on zfs
>> backend,
>>
>> Where before I couldn't even mount a new storage domain it now mounted
>> and I have a test vm being created.
>>
>> Still have to let VM run for a few days and make sure no locking freezing
>> occurs but looks hopeful so far.
>>
>> *David Gossage*
>> *Carousel Checks Inc. | System Administrator*
>> *Office* 708.613.2284
>>
>> On Tue, Jul 26, 2016 at 8:15 AM, David Gossage <
>> dgossage at carouselchecks.com> wrote:
>>
>>> On Tue, Jul 26, 2016 at 4:37 AM, Krutika Dhananjay <kdhananj at redhat.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> 1. Could you please attach the glustershd logs from all three nodes?
>>>>
>>>
>>> Here are ccgl1 and ccgl2. as previously mentioned ccgl3 third node was
>>> down from bad nic so no relevant logs would be on that node.
>>>
>>>
>>>>
>>>> 2. Also, so far what we know is that the 'Operation not permitted'
>>>> errors are on the main vm image itself and not its individual shards (ex
>>>> deb61291-5176-4b81-8315-3f1cf8e3534d). Could you do the following:
>>>> Get the inode number of .glusterfs/de/b6/deb61291-5176-4b81-8315-3f1cf8e3534d
>>>> (ls -li) from the first brick. I'll call this number INODE_NUMBER.
>>>> Execute `find . -inum INODE_NUMBER` from the brick root on first brick
>>>> to print the hard links against the file in the prev step and share the
>>>> output.
>>>>
>>> [dgossage at ccgl1 ~]$ sudo ls -li /gluster1/BRICK1/1/.glusterfs/
>>> de/b6/deb61291-5176-4b81-8315-3f1cf8e3534d
>>> 16407 -rw-r--r--. 2 36 36 466 Jun 5 16:52 /gluster1/BRICK1/1/.glusterfs/
>>> de/b6/deb61291-5176-4b81-8315-3f1cf8e3534d
>>> [dgossage at ccgl1 ~]$ cd /gluster1/BRICK1/1/
>>> [dgossage at ccgl1 1]$ sudo find . -inum 16407
>>> ./7c73a8dd-a72e-4556-ac88-7f6813131e64/dom_md/metadata
>>> ./.glusterfs/de/b6/deb61291-5176-4b81-8315-3f1cf8e3534d
>>>
>>>
>>>
>>>>
>>>> 3. Did you delete any vms at any point before or after the upgrade?
>>>>
>>>
>>> Immediately before or after on same day pretty sure I deleted nothing.
>>> During week prior I deleted a few dev vm's that were never setup and some
>>> the week after upgrade as I was preparing for moving disks off and on
>>> storage to get them sharded and felt it would be easier to just recreate
>>> some disks that had no data yet rather than move them off and on later.
>>>
>>>>
>>>> -Krutika
>>>>
>>>> On Mon, Jul 25, 2016 at 11:30 PM, David Gossage <
>>>> dgossage at carouselchecks.com> wrote:
>>>>
>>>>>
>>>>> On Mon, Jul 25, 2016 at 9:58 AM, Krutika Dhananjay <
>>>>> kdhananj at redhat.com> wrote:
>>>>>
>>>>>> OK, could you try the following:
>>>>>>
>>>>>> i. Set network.remote-dio to off
>>>>>> # gluster volume set <VOL> network.remote-dio off
>>>>>>
>>>>>> ii. Set performance.strict-o-direct to on
>>>>>> # gluster volume set <VOL> performance.strict-o-direct on
>>>>>>
>>>>>> iii. Stop the affected vm(s) and start again
>>>>>>
>>>>>> and tell me if you notice any improvement?
>>>>>>
>>>>>>
>>>>> Previous instll I had issue with is still on gluster 3.7.11
>>>>>
>>>>> My test install of ovirt 3.6.7 and gluster 3.7.13 with 3 bricks on a
>>>>> locak disk right now isn't allowing me to add the gluster storage at all.
>>>>>
>>>>> Keep getting some type of UI error
>>>>>
>>>>> 2016-07-25 12:49:09,277 ERROR [org.ovirt.engine.ui.frontend.
>>>>> server.gwt.OvirtRemoteLoggingService] (default task-33) []
>>>>> Permutation name: 430985F23DFC1C8BE1C7FDD91EDAA785
>>>>> 2016-07-25 12:49:09,277 ERROR [org.ovirt.engine.ui.frontend.
>>>>> server.gwt.OvirtRemoteLoggingService] (default task-33) [] Uncaught
>>>>> exception: : java.lang.ClassCastException
>>>>> at Unknown.ps(https://ccengine2.c
>>>>> arouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1
>>>>> C7FDD91EDAA785.cache.html at 3837) at Unknown.ts(https://ccengine2.c
>>>>> arouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1
>>>>> C7FDD91EDAA785.cache.html at 20) at Unknown.vs(https://ccengine2.c
>>>>> arouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1
>>>>> C7FDD91EDAA785.cache.html at 18) at Unknown.iJf(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 19) at Unknown.Xab(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 48) at Unknown.P8o(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 4447) at Unknown.jQr(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 21) at Unknown.A8o(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 51) at Unknown.u8o(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 101) at Unknown.Eap(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 10718) at Unknown.p8n(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 161) at Unknown.Cao(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 31) at Unknown.Bap(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 10469) at Unknown.kRn(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 49) at Unknown.nRn(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 438) at Unknown.eVn(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 40) at Unknown.hVn(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 25827) at Unknown.MTn(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 25) at Unknown.PTn(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 24052) at Unknown.KJe(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 21125) at Unknown.Izk(https://ccengine2.
>>>>> carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE
>>>>> 1C7FDD91EDAA785.cache.html at 10384) at Unknown.P3(https://ccengine2.c
>>>>> arouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1
>>>>> C7FDD91EDAA785.cache.html at 137) at Unknown.g4(https://ccengine2.c
>>>>> arouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1
>>>>> C7FDD91EDAA785.cache.html at 8271) at Unknown.<anonymous>(https://cc
>>>>> engine2.carouselchecks.local/ovirt-engine/webadmin/430985F2
>>>>> 3DFC1C8BE1C7FDD91EDAA785.cache.html at 65) at Unknown._t(
>>>>> https://ccengine2.carouselchecks.local/ovirt-engi
>>>>> ne/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 29) at
>>>>> Unknown.du(https://ccengine2.carouselchecks.local/ovirt-engi
>>>>> ne/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 57) at
>>>>> Unknown.<anonymous>(https://ccengine2.carouselchecks.local/
>>>>> ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html at 54)
>>>>>
>>>>>
>>>>>> -Krutika
>>>>>>
>>>>>> On Mon, Jul 25, 2016 at 4:57 PM, Samuli Heinonen <
>>>>>> samppah at neutraali.net> wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> > On 25 Jul 2016, at 12:34, David Gossage <
>>>>>>> dgossage at carouselchecks.com> wrote:
>>>>>>> >
>>>>>>> > On Mon, Jul 25, 2016 at 1:01 AM, Krutika Dhananjay <
>>>>>>> kdhananj at redhat.com> wrote:
>>>>>>> > Hi,
>>>>>>> >
>>>>>>> > Thanks for the logs. So I have identified one issue from the logs
>>>>>>> for which the fix is this: http://review.gluster.org/#/c/14669/.
>>>>>>> Because of a bug in the code, ENOENT was getting converted to EPERM and
>>>>>>> being propagated up the stack causing the reads to bail out early with
>>>>>>> 'Operation not permitted' errors.
>>>>>>> > I still need to find out two things:
>>>>>>> > i) why there was a readv() sent on a non-existent (ENOENT) file
>>>>>>> (this is important since some of the other users have not faced or reported
>>>>>>> this issue on gluster-users with 3.7.13)
>>>>>>> > ii) need to see if there's a way to work around this issue.
>>>>>>> >
>>>>>>> > Do you mind sharing the steps needed to be executed to run into
>>>>>>> this issue? This is so that we can apply our patches, test and ensure they
>>>>>>> fix the problem.
>>>>>>>
>>>>>>>
>>>>>>> Unfortunately I can’t test this right away nor give exact steps how
>>>>>>> to test this. This is just a theory but please correct me if you see some
>>>>>>> mistakes.
>>>>>>>
>>>>>>> oVirt uses cache=none settings for VM’s by default which requires
>>>>>>> direct I/O. oVirt also uses dd with iflag=direct to check that storage has
>>>>>>> direct I/O enabled. Problems exist with GlusterFS with sharding enabled and
>>>>>>> bricks running on ZFS on Linux. Everything seems to be fine with GlusterFS
>>>>>>> 3.7.11 and problems exist at least with version .12 and .13. There has been
>>>>>>> some posts saying that GlusterFS 3.8.x is also affected.
>>>>>>>
>>>>>>> Steps to reproduce:
>>>>>>> 1. Sharded file is created with GlusterFS 3.7.11. Everything works
>>>>>>> ok.
>>>>>>> 2. GlusterFS is upgraded to 3.7.12+
>>>>>>> 3. Sharded file cannot be read or written with direct I/O enabled.
>>>>>>> (Ie. oVirt uses to check storage connection with command "dd
>>>>>>> if=/rhev/data-center/00000001-0001-0001-0001-0000000002b6/mastersd/dom_md/inbox
>>>>>>> iflag=direct,fullblock count=1 bs=1024000”)
>>>>>>>
>>>>>>> Please let me know if you need more information.
>>>>>>>
>>>>>>> -samuli
>>>>>>>
>>>>>>> > Well after upgrade of gluster all I did was start ovirt hosts up
>>>>>>> which launched and started their ha-agent and broker processes. I don't
>>>>>>> believe I started getting any errors till it mounted GLUSTER1. I had
>>>>>>> enabled sharding but had no sharded disk images yet. Not sure if the check
>>>>>>> for shards would have caused that. Unfortunately I can't just update this
>>>>>>> cluster and try and see what caused it as it has sme VM's users expect to
>>>>>>> be available in few hours.
>>>>>>> >
>>>>>>> > I can see if I can get my test setup to recreate it. I think I'll
>>>>>>> need to de-activate data center so I can detach the storage thats on xfs
>>>>>>> and attach the one thats over zfs with sharding enabled. My test is 3
>>>>>>> bricks on same local machine, with 3 different volumes but I think im
>>>>>>> running into sanlock issue or something as it won't mount more than one
>>>>>>> volume that was created locally.
>>>>>>> >
>>>>>>> >
>>>>>>> > -Krutika
>>>>>>> >
>>>>>>> > On Fri, Jul 22, 2016 at 7:17 PM, David Gossage <
>>>>>>> dgossage at carouselchecks.com> wrote:
>>>>>>> > Trimmed out the logs to just about when I was shutting down ovirt
>>>>>>> servers for updates which was 14:30 UTC 2016-07-09
>>>>>>> >
>>>>>>> > Pre-update settings were
>>>>>>> >
>>>>>>> > Volume Name: GLUSTER1
>>>>>>> > Type: Replicate
>>>>>>> > Volume ID: 167b8e57-28c3-447a-95cc-8410cbdf3f7f
>>>>>>> > Status: Started
>>>>>>> > Number of Bricks: 1 x 3 = 3
>>>>>>> > Transport-type: tcp
>>>>>>> > Bricks:
>>>>>>> > Brick1: ccgl1.gl.local:/gluster1/BRICK1/1
>>>>>>> > Brick2: ccgl2.gl.local:/gluster1/BRICK1/1
>>>>>>> > Brick3: ccgl3.gl.local:/gluster1/BRICK1/1
>>>>>>> > Options Reconfigured:
>>>>>>> > performance.readdir-ahead: on
>>>>>>> > storage.owner-uid: 36
>>>>>>> > storage.owner-gid: 36
>>>>>>> > performance.quick-read: off
>>>>>>> > performance.read-ahead: off
>>>>>>> > performance.io-cache: off
>>>>>>> > performance.stat-prefetch: off
>>>>>>> > cluster.eager-lock: enable
>>>>>>> > network.remote-dio: enable
>>>>>>> > cluster.quorum-type: auto
>>>>>>> > cluster.server-quorum-type: server
>>>>>>> > server.allow-insecure: on
>>>>>>> > cluster.self-heal-window-size: 1024
>>>>>>> > cluster.background-self-heal-count: 16
>>>>>>> > performance.strict-write-ordering: off
>>>>>>> > nfs.disable: on
>>>>>>> > nfs.addr-namelookup: off
>>>>>>> > nfs.enable-ino32: off
>>>>>>> >
>>>>>>> > At the time of updates ccgl3 was offline from bad nic on server
>>>>>>> but had been so for about a week with no issues in volume
>>>>>>> >
>>>>>>> > Shortly after update I added these settings to enable sharding but
>>>>>>> did not as of yet have any VM images sharded.
>>>>>>> > features.shard-block-size: 64MB
>>>>>>> > features.shard: on
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> > David Gossage
>>>>>>> > Carousel Checks Inc. | System Administrator
>>>>>>> > Office 708.613.2284
>>>>>>> >
>>>>>>> > On Fri, Jul 22, 2016 at 5:00 AM, Krutika Dhananjay <
>>>>>>> kdhananj at redhat.com> wrote:
>>>>>>> > Hi David,
>>>>>>> >
>>>>>>> > Could you also share the brick logs from the affected volume?
>>>>>>> They're located at /var/log/glusterfs/bricks/<hyp
>>>>>>> henated-path-to-the-brick-directory>.log.
>>>>>>> >
>>>>>>> > Also, could you share the volume configuration (output of `gluster
>>>>>>> volume info <VOL>`) for the affected volume(s) AND at the time you actually
>>>>>>> saw this issue?
>>>>>>> >
>>>>>>> > -Krutika
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> > On Thu, Jul 21, 2016 at 11:23 PM, David Gossage <
>>>>>>> dgossage at carouselchecks.com> wrote:
>>>>>>> > On Thu, Jul 21, 2016 at 11:47 AM, Scott <romracer at gmail.com>
>>>>>>> wrote:
>>>>>>> > Hi David,
>>>>>>> >
>>>>>>> > My backend storage is ZFS.
>>>>>>> >
>>>>>>> > I thought about moving from FUSE to NFS mounts for my Gluster
>>>>>>> volumes to help test. But since I use hosted engine this would be a real
>>>>>>> pain. Its difficult to modify the storage domain type/path in the
>>>>>>> hosted-engine.conf. And I don't want to go through the process of
>>>>>>> re-deploying hosted engine.
>>>>>>> >
>>>>>>> >
>>>>>>> > I found this
>>>>>>> >
>>>>>>> > https://bugzilla.redhat.com/show_bug.cgi?id=1347553
>>>>>>> >
>>>>>>> > Not sure if related.
>>>>>>> >
>>>>>>> > But I also have zfs backend, another user in gluster mailing list
>>>>>>> had issues and used zfs backend although she used proxmox and got it
>>>>>>> working by changing disk to writeback cache I think it was.
>>>>>>> >
>>>>>>> > I also use hosted engine, but I run my gluster volume for HE
>>>>>>> actually on a LVM separate from zfs on xfs and if i recall it did not have
>>>>>>> the issues my gluster on zfs did. I'm wondering now if the issue was zfs
>>>>>>> settings.
>>>>>>> >
>>>>>>> > Hopefully should have a test machone up soon I can play around
>>>>>>> with more.
>>>>>>> >
>>>>>>> > Scott
>>>>>>> >
>>>>>>> > On Thu, Jul 21, 2016 at 11:36 AM David Gossage <
>>>>>>> dgossage at carouselchecks.com> wrote:
>>>>>>> > What back end storage do you run gluster on? xfs/zfs/ext4 etc?
>>>>>>> >
>>>>>>> > David Gossage
>>>>>>> > Carousel Checks Inc. | System Administrator
>>>>>>> > Office 708.613.2284
>>>>>>> >
>>>>>>> > On Thu, Jul 21, 2016 at 8:18 AM, Scott <romracer at gmail.com> wrote:
>>>>>>> > I get similar problems with oVirt 4.0.1 and hosted engine. After
>>>>>>> upgrading all my hosts to Gluster 3.7.13 (client and server), I get the
>>>>>>> following:
>>>>>>> >
>>>>>>> > $ sudo hosted-engine --set-maintenance --mode=none
>>>>>>> > Traceback (most recent call last):
>>>>>>> > File "/usr/lib64/python2.7/runpy.py", line 162, in
>>>>>>> _run_module_as_main
>>>>>>> > "__main__", fname, loader, pkg_name)
>>>>>>> > File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code
>>>>>>> > exec code in run_globals
>>>>>>> > File "/usr/lib/python2.7/site-packa
>>>>>>> ges/ovirt_hosted_engine_setup/set_maintenance.py", line 73, in
>>>>>>> <module>
>>>>>>> > if not maintenance.set_mode(sys.argv[1]):
>>>>>>> > File "/usr/lib/python2.7/site-packa
>>>>>>> ges/ovirt_hosted_engine_setup/set_maintenance.py", line 61, in
>>>>>>> set_mode
>>>>>>> > value=m_global,
>>>>>>> > File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
>>>>>>> line 259, in set_maintenance_mode
>>>>>>> > str(value))
>>>>>>> > File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
>>>>>>> line 204, in set_global_md_flag
>>>>>>> > all_stats = broker.get_stats_from_storage(service)
>>>>>>> > File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
>>>>>>> line 232, in get_stats_from_storage
>>>>>>> > result = self._checked_communicate(request)
>>>>>>> > File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
>>>>>>> line 260, in _checked_communicate
>>>>>>> > .format(message or response))
>>>>>>> > ovirt_hosted_engine_ha.lib.exceptions.RequestError: Request
>>>>>>> failed: failed to read metadata: [Errno 1] Operation not permitted
>>>>>>> >
>>>>>>> > If I only upgrade one host, then things will continue to work but
>>>>>>> my nodes are constantly healing shards. My logs are also flooded with:
>>>>>>> >
>>>>>>> > [2016-07-21 13:15:14.137734] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 274714: READ => -1 gfid=4
>>>>>>> > 41f2789-f6b1-4918-a280-1b9905a11429 fd=0x7f19bc0041d0 (Operation
>>>>>>> not permitted)
>>>>>>> > The message "W [MSGID: 114031] [client-rpc-fops.c:3050:client3_3_readv_cbk]
>>>>>>> 0-data-client-0: remote operation failed [Operation not permitted]"
>>>>>>> repeated 6 times between [2016-07-21 13:13:24.134985] and [2016-07-21
>>>>>>> 13:15:04.132226]
>>>>>>> > The message "W [MSGID: 114031] [client-rpc-fops.c:3050:client3_3_readv_cbk]
>>>>>>> 0-data-client-1: remote operation failed [Operation not permitted]"
>>>>>>> repeated 8 times between [2016-07-21 13:13:34.133116] and [2016-07-21
>>>>>>> 13:15:14.137178]
>>>>>>> > The message "W [MSGID: 114031] [client-rpc-fops.c:3050:client3_3_readv_cbk]
>>>>>>> 0-data-client-2: remote operation failed [Operation not permitted]"
>>>>>>> repeated 7 times between [2016-07-21 13:13:24.135071] and [2016-07-21
>>>>>>> 13:15:14.137666]
>>>>>>> > [2016-07-21 13:15:24.134647] W [MSGID: 114031]
>>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-0:
>>>>>>> remote operation failed [Operation not permitted]
>>>>>>> > [2016-07-21 13:15:24.134764] W [MSGID: 114031]
>>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-2:
>>>>>>> remote operation failed [Operation not permitted]
>>>>>>> > [2016-07-21 13:15:24.134793] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 274741: READ => -1 gfid=441f2789-f6b1-4918-a280-1b9905a11429
>>>>>>> fd=0x7f19bc0038f4 (Operation not permitted)
>>>>>>> > [2016-07-21 13:15:34.135413] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 274756: READ => -1 gfid=441f2789-f6b1-4918-a280-1b9905a11429
>>>>>>> fd=0x7f19bc0041d0 (Operation not permitted)
>>>>>>> > [2016-07-21 13:15:44.141062] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 274818: READ => -1 gfid=441f2789-f6b1-4918-a280-1b9905a11429
>>>>>>> fd=0x7f19bc0038f4 (Operation not permitted)
>>>>>>> > [2016-07-21 13:15:54.133582] W [MSGID: 114031]
>>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-1:
>>>>>>> remote operation failed [Operation not permitted]
>>>>>>> > [2016-07-21 13:15:54.133629] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 274853: READ => -1 gfid=441f2789-f6b1-4918-a280-1b9905a11429
>>>>>>> fd=0x7f19bc0036d8 (Operation not permitted)
>>>>>>> > [2016-07-21 13:16:04.133666] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 274879: READ => -1 gfid=441f2789-f6b1-4918-a280-1b9905a11429
>>>>>>> fd=0x7f19bc0041d0 (Operation not permitted)
>>>>>>> > [2016-07-21 13:16:14.134954] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 274894: READ => -1 gfid=441f2789-f6b1-4918-a280-1b9905a11429
>>>>>>> fd=0x7f19bc0036d8 (Operation not permitted)
>>>>>>> >
>>>>>>> > Scott
>>>>>>> >
>>>>>>> >
>>>>>>> > On Thu, Jul 21, 2016 at 6:57 AM Frank Rothenstein <
>>>>>>> f.rothenstein at bodden-kliniken.de> wrote:
>>>>>>> > Hey Devid,
>>>>>>> >
>>>>>>> > I have the very same problem on my test-cluster, despite on
>>>>>>> running ovirt 4.0.
>>>>>>> > If you access your volumes via NFS all is fine, problem is FUSE. I
>>>>>>> stayed on 3.7.13, but have no solution yet, now I use NFS.
>>>>>>> >
>>>>>>> > Frank
>>>>>>> >
>>>>>>> > Am Donnerstag, den 21.07.2016, 04:28 -0500 schrieb 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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