[ovirt-users] ovirt 3.6.6 and gluster 3.7.13
David Gossage
dgossage at carouselchecks.com
Tue Aug 2 10:05:27 EDT 2016
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.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@3837)
>>> at Unknown.ts(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@20)
>>> at Unknown.vs(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@18)
>>> at Unknown.iJf(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@19)
>>> at Unknown.Xab(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@48)
>>> at Unknown.P8o(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@4447)
>>> at Unknown.jQr(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@21)
>>> at Unknown.A8o(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@51)
>>> at Unknown.u8o(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@101)
>>> at Unknown.Eap(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@10718)
>>> at Unknown.p8n(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@161)
>>> at Unknown.Cao(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@31)
>>> at Unknown.Bap(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@10469)
>>> at Unknown.kRn(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@49)
>>> at Unknown.nRn(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@438)
>>> at Unknown.eVn(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@40)
>>> at Unknown.hVn(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@25827)
>>> at Unknown.MTn(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@25)
>>> at Unknown.PTn(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@24052)
>>> at Unknown.KJe(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@21125)
>>> at Unknown.Izk(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@10384)
>>> at Unknown.P3(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@137)
>>> at Unknown.g4(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@8271)
>>> at Unknown.<anonymous>(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@65)
>>> at Unknown._t(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@29)
>>> at Unknown.du(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@57)
>>> at Unknown.<anonymous>(
>>> https://ccengine2.carouselchecks.local/ovirt-engine/webadmin/430985F23DFC1C8BE1C7FDD91EDAA785.cache.html@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/<hyphenated-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-packages/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-packages/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
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