Re: Fwd: vm paused unknown storage error one node out of 3 only

Krutika Dhananjay <kdhananj@xxxxxxxxxx> · Tue, 16 Aug 2016 10:51:55 +0530

Thanks, I just sent http://review.gluster.org/#/c/15161/1 to reduce the log-level to DEBUG. Let's see what the maintainers have to say. :)

-Krutika

On Tue, Aug 16, 2016 at 5:50 AM, David Gossage <dgossage@xxxxxxxxxxxxxxxxxx> wrote:
On Mon, Aug 15, 2016 at 6:24 PM, Krutika Dhananjay <kdhananj@xxxxxxxxxx> wrote:
No. The EEXIST errors are normal and can be ignored. This can happen when multiple threads try to create the same
shard in parallel. Nothing wrong with that.

Other than they pop up as E errors making a user worry hehe

Is their a known bug filed against that or should I maybe create one to see if we can get that sent to an informational level maybe?  

-Krutika

On Tue, Aug 16, 2016 at 1:02 AM, David Gossage <dgossage@xxxxxxxxxxxxxxxxxx> wrote:
On Sat, Aug 13, 2016 at 6:37 AM, David Gossage <dgossage@xxxxxxxxxxxxxxxxxx> wrote:
Here is reply again just in case.  I got quarantine message so not sure if first went through or wll anytime soon.  Brick logs weren't large so Ill just include as text files this time

Did maintenance over weekend updating ovirt from 3.6.6->3.6.7 and after restrating the complaining ovirt node I was able to migrate the 2 vm with issues.  So not sure why the mount got stale, but I imagine that one node couldn't see the new image files after that had occurred?

Still getting a few sporadic errors, but seems much fewer than before and never get any corresponding notices in any other log files

[2016-08-15 13:40:31.510798] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/0e5ad95d-722d-4374-88fb-66fca0b14341.584 failed [File exists]
[2016-08-15 13:40:31.522067] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/0e5ad95d-722d-4374-88fb-66fca0b14341.584 failed [File exists]
[2016-08-15 17:47:06.375708] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/d5a328be-03d0-42f7-a443-248290849e7d.722 failed [File exists]
[2016-08-15 17:47:26.435198] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/d5a328be-03d0-42f7-a443-248290849e7d.723 failed [File exists]
[2016-08-15 17:47:06.405481] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/d5a328be-03d0-42f7-a443-248290849e7d.722 failed [File exists]
[2016-08-15 17:47:26.464542] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/d5a328be-03d0-42f7-a443-248290849e7d.723 failed [File exists]
[2016-08-15 18:46:47.187967] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.739 failed [File exists]
[2016-08-15 18:47:41.414312] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.779 failed [File exists]
[2016-08-15 18:47:41.450470] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.779 failed [File exists]

The attached file bricks.zip you sent to <kdhananj@xxxxxxxxxx>;<Gluster-users@xxxxxxxxxxx> on 8/13/2016 7:17:35 AM was quarantined. As a safety precaution, the University of South Carolina quarantines .zip and .docm files sent via email. If this is a legitimate attachment <kdhananj@xxxxxxxxxx>;<Gluster-users@xxxxxxxxxxx> may contact the Service Desk at 803-777-1800 (servicedesk@sc.edu) and the attachment file will be released from quarantine and delivered.

On Sat, Aug 13, 2016 at 6:15 AM, David Gossage <dgossage@xxxxxxxxxxxxxxxxxx> wrote:
On Sat, Aug 13, 2016 at 12:26 AM, Krutika Dhananjay <kdhananj@xxxxxxxxxx> wrote:
1. Could you share the output of `gluster volume heal <VOL> info`?
Results were same moments after issue occurred as well
Brick ccgl1.gl.local:/gluster1/BRICK1/1
Status: Connected
Number of entries: 0

Brick ccgl2.gl.local:/gluster1/BRICK1/1
Status: Connected
Number of entries: 0

Brick ccgl4.gl.local:/gluster1/BRICK1/1
Status: Connected
Number of entries: 0

2. `gluster volume info`
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: ccgl4.gl.local:/gluster1/BRICK1/1
Options Reconfigured:
cluster.locking-scheme: granular
nfs.enable-ino32: off
nfs.addr-namelookup: off
nfs.disable: on
performance.strict-write-ordering: off
cluster.background-self-heal-count: 16
cluster.self-heal-window-size: 1024
server.allow-insecure: on
cluster.server-quorum-type: server
cluster.quorum-type: auto
network.remote-dio: enable
cluster.eager-lock: enable
performance.stat-prefetch: on
performance.io-cache: off
performance.read-ahead: off
performance.quick-read: off
storage.owner-gid: 36
storage.owner-uid: 36
performance.readdir-ahead: on
features.shard: on
features.shard-block-size: 64MB
diagnostics.brick-log-level: WARNING

3. fuse mount logs of the affected volume(s)?
 [2016-08-12 21:34:19.518511] W [MSGID: 114031] [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-1: remote operation failed [No such file or directory]
[2016-08-12 21:34:19.519115] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-0: remote operation failed [No such file or directory]
[2016-08-12 21:34:19.519203] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-1: remote operation failed [No such file or directory]
[2016-08-12 21:34:19.519226] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-2: remote operation failed [No such file or directory]
[2016-08-12 21:34:19.520737] W [MSGID: 108008] [afr-read-txn.c:244:afr_read_txn] 0-GLUSTER1-replicate-0: Unreadable subvolume -1 found with event generation 3 for gfid e18650c4-02c0-4a5a-bd4c-bbdf5fbd9c88. (Possible split-brain)
[2016-08-12 21:34:19.521393] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-2: remote operation failed [No such file or directory]
[2016-08-12 21:34:19.522269] E [MSGID: 109040] [dht-helper.c:1190:dht_migration_complete_check_task] 0-GLUSTER1-dht: (null): failed to lookup the file on GLUSTER1-dht [Stale file handle]
[2016-08-12 21:34:19.522341] W [fuse-bridge.c:2227:fuse_readv_cbk] 0-glusterfs-fuse: 18479997: READ => -1 gfid=31d7c904-775e-4b9f-8ef7-888218679845 fd=0x7f00a80bde58 (Stale file handle)
[2016-08-12 21:34:19.521296] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-1: remote operation failed [No such file or directory]
[2016-08-12 21:34:19.521357] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-0: remote operation failed [No such file or directory]
[2016-08-12 22:15:08.337528] I [MSGID: 109066] [dht-rename.c:1568:dht_rename] 0-GLUSTER1-dht: renaming /7c73a8dd-a72e-4556-ac88-7f6813131e64/images/ec4f5b10-02b1-435c-a7e1-97e399532597/0e6ed1c3-ffe0-43b0-9863-439ccc3193c9.meta.new (hash=GLUSTER1-replicate-0/cache=GLUSTER1-replicate-0) => /7c73a8dd-a72e-4556-ac88-7f6813131e64/images/ec4f5b10-02b1-435c-a7e1-97e399532597/0e6ed1c3-ffe0-43b0-9863-439ccc3193c9.meta (hash=GLUSTER1-replicate-0/cache=GLUSTER1-replicate-0)
[2016-08-12 22:15:12.240026] I [MSGID: 109066] [dht-rename.c:1568:dht_rename] 0-GLUSTER1-dht: renaming /7c73a8dd-a72e-4556-ac88-7f6813131e64/images/78636a1b-86dd-4aaf-8b4f-4ab9c3509e88/4707d651-06c6-446b-b9c8-408004a55ada.meta.new (hash=GLUSTER1-replicate-0/cache=GLUSTER1-replicate-0) => /7c73a8dd-a72e-4556-ac88-7f6813131e64/images/78636a1b-86dd-4aaf-8b4f-4ab9c3509e88/4707d651-06c6-446b-b9c8-408004a55ada.meta (hash=GLUSTER1-replicate-0/cache=GLUSTER1-replicate-0)
[2016-08-12 22:15:11.105593] I [MSGID: 109066] [dht-rename.c:1568:dht_rename] 0-GLUSTER1-dht: renaming /7c73a8dd-a72e-4556-ac88-7f6813131e64/images/ec4f5b10-02b1-435c-a7e1-97e399532597/0e6ed1c3-ffe0-43b0-9863-439ccc3193c9.meta.new (hash=GLUSTER1-replicate-0/cache=GLUSTER1-replicate-0) => /7c73a8dd-a72e-4556-ac88-7f6813131e64/images/ec4f5b10-02b1-435c-a7e1-97e399532597/0e6ed1c3-ffe0-43b0-9863-439ccc3193c9.meta (hash=GLUSTER1-replicate-0/cache=GLUSTER1-replicate-0)
[2016-08-12 22:15:14.772713] I [MSGID: 109066] [dht-rename.c:1568:dht_rename] 0-GLUSTER1-dht: renaming /7c73a8dd-a72e-4556-ac88-7f6813131e64/images/78636a1b-86dd-4aaf-8b4f-4ab9c3509e88/4707d651-06c6-446b-b9c8-408004a55ada.meta.new (hash=GLUSTER1-replicate-0/cache=GLUSTER1-replicate-0) => /7c73a8dd-a72e-4556-ac88-7f6813131e64/images/78636a1b-86dd-4aaf-8b4f-4ab9c3509e88/4707d651-06c6-446b-b9c8-408004a55ada.meta (hash=GLUSTER1-replicate-0/cache=GLUSTER1-replicate-0)

4. glustershd logs
Nothing recent same on all 3 storage nodes
[2016-08-07 08:48:03.593401] I [glusterfsd-mgmt.c:1600:mgmt_getspec_cbk] 0-glusterfs: No change in volfile, continuing
[2016-08-11 08:14:03.683287] I [MSGID: 100011] [glusterfsd.c:1323:reincarnate] 0-glusterfsd: Fetching the volume file from server...
[2016-08-11 08:14:03.684492] I [glusterfsd-mgmt.c:1600:mgmt_getspec_cbk] 0-glusterfs: No change in volfile, continuing

5. Brick logs
 Their have been some error in brick logs I hadn't noticed occurring.  I've zip'd and attached all 3 nodes logs, but from this snippet on one node none of them seem to coincide with the  time window when migration had issues.  f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42 shard refers to an image for a different vm than one I had issues with as well.  Maybe gluster is trying to do some sort of make shard test before writing out changes that would go to that image and that shard file? 

[2016-08-12 18:48:22.463628] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.697 failed [File exists]
[2016-08-12 18:48:24.553455] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.698 failed [File exists]
[2016-08-12 18:49:16.065502] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.738 failed [File exists]
The message "E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.697 failed [File exists]" repeated 5 times between [2016-08-12 18:48:22.463628] and [2016-08-12 18:48:22.514777]
[2016-08-12 18:48:24.581216] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.698 failed [File exists]
The message "E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/f9a7f3c5-4c13-4020-b560-1f4f7b1e3c42.738 failed [File exists]" repeated 5 times between [2016-08-12 18:49:16.065502] and [2016-08-12 18:49:16.107746]
[2016-08-12 19:23:40.964678] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/83794e5d-2225-4560-8df6-7c903c8a648a.1301 failed [File exists]
[2016-08-12 20:00:33.498751] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/0e5ad95d-722d-4374-88fb-66fca0b14341.580 failed [File exists]
[2016-08-12 20:00:33.530938] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/0e5ad95d-722d-4374-88fb-66fca0b14341.580 failed [File exists]
[2016-08-13 01:47:23.338036] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/18843fb4-e31c-4fc3-b519-cc6e5e947813.211 failed [File exists]
The message "E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/18843fb4-e31c-4fc3-b519-cc6e5e947813.211 failed [File exists]" repeated 16 times between [2016-08-13 01:47:23.338036] and [2016-08-13 01:47:23.380980]
[2016-08-13 01:48:02.224494] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/ffbbcce0-3c4a-4fdf-b79f-a96ca3215657.211 failed [File exists]
[2016-08-13 01:48:42.266148] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/18843fb4-e31c-4fc3-b519-cc6e5e947813.177 failed [File exists]
[2016-08-13 01:49:09.717434] E [MSGID: 113022] [posix.c:1245:posix_mknod] 0-GLUSTER1-posix: mknod on /gluster1/BRICK1/1/.shard/18843fb4-e31c-4fc3-b519-cc6e5e947813.178 failed [File exists]

-Krutika

On Sat, Aug 13, 2016 at 3:10 AM, David Gossage <dgossage@xxxxxxxxxxxxxxxxxx> wrote:
On Fri, Aug 12, 2016 at 4:25 PM, Dan Lavu <dan@xxxxxxxxxx> wrote:
David, 

I'm seeing similar behavior in my lab, but it has been caused by healing files in the gluster cluster, though I attribute my problems to problems with the storage fabric. See if 'gluster volume heal $VOL info' indicates files that are being healed, and if those reduce in number, can the VM start? 

I haven't had any files in a state of being healed according to either of the 3 storage nodes.  

I shut down one VM that has been around awhile a moment ago then told it to start on the one ovirt server that complained previously.  It ran fine, and I was able to migrate it off and on the host no issues.

I told one of the new VM's to migrate to the one node and within seconds it paused from unknown storage errors no shards showing heals nothing with an error on storage node.  Same stale file handle issues.

I'll probably put this node in maintenance later and reboot it.  Other than that I may re-clone those 2 reccent VM's.  maybe images just got corrupted though why it would only fail on one node of 3 if image was bad not sure.

Dan

On Thu, Aug 11, 2016 at 7:52 AM, David Gossage <dgossage@xxxxxxxxxxxxxxxxxx> wrote:
Figure I would repost here as well.  one client out of 3 complaining of stale file handles on a few new VM's I migrated over. No errors on storage nodes just client.  Maybe just put that one in maintenance and restart gluster mount?
David Gossage

Carousel Checks Inc. | System Administrator

Office 708.613.2284

---------- Forwarded message ----------
From: David Gossage <dgossage@xxxxxxxxxxxxxxxxxx>
Date: Thu, Aug 11, 2016 at 12:17 AM
Subject: vm paused unknown storage error one node out of 3 only
To: users <users@xxxxxxxxx>

Out of a 3 node cluster running oVirt 3.6.6.2-1.el7.centos with a 3 replicate gluster 3.7.14 starting a VM i just copied in on one node of the 3 gets the following errors.  The other 2 the vm starts fine.  All ovirt and gluster are centos 7 based. VM on start of the one node it tries to default to on its own accord immediately puts into paused for unknown reason.  Telling it to start on different node starts ok.  node with issue already has 5 VMs running fine on it same gluster storage plus the hosted engine on different volume.

gluster nodes logs did not have any errors for volume
nodes own gluster logs had this in log

dfb8777a-7e8c-40ff-8faa-252beabba5f8 couldnt find in .glusterfs .shard or images/

7919f4a0-125c-4b11-b5c9-fb50cc195c43 is the gfid of the bootable drive of the vm

[2016-08-11 04:31:39.982952] W [MSGID: 114031] [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-2: remote operation failed [No such file or directory]
[2016-08-11 04:31:39.983683] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-2: remote operation failed [No such file or directory]
[2016-08-11 04:31:39.984182] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-0: remote operation failed [No such file or directory]
[2016-08-11 04:31:39.984221] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-1: remote operation failed [No such file or directory]
[2016-08-11 04:31:39.985941] W [MSGID: 108008] [afr-read-txn.c:244:afr_read_txn] 0-GLUSTER1-replicate-0: Unreadable subvolume -1 found with event generation 3 for gfid dfb8777a-7e8c-40ff-8faa-252beabba5f8. (Possible split-brain)
[2016-08-11 04:31:39.986633] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-2: remote operation failed [No such file or directory]
[2016-08-11 04:31:39.987644] E [MSGID: 109040] [dht-helper.c:1190:dht_migration_complete_check_task] 0-GLUSTER1-dht: (null): failed to lookup the file on GLUSTER1-dht [Stale file handle]
[2016-08-11 04:31:39.987751] W [fuse-bridge.c:2227:fuse_readv_cbk] 0-glusterfs-fuse: 15152930: READ => -1 gfid=7919f4a0-125c-4b11-b5c9-fb50cc195c43 fd=0x7f00a80bdb64 (Stale file handle)
[2016-08-11 04:31:39.986567] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-0: remote operation failed [No such file or directory]
[2016-08-11 04:31:39.986567] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-1: remote operation failed [No such file or directory]
[2016-08-11 04:35:21.210145] W [MSGID: 108008] [afr-read-txn.c:244:afr_read_txn] 0-GLUSTER1-replicate-0: Unreadable subvolume -1 found with event generation 3 for gfid dfb8777a-7e8c-40ff-8faa-252beabba5f8. (Possible split-brain)
[2016-08-11 04:35:21.210873] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-1: remote operation failed [No such file or directory]
[2016-08-11 04:35:21.210888] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-2: remote operation failed [No such file or directory]
[2016-08-11 04:35:21.210947] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-0: remote operation failed [No such file or directory]
[2016-08-11 04:35:21.213270] E [MSGID: 109040] [dht-helper.c:1190:dht_migration_complete_check_task] 0-GLUSTER1-dht: (null): failed to lookup the file on GLUSTER1-dht [Stale file handle]
[2016-08-11 04:35:21.213345] W [fuse-bridge.c:2227:fuse_readv_cbk] 0-glusterfs-fuse: 15156910: READ => -1 gfid=7919f4a0-125c-4b11-b5c9-fb50cc195c43 fd=0x7f00a80bf6d0 (Stale file handle)
[2016-08-11 04:35:21.211516] W [MSGID: 108008] [afr-read-txn.c:244:afr_read_txn] 0-GLUSTER1-replicate-0: Unreadable subvolume -1 found with event generation 3 for gfid dfb8777a-7e8c-40ff-8faa-252beabba5f8. (Possible split-brain)
[2016-08-11 04:35:21.212013] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-0: remote operation failed [No such file or directory]
[2016-08-11 04:35:21.212081] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-1: remote operation failed [No such file or directory]
[2016-08-11 04:35:21.212121] W [MSGID: 114031] [client-rpc-fops.c:1572:client3_3_fstat_cbk] 0-GLUSTER1-client-2: remote operation failed [No such file or directory]

I attached vdsm.log starting from when I spun up vm on offending node

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