[Gluster-users] [Gluster-devel] heal hanging

David Robinson david.robinson at corvidtec.com
Mon Jan 25 17:40:17 UTC 2016


It is doing it again... statedump from gfs02a is attached...



------ Original Message ------
From: "Pranith Kumar Karampuri" <pkarampu at redhat.com>
To: "Glomski, Patrick" <patrick.glomski at corvidtec.com>
Cc: "David Robinson" <drobinson at corvidtec.com>; 
"gluster-users at gluster.org" <gluster-users at gluster.org>; "Gluster Devel" 
<gluster-devel at gluster.org>
Sent: 1/24/2016 9:27:02 PM
Subject: Re: [Gluster-users] [Gluster-devel] heal hanging

>It seems like there is a lot of finodelk/inodelk traffic. I wonder why 
>that is. I think the next steps is to collect statedump of the brick 
>which is taking lot of CPU, using "gluster volume statedump <volname>"
>
>Pranith
>On 01/22/2016 08:36 AM, Glomski, Patrick wrote:
>>Pranith, attached are stack traces collected every second for 20 
>>seconds from the high-%cpu glusterfsd process.
>>
>>Patrick
>>
>>On Thu, Jan 21, 2016 at 9:46 PM, Glomski, Patrick 
>><patrick.glomski at corvidtec.com> wrote:
>>>Last entry for get_real_filename on any of the bricks was when we 
>>>turned off the samba gfapi vfs plugin earlier today:
>>>
>>>/var/log/glusterfs/bricks/data-brick01a-homegfs.log:[2016-01-21 
>>>15:13:00.008239] E [server-rpc-fops.c:768:server_getxattr_cbk] 
>>>0-homegfs-server: 105: GETXATTR /wks_backup 
>>>(40e582d6-b0c7-4099-ba88-9168a3c32ca6) 
>>>(glusterfs.get_real_filename:desktop.ini) ==> (Permission denied)
>>>
>>>We'll get back to you with those traces when %cpu spikes again. As 
>>>with most sporadic problems, as soon as you want something out of it, 
>>>the issue becomes harder to reproduce.
>>>
>>>
>>>On Thu, Jan 21, 2016 at 9:21 PM, Pranith Kumar Karampuri 
>>><pkarampu at redhat.com> wrote:
>>>>
>>>>
>>>>On 01/22/2016 07:25 AM, Glomski, Patrick wrote:
>>>>>Unfortunately, all samba mounts to the gluster volume through the 
>>>>>gfapi vfs plugin have been disabled for the last 6 hours or so and 
>>>>>frequency of %cpu spikes is increased. We had switched to sharing a 
>>>>>fuse mount through samba, but I just disabled that as well. There 
>>>>>are no samba shares of this volume now. The spikes now happen every 
>>>>>thirty minutes or so. We've resorted to just rebooting the machine 
>>>>>with high load for the present.
>>>>
>>>>Could you see if the logs of following type are not at all coming?
>>>>[2016-01-21 15:13:00.005736] E 
>>>>[server-rpc-fops.c:768:server_getxattr_cbk] 0-homegfs-server: 110: 
>>>>GETXATTR /wks_backup (40e582d6-b0c7-4099-ba88-9168a3c
>>>>32ca6) (glusterfs.get_real_filename:desktop.ini) ==> (Permission 
>>>>denied)
>>>>
>>>>These are operations that failed. Operations that succeed are the 
>>>>ones that will scan the directory. But I don't have a way to find 
>>>>them other than using tcpdumps.
>>>>
>>>>At the moment I have 2 theories:
>>>>1) these get_real_filename calls
>>>>2) [2016-01-21 16:10:38.017828] E [server-helpers.c:46:gid_resolve] 
>>>>0-gid-cache: getpwuid_r(494) failed
>>>>"
>>>>Yessir they are.  Normally, sssd would look to the local cache file 
>>>>in /var/lib/sss/db/ first, to get any group or userid information, 
>>>>then go out to the domain controller.  I put the options that we are 
>>>>using on our GFS volumes below…  Thanks for your help.
>>>>
>>>>
>>>>
>>>>We had been running sssd with sssd_nss and sssd_be sub-processes on 
>>>>these systems for a long time, under the GFS 3.5.2 code, and not run 
>>>>into the problem that David described with the high cpu usage on 
>>>>sssd_nss.
>>>>
>>>>"
>>>>That was Tom Young's email 1.5 years back when we debugged it. But 
>>>>the process which was consuming lot of cpu is sssd_nss. So I am not 
>>>>sure if it is same issue. Let us debug to see '1)' doesn't happen. 
>>>>The gstack traces I asked for should also help.
>>>>
>>>>
>>>>Pranith
>>>>>
>>>>>On Thu, Jan 21, 2016 at 8:49 PM, Pranith Kumar Karampuri 
>>>>><pkarampu at redhat.com> wrote:
>>>>>>
>>>>>>
>>>>>>On 01/22/2016 07:13 AM, Glomski, Patrick wrote:
>>>>>>>We use the samba glusterfs virtual filesystem (the current 
>>>>>>>version provided on download.gluster.org), but no windows clients 
>>>>>>>connecting directly.
>>>>>>
>>>>>>Hmm.. Is there a way to disable using this and check if the CPU% 
>>>>>>still increases? What getxattr of "glusterfs.get_real_filename 
>>>>>><filanme>" does is to scan the entire directory looking for 
>>>>>>strcasecmp(<filname>, <scanned-filename>). If anything matches 
>>>>>>then it will return the <scanned-filename>. But the problem is the 
>>>>>>scan is costly. So I wonder if this is the reason for the CPU 
>>>>>>spikes.
>>>>>>
>>>>>>Pranith
>>>>>>
>>>>>>>
>>>>>>>On Thu, Jan 21, 2016 at 8:37 PM, Pranith Kumar Karampuri 
>>>>>>><pkarampu at redhat.com> wrote:
>>>>>>>>Do you have any windows clients? I see a lot of getxattr calls 
>>>>>>>>for "glusterfs.get_real_filename" which lead to full readdirs of 
>>>>>>>>the directories on the brick.
>>>>>>>>
>>>>>>>>Pranith
>>>>>>>>
>>>>>>>>On 01/22/2016 12:51 AM, Glomski, Patrick wrote:
>>>>>>>>>Pranith, could this kind of behavior be self-inflicted by us 
>>>>>>>>>deleting files directly from the bricks? We have done that in 
>>>>>>>>>the past to clean up an issues where gluster wouldn't allow us 
>>>>>>>>>to delete from the mount.
>>>>>>>>>
>>>>>>>>>If so, is it feasible to clean them up by running a search on 
>>>>>>>>>the .glusterfs directories directly and removing files with a 
>>>>>>>>>reference count of 1 that are non-zero size (or directly 
>>>>>>>>>checking the xattrs to be sure that it's not a DHT link).
>>>>>>>>>
>>>>>>>>>find /data/brick01a/homegfs/.glusterfs -type f -not -empty 
>>>>>>>>>-links -2 -exec rm -f "{}" \;
>>>>>>>>>
>>>>>>>>>Is there anything I'm inherently missing with that approach 
>>>>>>>>>that will further corrupt the system?
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>On Thu, Jan 21, 2016 at 1:02 PM, Glomski, Patrick 
>>>>>>>>><patrick.glomski at corvidtec.com> wrote:
>>>>>>>>>>Load spiked again: ~1200%cpu on gfs02a for glusterfsd. Crawl 
>>>>>>>>>>has been running on one of the bricks on gfs02b for 25 min or 
>>>>>>>>>>so and users cannot access the volume.
>>>>>>>>>>
>>>>>>>>>>I re-listed the xattrop directories as well as a 'top' entry 
>>>>>>>>>>and heal statistics. Then I restarted the gluster services on 
>>>>>>>>>>gfs02a.
>>>>>>>>>>
>>>>>>>>>>=================== top ===================
>>>>>>>>>>PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  
>>>>>>>>>>COMMAND
>>>>>>>>>>  8969 root      20   0 2815m 204m 3588 S 1181.0  0.6 591:06.93 
>>>>>>>>>>glusterfsd
>>>>>>>>>>
>>>>>>>>>>=================== xattrop ===================
>>>>>>>>>>/data/brick01a/homegfs/.glusterfs/indices/xattrop:
>>>>>>>>>>xattrop-41f19453-91e4-437c-afa9-3b25614de210  
>>>>>>>>>>xattrop-9b815879-2f4d-402b-867c-a6d65087788c
>>>>>>>>>>
>>>>>>>>>>/data/brick02a/homegfs/.glusterfs/indices/xattrop:
>>>>>>>>>>xattrop-70131855-3cfb-49af-abce-9d23f57fb393  
>>>>>>>>>>xattrop-dfb77848-a39d-4417-a725-9beca75d78c6
>>>>>>>>>>
>>>>>>>>>>/data/brick01b/homegfs/.glusterfs/indices/xattrop:
>>>>>>>>>>e6e47ed9-309b-42a7-8c44-28c29b9a20f8          
>>>>>>>>>>xattrop-5c797a64-bde7-4eac-b4fc-0befc632e125
>>>>>>>>>>xattrop-38ec65a1-00b5-4544-8a6c-bf0f531a1934  
>>>>>>>>>>xattrop-ef0980ad-f074-4163-979f-16d5ef85b0a0
>>>>>>>>>>
>>>>>>>>>>/data/brick02b/homegfs/.glusterfs/indices/xattrop:
>>>>>>>>>>xattrop-7402438d-0ee7-4fcf-b9bb-b561236f99bc  
>>>>>>>>>>xattrop-8ffbf5f7-ace3-497d-944e-93ac85241413
>>>>>>>>>>
>>>>>>>>>>/data/brick01a/homegfs/.glusterfs/indices/xattrop:
>>>>>>>>>>xattrop-0115acd0-caae-4dfd-b3b4-7cc42a0ff531
>>>>>>>>>>
>>>>>>>>>>/data/brick02a/homegfs/.glusterfs/indices/xattrop:
>>>>>>>>>>xattrop-7e20fdb1-5224-4b9a-be06-568708526d70
>>>>>>>>>>
>>>>>>>>>>/data/brick01b/homegfs/.glusterfs/indices/xattrop:
>>>>>>>>>>8034bc06-92cd-4fa5-8aaf-09039e79d2c8  
>>>>>>>>>>c9ce22ed-6d8b-471b-a111-b39e57f0b512
>>>>>>>>>>94fa1d60-45ad-4341-b69c-315936b51e8d  
>>>>>>>>>>xattrop-9c04623a-64ce-4f66-8b23-dbaba49119c7
>>>>>>>>>>
>>>>>>>>>>/data/brick02b/homegfs/.glusterfs/indices/xattrop:
>>>>>>>>>>xattrop-b8c8f024-d038-49a2-9a53-c54ead09111d
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>=================== heal stats ===================
>>>>>>>>>>
>>>>>>>>>>homegfs [b0-gfsib01a] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:36:45 2016
>>>>>>>>>>homegfs [b0-gfsib01a] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:36:45 2016
>>>>>>>>>>homegfs [b0-gfsib01a] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b0-gfsib01a] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b0-gfsib01a] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b0-gfsib01a] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b1-gfsib01b] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:36:19 2016
>>>>>>>>>>homegfs [b1-gfsib01b] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:36:19 2016
>>>>>>>>>>homegfs [b1-gfsib01b] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b1-gfsib01b] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b1-gfsib01b] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b1-gfsib01b] : No. of heal failed entries   : 1
>>>>>>>>>>
>>>>>>>>>>homegfs [b2-gfsib01a] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:36:48 2016
>>>>>>>>>>homegfs [b2-gfsib01a] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:36:48 2016
>>>>>>>>>>homegfs [b2-gfsib01a] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b2-gfsib01a] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b2-gfsib01a] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b2-gfsib01a] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b3-gfsib01b] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:36:47 2016
>>>>>>>>>>homegfs [b3-gfsib01b] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:36:47 2016
>>>>>>>>>>homegfs [b3-gfsib01b] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b3-gfsib01b] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b3-gfsib01b] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b3-gfsib01b] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b4-gfsib02a] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:36:06 2016
>>>>>>>>>>homegfs [b4-gfsib02a] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:36:06 2016
>>>>>>>>>>homegfs [b4-gfsib02a] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b4-gfsib02a] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b4-gfsib02a] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b4-gfsib02a] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b5-gfsib02b] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:13:40 2016
>>>>>>>>>>homegfs [b5-gfsib02b] :                                *** 
>>>>>>>>>>Crawl is in progress ***
>>>>>>>>>>homegfs [b5-gfsib02b] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b5-gfsib02b] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b5-gfsib02b] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b5-gfsib02b] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b6-gfsib02a] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:36:58 2016
>>>>>>>>>>homegfs [b6-gfsib02a] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:36:58 2016
>>>>>>>>>>homegfs [b6-gfsib02a] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b6-gfsib02a] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b6-gfsib02a] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b6-gfsib02a] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b7-gfsib02b] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:36:50 2016
>>>>>>>>>>homegfs [b7-gfsib02b] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:36:50 2016
>>>>>>>>>>homegfs [b7-gfsib02b] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b7-gfsib02b] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b7-gfsib02b] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b7-gfsib02b] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>========================================================================================
>>>>>>>>>>I waited a few minutes for the heals to finish and ran the 
>>>>>>>>>>heal statistics and info again. one file is in split-brain. 
>>>>>>>>>>Aside from the split-brain, the load on all systems is down 
>>>>>>>>>>now and they are behaving normally. glustershd.log is 
>>>>>>>>>>attached. What is going on???
>>>>>>>>>>
>>>>>>>>>>Thu Jan 21 12:53:50 EST 2016
>>>>>>>>>>
>>>>>>>>>>=================== homegfs ===================
>>>>>>>>>>
>>>>>>>>>>homegfs [b0-gfsib01a] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:53:02 2016
>>>>>>>>>>homegfs [b0-gfsib01a] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:53:02 2016
>>>>>>>>>>homegfs [b0-gfsib01a] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b0-gfsib01a] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b0-gfsib01a] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b0-gfsib01a] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b1-gfsib01b] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:53:38 2016
>>>>>>>>>>homegfs [b1-gfsib01b] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:53:38 2016
>>>>>>>>>>homegfs [b1-gfsib01b] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b1-gfsib01b] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b1-gfsib01b] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b1-gfsib01b] : No. of heal failed entries   : 1
>>>>>>>>>>
>>>>>>>>>>homegfs [b2-gfsib01a] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:53:04 2016
>>>>>>>>>>homegfs [b2-gfsib01a] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:53:04 2016
>>>>>>>>>>homegfs [b2-gfsib01a] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b2-gfsib01a] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b2-gfsib01a] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b2-gfsib01a] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b3-gfsib01b] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:53:04 2016
>>>>>>>>>>homegfs [b3-gfsib01b] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:53:04 2016
>>>>>>>>>>homegfs [b3-gfsib01b] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b3-gfsib01b] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b3-gfsib01b] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b3-gfsib01b] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b4-gfsib02a] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:53:33 2016
>>>>>>>>>>homegfs [b4-gfsib02a] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:53:33 2016
>>>>>>>>>>homegfs [b4-gfsib02a] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b4-gfsib02a] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b4-gfsib02a] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b4-gfsib02a] : No. of heal failed entries   : 1
>>>>>>>>>>
>>>>>>>>>>homegfs [b5-gfsib02b] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:53:14 2016
>>>>>>>>>>homegfs [b5-gfsib02b] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:53:15 2016
>>>>>>>>>>homegfs [b5-gfsib02b] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b5-gfsib02b] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b5-gfsib02b] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b5-gfsib02b] : No. of heal failed entries   : 3
>>>>>>>>>>
>>>>>>>>>>homegfs [b6-gfsib02a] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:53:04 2016
>>>>>>>>>>homegfs [b6-gfsib02a] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:53:04 2016
>>>>>>>>>>homegfs [b6-gfsib02a] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b6-gfsib02a] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b6-gfsib02a] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b6-gfsib02a] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>homegfs [b7-gfsib02b] : Starting time of crawl       : Thu Jan 
>>>>>>>>>>21 12:53:09 2016
>>>>>>>>>>homegfs [b7-gfsib02b] : Ending time of crawl         : Thu Jan 
>>>>>>>>>>21 12:53:09 2016
>>>>>>>>>>homegfs [b7-gfsib02b] : Type of crawl: INDEX
>>>>>>>>>>homegfs [b7-gfsib02b] : No. of entries healed        : 0
>>>>>>>>>>homegfs [b7-gfsib02b] : No. of entries in split-brain: 0
>>>>>>>>>>homegfs [b7-gfsib02b] : No. of heal failed entries   : 0
>>>>>>>>>>
>>>>>>>>>>*** gluster bug in 'gluster volume heal homegfs statistics'   
>>>>>>>>>>***
>>>>>>>>>>*** Use 'gluster volume heal homegfs info' until bug is fixed 
>>>>>>>>>>***
>>>>>>>>>>
>>>>>>>>>>Brick gfs01a.corvidtec.com:/data/brick01a/homegfs/
>>>>>>>>>>Number of entries: 0
>>>>>>>>>>
>>>>>>>>>>Brick gfs01b.corvidtec.com:/data/brick01b/homegfs/
>>>>>>>>>>Number of entries: 0
>>>>>>>>>>
>>>>>>>>>>Brick gfs01a.corvidtec.com:/data/brick02a/homegfs/
>>>>>>>>>>Number of entries: 0
>>>>>>>>>>
>>>>>>>>>>Brick gfs01b.corvidtec.com:/data/brick02b/homegfs/
>>>>>>>>>>Number of entries: 0
>>>>>>>>>>
>>>>>>>>>>Brick gfs02a.corvidtec.com:/data/brick01a/homegfs/
>>>>>>>>>>/users/bangell/.gconfd - Is in split-brain
>>>>>>>>>>
>>>>>>>>>>Number of entries: 1
>>>>>>>>>>
>>>>>>>>>>Brick gfs02b.corvidtec.com:/data/brick01b/homegfs/
>>>>>>>>>>/users/bangell/.gconfd - Is in split-brain
>>>>>>>>>>
>>>>>>>>>>/users/bangell/.gconfd/saved_state
>>>>>>>>>>Number of entries: 2
>>>>>>>>>>
>>>>>>>>>>Brick gfs02a.corvidtec.com:/data/brick02a/homegfs/
>>>>>>>>>>Number of entries: 0
>>>>>>>>>>
>>>>>>>>>>Brick gfs02b.corvidtec.com:/data/brick02b/homegfs/
>>>>>>>>>>Number of entries: 0
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>On Thu, Jan 21, 2016 at 11:10 AM, Pranith Kumar Karampuri 
>>>>>>>>>><pkarampu at redhat.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>On 01/21/2016 09:26 PM, Glomski, Patrick wrote:
>>>>>>>>>>>>I should mention that the problem is not currently occurring 
>>>>>>>>>>>>and there are no heals (output appended). By restarting the 
>>>>>>>>>>>>gluster services, we can stop the crawl, which lowers the 
>>>>>>>>>>>>load for a while. Subsequent crawls seem to finish properly. 
>>>>>>>>>>>>For what it's worth, files/folders that show up in the 
>>>>>>>>>>>>'volume info' output during a hung crawl don't seem to be 
>>>>>>>>>>>>anything out of the ordinary.
>>>>>>>>>>>>
>>>>>>>>>>>>Over the past four days, the typical time before the problem 
>>>>>>>>>>>>recurs after suppressing it in this manner is an hour. Last 
>>>>>>>>>>>>night when we reached out to you was the last time it 
>>>>>>>>>>>>happened and the load has been low since (a relief).  David 
>>>>>>>>>>>>believes that recursively listing the files (ls -alR or 
>>>>>>>>>>>>similar) from a client mount can force the issue to happen, 
>>>>>>>>>>>>but obviously I'd rather not unless we have some precise 
>>>>>>>>>>>>thing we're looking for. Let me know if you'd like me to 
>>>>>>>>>>>>attempt to drive the system unstable like that and what I 
>>>>>>>>>>>>should look for. As it's a production system, I'd rather not 
>>>>>>>>>>>>leave it in this state for long.
>>>>>>>>>>>
>>>>>>>>>>>Will it be possible to send glustershd, mount logs of the 
>>>>>>>>>>>past 4 days? I would like to see if this is because of 
>>>>>>>>>>>directory self-heal going wild (Ravi is working on throttling 
>>>>>>>>>>>feature for 3.8, which will allow to put breaks on self-heal 
>>>>>>>>>>>traffic)
>>>>>>>>>>>
>>>>>>>>>>>Pranith
>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>[root at gfs01a xattrop]# gluster volume heal homegfs info
>>>>>>>>>>>>Brick gfs01a.corvidtec.com:/data/brick01a/homegfs/
>>>>>>>>>>>>Number of entries: 0
>>>>>>>>>>>>
>>>>>>>>>>>>Brick gfs01b.corvidtec.com:/data/brick01b/homegfs/
>>>>>>>>>>>>Number of entries: 0
>>>>>>>>>>>>
>>>>>>>>>>>>Brick gfs01a.corvidtec.com:/data/brick02a/homegfs/
>>>>>>>>>>>>Number of entries: 0
>>>>>>>>>>>>
>>>>>>>>>>>>Brick gfs01b.corvidtec.com:/data/brick02b/homegfs/
>>>>>>>>>>>>Number of entries: 0
>>>>>>>>>>>>
>>>>>>>>>>>>Brick gfs02a.corvidtec.com:/data/brick01a/homegfs/
>>>>>>>>>>>>Number of entries: 0
>>>>>>>>>>>>
>>>>>>>>>>>>Brick gfs02b.corvidtec.com:/data/brick01b/homegfs/
>>>>>>>>>>>>Number of entries: 0
>>>>>>>>>>>>
>>>>>>>>>>>>Brick gfs02a.corvidtec.com:/data/brick02a/homegfs/
>>>>>>>>>>>>Number of entries: 0
>>>>>>>>>>>>
>>>>>>>>>>>>Brick gfs02b.corvidtec.com:/data/brick02b/homegfs/
>>>>>>>>>>>>Number of entries: 0
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>On Thu, Jan 21, 2016 at 10:40 AM, Pranith Kumar Karampuri 
>>>>>>>>>>>><pkarampu at redhat.com> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>On 01/21/2016 08:25 PM, Glomski, Patrick wrote:
>>>>>>>>>>>>>>Hello, Pranith. The typical behavior is that the %cpu on a 
>>>>>>>>>>>>>>glusterfsd process jumps to number of processor cores 
>>>>>>>>>>>>>>available (800% or 1200%, depending on the pair of nodes 
>>>>>>>>>>>>>>involved) and the load average on the machine goes very 
>>>>>>>>>>>>>>high (~20). The volume's heal statistics output shows that 
>>>>>>>>>>>>>>it is crawling one of the bricks and trying to heal, but 
>>>>>>>>>>>>>>this crawl hangs and never seems to finish.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>The number of files in the xattrop directory varies over 
>>>>>>>>>>>>>>time, so I ran a wc -l as you requested periodically for 
>>>>>>>>>>>>>>some time and then started including a datestamped list of 
>>>>>>>>>>>>>>the files that were in the xattrops directory on each 
>>>>>>>>>>>>>>brick to see which were persistent. All bricks had files 
>>>>>>>>>>>>>>in the xattrop folder, so all results are attached.
>>>>>>>>>>>>>Thanks this info is helpful. I don't see a lot of files. 
>>>>>>>>>>>>>Could you give output of "gluster volume heal <volname> 
>>>>>>>>>>>>>info"? Is there any directory in there which is LARGE?
>>>>>>>>>>>>>
>>>>>>>>>>>>>Pranith
>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>Please let me know if there is anything else I can 
>>>>>>>>>>>>>>provide.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>Patrick
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>On Thu, Jan 21, 2016 at 12:01 AM, Pranith Kumar Karampuri 
>>>>>>>>>>>>>><pkarampu at redhat.com> wrote:
>>>>>>>>>>>>>>>hey,
>>>>>>>>>>>>>>>        Which process is consuming so much cpu? I went 
>>>>>>>>>>>>>>>through the logs you gave me. I see that the following 
>>>>>>>>>>>>>>>files are in gfid mismatch state:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>><066e4525-8f8b-43aa-b7a1-86bbcecc68b9/safebrowsing-backup>,
>>>>>>>>>>>>>>><1d48754b-b38c-403d-94e2-0f5c41d5f885/recovery.bak>,
>>>>>>>>>>>>>>><ddc92637-303a-4059-9c56-ab23b1bb6ae9/patch0008.cnvrg>,
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>Could you give me the output of "ls 
>>>>>>>>>>>>>>><brick-path>/indices/xattrop | wc -l" output on all the 
>>>>>>>>>>>>>>>bricks which are acting this way? This will tell us the 
>>>>>>>>>>>>>>>number of pending self-heals on the system.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>Pranith
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>On 01/20/2016 09:26 PM, David Robinson wrote:
>>>>>>>>>>>>>>>>resending with parsed logs...
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>I am having issues with 3.6.6 where the load will 
>>>>>>>>>>>>>>>>>>spike up to 800% for one of the glusterfsd processes 
>>>>>>>>>>>>>>>>>>and the users can no longer access the system.  If I 
>>>>>>>>>>>>>>>>>>reboot the node, the heal will finish normally after a 
>>>>>>>>>>>>>>>>>>few minutes and the system will be responsive, but a 
>>>>>>>>>>>>>>>>>>few hours later the issue will start again.  It look 
>>>>>>>>>>>>>>>>>>like it is hanging in a heal and spinning up the load 
>>>>>>>>>>>>>>>>>>on one of the bricks.  The heal gets stuck and says it 
>>>>>>>>>>>>>>>>>>is crawling and never returns.  After a few minutes of 
>>>>>>>>>>>>>>>>>>the heal saying it is crawling, the load spikes up and 
>>>>>>>>>>>>>>>>>>the mounts become unresponsive.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>Any suggestions on how to fix this?  It has us stopped 
>>>>>>>>>>>>>>>>>>cold as the user can no longer access the systems when 
>>>>>>>>>>>>>>>>>>the load spikes... Logs attached.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>System setup info is:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>[root at gfs01a ~]# gluster volume info homegfs
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>Volume Name: homegfs
>>>>>>>>>>>>>>>>>>Type: Distributed-Replicate
>>>>>>>>>>>>>>>>>>Volume ID: 1e32672a-f1b7-4b58-ba94-58c085e59071
>>>>>>>>>>>>>>>>>>Status: Started
>>>>>>>>>>>>>>>>>>Number of Bricks: 4 x 2 = 8
>>>>>>>>>>>>>>>>>>Transport-type: tcp
>>>>>>>>>>>>>>>>>>Bricks:
>>>>>>>>>>>>>>>>>>Brick1: gfsib01a.corvidtec.com:/data/brick01a/homegfs
>>>>>>>>>>>>>>>>>>Brick2: gfsib01b.corvidtec.com:/data/brick01b/homegfs
>>>>>>>>>>>>>>>>>>Brick3: gfsib01a.corvidtec.com:/data/brick02a/homegfs
>>>>>>>>>>>>>>>>>>Brick4: gfsib01b.corvidtec.com:/data/brick02b/homegfs
>>>>>>>>>>>>>>>>>>Brick5: gfsib02a.corvidtec.com:/data/brick01a/homegfs
>>>>>>>>>>>>>>>>>>Brick6: gfsib02b.corvidtec.com:/data/brick01b/homegfs
>>>>>>>>>>>>>>>>>>Brick7: gfsib02a.corvidtec.com:/data/brick02a/homegfs
>>>>>>>>>>>>>>>>>>Brick8: gfsib02b.corvidtec.com:/data/brick02b/homegfs
>>>>>>>>>>>>>>>>>>Options Reconfigured:
>>>>>>>>>>>>>>>>>>performance.io-thread-count: 32
>>>>>>>>>>>>>>>>>>performance.cache-size: 128MB
>>>>>>>>>>>>>>>>>>performance.write-behind-window-size: 128MB
>>>>>>>>>>>>>>>>>>server.allow-insecure: on
>>>>>>>>>>>>>>>>>>network.ping-timeout: 42
>>>>>>>>>>>>>>>>>>storage.owner-gid: 100
>>>>>>>>>>>>>>>>>>geo-replication.indexing: off
>>>>>>>>>>>>>>>>>>geo-replication.ignore-pid-check: on
>>>>>>>>>>>>>>>>>>changelog.changelog: off
>>>>>>>>>>>>>>>>>>changelog.fsync-interval: 3
>>>>>>>>>>>>>>>>>>changelog.rollover-time: 15
>>>>>>>>>>>>>>>>>>server.manage-gids: on
>>>>>>>>>>>>>>>>>>diagnostics.client-log-level: WARNING
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>[root at gfs01a ~]# rpm -qa | grep gluster
>>>>>>>>>>>>>>>>>>gluster-nagios-common-0.1.1-0.el6.noarch
>>>>>>>>>>>>>>>>>>glusterfs-fuse-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-debuginfo-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-libs-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-geo-replication-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-api-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-devel-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-api-devel-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-cli-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-rdma-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>samba-vfs-glusterfs-4.1.11-2.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-server-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>glusterfs-extra-xlators-3.6.6-1.el6.x86_64
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>_______________________________________________ 
>>>>>>>>>>>>>>>>Gluster-devel mailing list 
>>>>>>>>>>>>>>>>Gluster-devel at gluster.orghttp://www.gluster.org/mailman/listinfo/gluster-devel
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>_______________________________________________
>>>>>>>>>>>>>>>Gluster-users mailing list
>>>>>>>>>>>>>>>Gluster-users at gluster.org
>>>>>>>>>>>>>>>http://www.gluster.org/mailman/listinfo/gluster-users
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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