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

Thu Jan 21 14:55:52 UTC 2016

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.

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
>
>
>
>
>
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>
>
>
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