[Gluster-users] Message repeated over and over after upgrade from 4.1 to 5.3: W [dict.c:761:dict_ref] (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329) [0x7fd966fcd329] -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5) [0x7fd9671deaf5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58) [0x7fd9731ea218] ) 2-dict: dict is NULL [Invalid argument]

Raghavendra Gowdappa rgowdapp at redhat.com
Fri Feb 8 11:44:17 UTC 2019 

On Fri, Feb 8, 2019 at 8:50 AM Raghavendra Gowdappa <rgowdapp at redhat.com>
wrote:

>
>
> On Fri, Feb 8, 2019 at 8:48 AM Raghavendra Gowdappa <rgowdapp at redhat.com>
> wrote:
>
>> One possible reason could be
>> https://review.gluster.org/r/18b6d7ce7d490e807815270918a17a4b392a829d
>>
>
>  https://review.gluster.org/#/c/glusterfs/+/19997/
>

This patch is not in release-5.0 branch.


> as that changed some code in epoll handler. Though the change is largely
>> on server side, the epoll and socket changes are relevant for client too.
>> I'll try to see whether there is anything wrong with that.
>>
>> On Fri, Feb 8, 2019 at 8:36 AM Nithya Balachandran <nbalacha at redhat.com>
>> wrote:
>>
>>> Thanks Artem. Can you send us the coredump or the bt with symbols from
>>> the crash?
>>>
>>> Regards,
>>> Nithya
>>>
>>> On Fri, 8 Feb 2019 at 06:51, Artem Russakovskii <archon810 at gmail.com>
>>> wrote:
>>>
>>>> Sorry to disappoint, but the crash just happened again, so lru-limit=0
>>>> didn't help.
>>>>
>>>> Here's the snippet of the crash and the subsequent remount by monit.
>>>>
>>>>
>>>> [2019-02-08 01:13:05.854391] W [dict.c:761:dict_ref]
>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>> [0x7f4402b99329]
>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>> [0x7f4402daaaf5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>> [0x7f440b6b5218] ) 0-dict: dict is NULL [In
>>>> valid argument]
>>>> The message "I [MSGID: 108031]
>>>> [afr-common.c:2543:afr_local_discovery_cbk] 0-<SNIP>_data1-replicate-0:
>>>> selecting local read_child <SNIP>_data1-client-3" repeated 39 times between
>>>> [2019-02-08 01:11:18.043286] and [2019-02-08 01:13:07.915604]
>>>> The message "E [MSGID: 101191]
>>>> [event-epoll.c:671:event_dispatch_epoll_worker] 0-epoll: Failed to dispatch
>>>> handler" repeated 515 times between [2019-02-08 01:11:17.932515] and
>>>> [2019-02-08 01:13:09.311554]
>>>> pending frames:
>>>> frame : type(1) op(LOOKUP)
>>>> frame : type(0) op(0)
>>>> patchset: git://git.gluster.org/glusterfs.git
>>>> signal received: 6
>>>> time of crash:
>>>> 2019-02-08 01:13:09
>>>> configuration details:
>>>> argp 1
>>>> backtrace 1
>>>> dlfcn 1
>>>> libpthread 1
>>>> llistxattr 1
>>>> setfsid 1
>>>> spinlock 1
>>>> epoll.h 1
>>>> xattr.h 1
>>>> st_atim.tv_nsec 1
>>>> package-string: glusterfs 5.3
>>>> /usr/lib64/libglusterfs.so.0(+0x2764c)[0x7f440b6c064c]
>>>> /usr/lib64/libglusterfs.so.0(gf_print_trace+0x306)[0x7f440b6cacb6]
>>>> /lib64/libc.so.6(+0x36160)[0x7f440a887160]
>>>> /lib64/libc.so.6(gsignal+0x110)[0x7f440a8870e0]
>>>> /lib64/libc.so.6(abort+0x151)[0x7f440a8886c1]
>>>> /lib64/libc.so.6(+0x2e6fa)[0x7f440a87f6fa]
>>>> /lib64/libc.so.6(+0x2e772)[0x7f440a87f772]
>>>> /lib64/libpthread.so.0(pthread_mutex_lock+0x228)[0x7f440ac150b8]
>>>>
>>>> /usr/lib64/glusterfs/5.3/xlator/cluster/replicate.so(+0x5dc9d)[0x7f44036f8c9d]
>>>>
>>>> /usr/lib64/glusterfs/5.3/xlator/cluster/replicate.so(+0x70ba1)[0x7f440370bba1]
>>>>
>>>> /usr/lib64/glusterfs/5.3/xlator/protocol/client.so(+0x58f3f)[0x7f4403990f3f]
>>>> /usr/lib64/libgfrpc.so.0(+0xe820)[0x7f440b48b820]
>>>> /usr/lib64/libgfrpc.so.0(+0xeb6f)[0x7f440b48bb6f]
>>>> /usr/lib64/libgfrpc.so.0(rpc_transport_notify+0x23)[0x7f440b488063]
>>>>
>>>> /usr/lib64/glusterfs/5.3/rpc-transport/socket.so(+0xa0b2)[0x7f44050a80b2]
>>>> /usr/lib64/libglusterfs.so.0(+0x854c3)[0x7f440b71e4c3]
>>>> /lib64/libpthread.so.0(+0x7559)[0x7f440ac12559]
>>>> /lib64/libc.so.6(clone+0x3f)[0x7f440a94981f]
>>>> ---------
>>>> [2019-02-08 01:13:35.628478] I [MSGID: 100030] [glusterfsd.c:2715:main]
>>>> 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 5.3
>>>> (args: /usr/sbin/glusterfs --lru-limit=0 --process-name fuse
>>>> --volfile-server=localhost --volfile-id=/<SNIP>_data1 /mnt/<SNIP>_data1)
>>>> [2019-02-08 01:13:35.637830] I [MSGID: 101190]
>>>> [event-epoll.c:622:event_dispatch_epoll_worker] 0-epoll: Started thread
>>>> with index 1
>>>> [2019-02-08 01:13:35.651405] I [MSGID: 101190]
>>>> [event-epoll.c:622:event_dispatch_epoll_worker] 0-epoll: Started thread
>>>> with index 2
>>>> [2019-02-08 01:13:35.651628] I [MSGID: 101190]
>>>> [event-epoll.c:622:event_dispatch_epoll_worker] 0-epoll: Started thread
>>>> with index 3
>>>> [2019-02-08 01:13:35.651747] I [MSGID: 101190]
>>>> [event-epoll.c:622:event_dispatch_epoll_worker] 0-epoll: Started thread
>>>> with index 4
>>>> [2019-02-08 01:13:35.652575] I [MSGID: 114020] [client.c:2354:notify]
>>>> 0-<SNIP>_data1-client-0: parent translators are ready, attempting connect
>>>> on transport
>>>> [2019-02-08 01:13:35.652978] I [MSGID: 114020] [client.c:2354:notify]
>>>> 0-<SNIP>_data1-client-1: parent translators are ready, attempting connect
>>>> on transport
>>>> [2019-02-08 01:13:35.655197] I [MSGID: 114020] [client.c:2354:notify]
>>>> 0-<SNIP>_data1-client-2: parent translators are ready, attempting connect
>>>> on transport
>>>> [2019-02-08 01:13:35.655497] I [MSGID: 114020] [client.c:2354:notify]
>>>> 0-<SNIP>_data1-client-3: parent translators are ready, attempting connect
>>>> on transport
>>>> [2019-02-08 01:13:35.655527] I [rpc-clnt.c:2042:rpc_clnt_reconfig]
>>>> 0-<SNIP>_data1-client-0: changing port to 49153 (from 0)
>>>> Final graph:
>>>>
>>>>
>>>> Sincerely,
>>>> Artem
>>>>
>>>> --
>>>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>>>> <http://www.apkmirror.com/>, Illogical Robot LLC
>>>> beerpla.net | +ArtemRussakovskii
>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>> <http://twitter.com/ArtemR>
>>>>
>>>>
>>>> On Thu, Feb 7, 2019 at 1:28 PM Artem Russakovskii <archon810 at gmail.com>
>>>> wrote:
>>>>
>>>>> I've added the lru-limit=0 parameter to the mounts, and I see it's
>>>>> taken effect correctly:
>>>>> "/usr/sbin/glusterfs --lru-limit=0 --process-name fuse
>>>>> --volfile-server=localhost --volfile-id=/<SNIP>  /mnt/<SNIP>"
>>>>>
>>>>> Let's see if it stops crashing or not.
>>>>>
>>>>> Sincerely,
>>>>> Artem
>>>>>
>>>>> --
>>>>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>>>>> <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>> beerpla.net | +ArtemRussakovskii
>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>> <http://twitter.com/ArtemR>
>>>>>
>>>>>
>>>>> On Wed, Feb 6, 2019 at 10:48 AM Artem Russakovskii <
>>>>> archon810 at gmail.com> wrote:
>>>>>
>>>>>> Hi Nithya,
>>>>>>
>>>>>> Indeed, I upgraded from 4.1 to 5.3, at which point I started seeing
>>>>>> crashes, and no further releases have been made yet.
>>>>>>
>>>>>> volume info:
>>>>>> Type: Replicate
>>>>>> Volume ID: ****SNIP****
>>>>>> Status: Started
>>>>>> Snapshot Count: 0
>>>>>> Number of Bricks: 1 x 4 = 4
>>>>>> Transport-type: tcp
>>>>>> Bricks:
>>>>>> Brick1: ****SNIP****
>>>>>> Brick2: ****SNIP****
>>>>>> Brick3: ****SNIP****
>>>>>> Brick4: ****SNIP****
>>>>>> Options Reconfigured:
>>>>>> cluster.quorum-count: 1
>>>>>> cluster.quorum-type: fixed
>>>>>> network.ping-timeout: 5
>>>>>> network.remote-dio: enable
>>>>>> performance.rda-cache-limit: 256MB
>>>>>> performance.readdir-ahead: on
>>>>>> performance.parallel-readdir: on
>>>>>> network.inode-lru-limit: 500000
>>>>>> performance.md-cache-timeout: 600
>>>>>> performance.cache-invalidation: on
>>>>>> performance.stat-prefetch: on
>>>>>> features.cache-invalidation-timeout: 600
>>>>>> features.cache-invalidation: on
>>>>>> cluster.readdir-optimize: on
>>>>>> performance.io-thread-count: 32
>>>>>> server.event-threads: 4
>>>>>> client.event-threads: 4
>>>>>> performance.read-ahead: off
>>>>>> cluster.lookup-optimize: on
>>>>>> performance.cache-size: 1GB
>>>>>> cluster.self-heal-daemon: enable
>>>>>> transport.address-family: inet
>>>>>> nfs.disable: on
>>>>>> performance.client-io-threads: on
>>>>>> cluster.granular-entry-heal: enable
>>>>>> cluster.data-self-heal-algorithm: full
>>>>>>
>>>>>> Sincerely,
>>>>>> Artem
>>>>>>
>>>>>> --
>>>>>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>>>>>> <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>>> beerpla.net | +ArtemRussakovskii
>>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>>> <http://twitter.com/ArtemR>
>>>>>>
>>>>>>
>>>>>> On Wed, Feb 6, 2019 at 12:20 AM Nithya Balachandran <
>>>>>> nbalacha at redhat.com> wrote:
>>>>>>
>>>>>>> Hi Artem,
>>>>>>>
>>>>>>> Do you still see the crashes with 5.3? If yes, please try mount the
>>>>>>> volume using the mount option lru-limit=0 and see if that helps. We are
>>>>>>> looking into the crashes and will update when have a fix.
>>>>>>>
>>>>>>> Also, please provide the gluster volume info for the volume in
>>>>>>> question.
>>>>>>>
>>>>>>>
>>>>>>> regards,
>>>>>>> Nithya
>>>>>>>
>>>>>>> On Tue, 5 Feb 2019 at 05:31, Artem Russakovskii <archon810 at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> The fuse crash happened two more times, but this time monit helped
>>>>>>>> recover within 1 minute, so it's a great workaround for now.
>>>>>>>>
>>>>>>>> What's odd is that the crashes are only happening on one of 4
>>>>>>>> servers, and I don't know why.
>>>>>>>>
>>>>>>>> Sincerely,
>>>>>>>> Artem
>>>>>>>>
>>>>>>>> --
>>>>>>>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>>>>>>>> <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>>>>> beerpla.net | +ArtemRussakovskii
>>>>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>>>>> <http://twitter.com/ArtemR>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sat, Feb 2, 2019 at 12:14 PM Artem Russakovskii <
>>>>>>>> archon810 at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> The fuse crash happened again yesterday, to another volume. Are
>>>>>>>>> there any mount options that could help mitigate this?
>>>>>>>>>
>>>>>>>>> In the meantime, I set up a monit (https://mmonit.com/monit/)
>>>>>>>>> task to watch and restart the mount, which works and recovers the mount
>>>>>>>>> point within a minute. Not ideal, but a temporary workaround.
>>>>>>>>>
>>>>>>>>> By the way, the way to reproduce this "Transport endpoint is not
>>>>>>>>> connected" condition for testing purposes is to kill -9 the right
>>>>>>>>> "glusterfs --process-name fuse" process.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> monit check:
>>>>>>>>> check filesystem glusterfs_data1 with path /mnt/glusterfs_data1
>>>>>>>>>   start program  = "/bin/mount  /mnt/glusterfs_data1"
>>>>>>>>>   stop program  = "/bin/umount /mnt/glusterfs_data1"
>>>>>>>>>   if space usage > 90% for 5 times within 15 cycles
>>>>>>>>>     then alert else if succeeded for 10 cycles then alert
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> stack trace:
>>>>>>>>> [2019-02-01 23:22:00.312894] W [dict.c:761:dict_ref]
>>>>>>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>>>>>>> [0x7fa0249e4329]
>>>>>>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>>>>>>> [0x7fa024bf5af5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>>>>>>> [0x7fa02cf5b218] ) 0-dict: dict is NULL [Invalid argument]
>>>>>>>>> [2019-02-01 23:22:00.314051] W [dict.c:761:dict_ref]
>>>>>>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>>>>>>> [0x7fa0249e4329]
>>>>>>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>>>>>>> [0x7fa024bf5af5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>>>>>>> [0x7fa02cf5b218] ) 0-dict: dict is NULL [Invalid argument]
>>>>>>>>> The message "E [MSGID: 101191]
>>>>>>>>> [event-epoll.c:671:event_dispatch_epoll_worker] 0-epoll: Failed to dispatch
>>>>>>>>> handler" repeated 26 times between [2019-02-01 23:21:20.857333] and
>>>>>>>>> [2019-02-01 23:21:56.164427]
>>>>>>>>> The message "I [MSGID: 108031]
>>>>>>>>> [afr-common.c:2543:afr_local_discovery_cbk] 0-SITE_data3-replicate-0:
>>>>>>>>> selecting local read_child SITE_data3-client-3" repeated 27 times between
>>>>>>>>> [2019-02-01 23:21:11.142467] and [2019-02-01 23:22:03.474036]
>>>>>>>>> pending frames:
>>>>>>>>> frame : type(1) op(LOOKUP)
>>>>>>>>> frame : type(0) op(0)
>>>>>>>>> patchset: git://git.gluster.org/glusterfs.git
>>>>>>>>> signal received: 6
>>>>>>>>> time of crash:
>>>>>>>>> 2019-02-01 23:22:03
>>>>>>>>> configuration details:
>>>>>>>>> argp 1
>>>>>>>>> backtrace 1
>>>>>>>>> dlfcn 1
>>>>>>>>> libpthread 1
>>>>>>>>> llistxattr 1
>>>>>>>>> setfsid 1
>>>>>>>>> spinlock 1
>>>>>>>>> epoll.h 1
>>>>>>>>> xattr.h 1
>>>>>>>>> st_atim.tv_nsec 1
>>>>>>>>> package-string: glusterfs 5.3
>>>>>>>>> /usr/lib64/libglusterfs.so.0(+0x2764c)[0x7fa02cf6664c]
>>>>>>>>> /usr/lib64/libglusterfs.so.0(gf_print_trace+0x306)[0x7fa02cf70cb6]
>>>>>>>>> /lib64/libc.so.6(+0x36160)[0x7fa02c12d160]
>>>>>>>>> /lib64/libc.so.6(gsignal+0x110)[0x7fa02c12d0e0]
>>>>>>>>> /lib64/libc.so.6(abort+0x151)[0x7fa02c12e6c1]
>>>>>>>>> /lib64/libc.so.6(+0x2e6fa)[0x7fa02c1256fa]
>>>>>>>>> /lib64/libc.so.6(+0x2e772)[0x7fa02c125772]
>>>>>>>>> /lib64/libpthread.so.0(pthread_mutex_lock+0x228)[0x7fa02c4bb0b8]
>>>>>>>>>
>>>>>>>>> /usr/lib64/glusterfs/5.3/xlator/cluster/replicate.so(+0x5dc9d)[0x7fa025543c9d]
>>>>>>>>>
>>>>>>>>> /usr/lib64/glusterfs/5.3/xlator/cluster/replicate.so(+0x70ba1)[0x7fa025556ba1]
>>>>>>>>>
>>>>>>>>> /usr/lib64/glusterfs/5.3/xlator/protocol/client.so(+0x58f3f)[0x7fa0257dbf3f]
>>>>>>>>> /usr/lib64/libgfrpc.so.0(+0xe820)[0x7fa02cd31820]
>>>>>>>>> /usr/lib64/libgfrpc.so.0(+0xeb6f)[0x7fa02cd31b6f]
>>>>>>>>> /usr/lib64/libgfrpc.so.0(rpc_transport_notify+0x23)[0x7fa02cd2e063]
>>>>>>>>>
>>>>>>>>> /usr/lib64/glusterfs/5.3/rpc-transport/socket.so(+0xa0b2)[0x7fa02694e0b2]
>>>>>>>>> /usr/lib64/libglusterfs.so.0(+0x854c3)[0x7fa02cfc44c3]
>>>>>>>>> /lib64/libpthread.so.0(+0x7559)[0x7fa02c4b8559]
>>>>>>>>> /lib64/libc.so.6(clone+0x3f)[0x7fa02c1ef81f]
>>>>>>>>>
>>>>>>>>> Sincerely,
>>>>>>>>> Artem
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>>>>>>>>> <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>>>>>> beerpla.net | +ArtemRussakovskii
>>>>>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>>>>>> <http://twitter.com/ArtemR>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Fri, Feb 1, 2019 at 9:03 AM Artem Russakovskii <
>>>>>>>>> archon810 at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> The first (and so far only) crash happened at 2am the next day
>>>>>>>>>> after we upgraded, on only one of four servers and only to one of two
>>>>>>>>>> mounts.
>>>>>>>>>>
>>>>>>>>>> I have no idea what caused it, but yeah, we do have a pretty busy
>>>>>>>>>> site (apkmirror.com), and it caused a disruption for any uploads
>>>>>>>>>> or downloads from that server until I woke up and fixed the mount.
>>>>>>>>>>
>>>>>>>>>> I wish I could be more helpful but all I have is that stack
>>>>>>>>>> trace.
>>>>>>>>>>
>>>>>>>>>> I'm glad it's a blocker and will hopefully be resolved soon.
>>>>>>>>>>
>>>>>>>>>> On Thu, Jan 31, 2019, 7:26 PM Amar Tumballi Suryanarayan <
>>>>>>>>>> atumball at redhat.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Hi Artem,
>>>>>>>>>>>
>>>>>>>>>>> Opened https://bugzilla.redhat.com/show_bug.cgi?id=1671603 (ie,
>>>>>>>>>>> as a clone of other bugs where recent discussions happened), and marked it
>>>>>>>>>>> as a blocker for glusterfs-5.4 release.
>>>>>>>>>>>
>>>>>>>>>>> We already have fixes for log flooding -
>>>>>>>>>>> https://review.gluster.org/22128, and are the process of
>>>>>>>>>>> identifying and fixing the issue seen with crash.
>>>>>>>>>>>
>>>>>>>>>>> Can you please tell if the crashes happened as soon as upgrade ?
>>>>>>>>>>> or was there any particular pattern you observed before the crash.
>>>>>>>>>>>
>>>>>>>>>>> -Amar
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Thu, Jan 31, 2019 at 11:40 PM Artem Russakovskii <
>>>>>>>>>>> archon810 at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Within 24 hours after updating from rock solid 4.1 to 5.3, I
>>>>>>>>>>>> already got a crash which others have mentioned in
>>>>>>>>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1313567 and had to
>>>>>>>>>>>> unmount, kill gluster, and remount:
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> [2019-01-31 09:38:04.317604] W [dict.c:761:dict_ref]
>>>>>>>>>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>>>>>>>>>> [0x7fcccafcd329]
>>>>>>>>>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>>>>>>>>>> [0x7fcccb1deaf5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>>>>>>>>>> [0x7fccd705b218] ) 2-dict: dict is NULL [Invalid argument]
>>>>>>>>>>>> [2019-01-31 09:38:04.319308] W [dict.c:761:dict_ref]
>>>>>>>>>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>>>>>>>>>> [0x7fcccafcd329]
>>>>>>>>>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>>>>>>>>>> [0x7fcccb1deaf5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>>>>>>>>>> [0x7fccd705b218] ) 2-dict: dict is NULL [Invalid argument]
>>>>>>>>>>>> [2019-01-31 09:38:04.320047] W [dict.c:761:dict_ref]
>>>>>>>>>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>>>>>>>>>> [0x7fcccafcd329]
>>>>>>>>>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>>>>>>>>>> [0x7fcccb1deaf5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>>>>>>>>>> [0x7fccd705b218] ) 2-dict: dict is NULL [Invalid argument]
>>>>>>>>>>>> [2019-01-31 09:38:04.320677] W [dict.c:761:dict_ref]
>>>>>>>>>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>>>>>>>>>> [0x7fcccafcd329]
>>>>>>>>>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>>>>>>>>>> [0x7fcccb1deaf5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>>>>>>>>>> [0x7fccd705b218] ) 2-dict: dict is NULL [Invalid argument]
>>>>>>>>>>>> The message "I [MSGID: 108031]
>>>>>>>>>>>> [afr-common.c:2543:afr_local_discovery_cbk] 2-SITE_data1-replicate-0:
>>>>>>>>>>>> selecting local read_child SITE_data1-client-3" repeated 5 times between
>>>>>>>>>>>> [2019-01-31 09:37:54.751905] and [2019-01-31 09:38:03.958061]
>>>>>>>>>>>> The message "E [MSGID: 101191]
>>>>>>>>>>>> [event-epoll.c:671:event_dispatch_epoll_worker] 2-epoll: Failed to dispatch
>>>>>>>>>>>> handler" repeated 72 times between [2019-01-31 09:37:53.746741] and
>>>>>>>>>>>> [2019-01-31 09:38:04.696993]
>>>>>>>>>>>> pending frames:
>>>>>>>>>>>> frame : type(1) op(READ)
>>>>>>>>>>>> frame : type(1) op(OPEN)
>>>>>>>>>>>> frame : type(0) op(0)
>>>>>>>>>>>> patchset: git://git.gluster.org/glusterfs.git
>>>>>>>>>>>> signal received: 6
>>>>>>>>>>>> time of crash:
>>>>>>>>>>>> 2019-01-31 09:38:04
>>>>>>>>>>>> configuration details:
>>>>>>>>>>>> argp 1
>>>>>>>>>>>> backtrace 1
>>>>>>>>>>>> dlfcn 1
>>>>>>>>>>>> libpthread 1
>>>>>>>>>>>> llistxattr 1
>>>>>>>>>>>> setfsid 1
>>>>>>>>>>>> spinlock 1
>>>>>>>>>>>> epoll.h 1
>>>>>>>>>>>> xattr.h 1
>>>>>>>>>>>> st_atim.tv_nsec 1
>>>>>>>>>>>> package-string: glusterfs 5.3
>>>>>>>>>>>> /usr/lib64/libglusterfs.so.0(+0x2764c)[0x7fccd706664c]
>>>>>>>>>>>>
>>>>>>>>>>>> /usr/lib64/libglusterfs.so.0(gf_print_trace+0x306)[0x7fccd7070cb6]
>>>>>>>>>>>> /lib64/libc.so.6(+0x36160)[0x7fccd622d160]
>>>>>>>>>>>> /lib64/libc.so.6(gsignal+0x110)[0x7fccd622d0e0]
>>>>>>>>>>>> /lib64/libc.so.6(abort+0x151)[0x7fccd622e6c1]
>>>>>>>>>>>> /lib64/libc.so.6(+0x2e6fa)[0x7fccd62256fa]
>>>>>>>>>>>> /lib64/libc.so.6(+0x2e772)[0x7fccd6225772]
>>>>>>>>>>>> /lib64/libpthread.so.0(pthread_mutex_lock+0x228)[0x7fccd65bb0b8]
>>>>>>>>>>>>
>>>>>>>>>>>> /usr/lib64/glusterfs/5.3/xlator/cluster/replicate.so(+0x32c4d)[0x7fcccbb01c4d]
>>>>>>>>>>>>
>>>>>>>>>>>> /usr/lib64/glusterfs/5.3/xlator/protocol/client.so(+0x65778)[0x7fcccbdd1778]
>>>>>>>>>>>> /usr/lib64/libgfrpc.so.0(+0xe820)[0x7fccd6e31820]
>>>>>>>>>>>> /usr/lib64/libgfrpc.so.0(+0xeb6f)[0x7fccd6e31b6f]
>>>>>>>>>>>>
>>>>>>>>>>>> /usr/lib64/libgfrpc.so.0(rpc_transport_notify+0x23)[0x7fccd6e2e063]
>>>>>>>>>>>>
>>>>>>>>>>>> /usr/lib64/glusterfs/5.3/rpc-transport/socket.so(+0xa0b2)[0x7fccd0b7e0b2]
>>>>>>>>>>>> /usr/lib64/libglusterfs.so.0(+0x854c3)[0x7fccd70c44c3]
>>>>>>>>>>>> /lib64/libpthread.so.0(+0x7559)[0x7fccd65b8559]
>>>>>>>>>>>> /lib64/libc.so.6(clone+0x3f)[0x7fccd62ef81f]
>>>>>>>>>>>> ---------
>>>>>>>>>>>>
>>>>>>>>>>>> Do the pending patches fix the crash or only the repeated
>>>>>>>>>>>> warnings? I'm running glusterfs on OpenSUSE 15.0 installed via
>>>>>>>>>>>> http://download.opensuse.org/repositories/home:/glusterfs:/Leap15-5/openSUSE_Leap_15.0/,
>>>>>>>>>>>> not too sure how to make it core dump.
>>>>>>>>>>>>
>>>>>>>>>>>> If it's not fixed by the patches above, has anyone already
>>>>>>>>>>>> opened a ticket for the crashes that I can join and monitor? This is going
>>>>>>>>>>>> to create a massive problem for us since production systems are crashing.
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks.
>>>>>>>>>>>>
>>>>>>>>>>>> Sincerely,
>>>>>>>>>>>> Artem
>>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>> Founder, Android Police <http://www.androidpolice.com>, APK
>>>>>>>>>>>> Mirror <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>>>>>>>>> beerpla.net | +ArtemRussakovskii
>>>>>>>>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>>>>>>>>> <http://twitter.com/ArtemR>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Wed, Jan 30, 2019 at 6:37 PM Raghavendra Gowdappa <
>>>>>>>>>>>> rgowdapp at redhat.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Thu, Jan 31, 2019 at 2:14 AM Artem Russakovskii <
>>>>>>>>>>>>> archon810 at gmail.com> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Also, not sure if related or not, but I got a ton of these
>>>>>>>>>>>>>> "Failed to dispatch handler" in my logs as well. Many people have been
>>>>>>>>>>>>>> commenting about this issue here
>>>>>>>>>>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1651246.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> https://review.gluster.org/#/c/glusterfs/+/22046/ addresses
>>>>>>>>>>>>> this.
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>> ==> mnt-SITE_data1.log <==
>>>>>>>>>>>>>>> [2019-01-30 20:38:20.783713] W [dict.c:761:dict_ref]
>>>>>>>>>>>>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>>>>>>>>>>>>> [0x7fd966fcd329]
>>>>>>>>>>>>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>>>>>>>>>>>>> [0x7fd9671deaf5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>>>>>>>>>>>>> [0x7fd9731ea218] ) 2-dict: dict is NULL [Invalid argument]
>>>>>>>>>>>>>>> ==> mnt-SITE_data3.log <==
>>>>>>>>>>>>>>> The message "E [MSGID: 101191]
>>>>>>>>>>>>>>> [event-epoll.c:671:event_dispatch_epoll_worker] 2-epoll: Failed to dispatch
>>>>>>>>>>>>>>> handler" repeated 413 times between [2019-01-30 20:36:23.881090] and
>>>>>>>>>>>>>>> [2019-01-30 20:38:20.015593]
>>>>>>>>>>>>>>> The message "I [MSGID: 108031]
>>>>>>>>>>>>>>> [afr-common.c:2543:afr_local_discovery_cbk] 2-SITE_data3-replicate-0:
>>>>>>>>>>>>>>> selecting local read_child SITE_data3-client-0" repeated 42 times between
>>>>>>>>>>>>>>> [2019-01-30 20:36:23.290287] and [2019-01-30 20:38:20.280306]
>>>>>>>>>>>>>>> ==> mnt-SITE_data1.log <==
>>>>>>>>>>>>>>> The message "I [MSGID: 108031]
>>>>>>>>>>>>>>> [afr-common.c:2543:afr_local_discovery_cbk] 2-SITE_data1-replicate-0:
>>>>>>>>>>>>>>> selecting local read_child SITE_data1-client-0" repeated 50 times between
>>>>>>>>>>>>>>> [2019-01-30 20:36:22.247367] and [2019-01-30 20:38:19.459789]
>>>>>>>>>>>>>>> The message "E [MSGID: 101191]
>>>>>>>>>>>>>>> [event-epoll.c:671:event_dispatch_epoll_worker] 2-epoll: Failed to dispatch
>>>>>>>>>>>>>>> handler" repeated 2654 times between [2019-01-30 20:36:22.667327] and
>>>>>>>>>>>>>>> [2019-01-30 20:38:20.546355]
>>>>>>>>>>>>>>> [2019-01-30 20:38:21.492319] I [MSGID: 108031]
>>>>>>>>>>>>>>> [afr-common.c:2543:afr_local_discovery_cbk] 2-SITE_data1-replicate-0:
>>>>>>>>>>>>>>> selecting local read_child SITE_data1-client-0
>>>>>>>>>>>>>>> ==> mnt-SITE_data3.log <==
>>>>>>>>>>>>>>> [2019-01-30 20:38:22.349689] I [MSGID: 108031]
>>>>>>>>>>>>>>> [afr-common.c:2543:afr_local_discovery_cbk] 2-SITE_data3-replicate-0:
>>>>>>>>>>>>>>> selecting local read_child SITE_data3-client-0
>>>>>>>>>>>>>>> ==> mnt-SITE_data1.log <==
>>>>>>>>>>>>>>> [2019-01-30 20:38:22.762941] E [MSGID: 101191]
>>>>>>>>>>>>>>> [event-epoll.c:671:event_dispatch_epoll_worker] 2-epoll: Failed to dispatch
>>>>>>>>>>>>>>> handler
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I'm hoping raising the issue here on the mailing list may
>>>>>>>>>>>>>> bring some additional eyeballs and get them both fixed.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Sincerely,
>>>>>>>>>>>>>> Artem
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> Founder, Android Police <http://www.androidpolice.com>, APK
>>>>>>>>>>>>>> Mirror <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>>>>>>>>>>> beerpla.net | +ArtemRussakovskii
>>>>>>>>>>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>>>>>>>>>>> <http://twitter.com/ArtemR>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Wed, Jan 30, 2019 at 12:26 PM Artem Russakovskii <
>>>>>>>>>>>>>> archon810 at gmail.com> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> I found a similar issue here:
>>>>>>>>>>>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1313567.
>>>>>>>>>>>>>>> There's a comment from 3 days ago from someone else with 5.3 who started
>>>>>>>>>>>>>>> seeing the spam.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Here's the command that repeats over and over:
>>>>>>>>>>>>>>> [2019-01-30 20:23:24.481581] W [dict.c:761:dict_ref]
>>>>>>>>>>>>>>> (-->/usr/lib64/glusterfs/5.3/xlator/performance/quick-read.so(+0x7329)
>>>>>>>>>>>>>>> [0x7fd966fcd329]
>>>>>>>>>>>>>>> -->/usr/lib64/glusterfs/5.3/xlator/performance/io-cache.so(+0xaaf5)
>>>>>>>>>>>>>>> [0x7fd9671deaf5] -->/usr/lib64/libglusterfs.so.0(dict_ref+0x58)
>>>>>>>>>>>>>>> [0x7fd9731ea218] ) 2-dict: dict is NULL [Invalid argument]
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>> +Milind Changire <mchangir at redhat.com> Can you check why this
>>>>>>>>>>>>> message is logged and send a fix?
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Is there any fix for this issue?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Thanks.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Sincerely,
>>>>>>>>>>>>>>> Artem
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>> Founder, Android Police <http://www.androidpolice.com>, APK
>>>>>>>>>>>>>>> Mirror <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>>>>>>>>>>>> beerpla.net | +ArtemRussakovskii
>>>>>>>>>>>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>>>>>>>>>>>> <http://twitter.com/ArtemR>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>> Gluster-users mailing list
>>>>>>>>>>>>>> Gluster-users at gluster.org
>>>>>>>>>>>>>> https://lists.gluster.org/mailman/listinfo/gluster-users
>>>>>>>>>>>>>
>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>> Gluster-users mailing list
>>>>>>>>>>>> Gluster-users at gluster.org
>>>>>>>>>>>> https://lists.gluster.org/mailman/listinfo/gluster-users
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> Amar Tumballi (amarts)
>>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>> Gluster-users mailing list
>>>>>>>> Gluster-users at gluster.org
>>>>>>>> https://lists.gluster.org/mailman/listinfo/gluster-users
>>>>>>>
>>>>>>> _______________________________________________
>>> Gluster-users mailing list
>>> Gluster-users at gluster.org
>>> https://lists.gluster.org/mailman/listinfo/gluster-users
>>
>>
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