[Gluster-users] Glusterd proccess hangs on reboot

Serkan Çoban cobanserkan at gmail.com
Mon Sep 4 11:58:04 UTC 2017 

>1. On 80 nodes cluster, did you reboot only one node or multiple ones?
Tried both, result is same, but the logs/stacks are from stopping and
starting glusterd only on one server while others are running.

>2. Are you sure that pstack output was always constantly pointing on strcmp being stuck?
It stays 70-80 minutes in %100 cpu consuming state, the stacks I send
is from first 5-10 minutes. I will capture stack traces with 10
minutes waits and send them to you tomorrow. Also with 40 servers It
stays that way for 5 minutes and then returns to normal.

>3. Are you absolutely sure even after few hours glusterd is stuck at the same point?
It goes to normal state after 70-80 minutes and I can run cluster
commands after that. I will check this again to be sure..

On Mon, Sep 4, 2017 at 1:43 PM, Atin Mukherjee <amukherj at redhat.com> wrote:
>
>
> On Fri, Sep 1, 2017 at 8:47 AM, Milind Changire <mchangir at redhat.com> wrote:
>>
>> Serkan,
>> I have gone through other mails in the mail thread as well but responding
>> to this one specifically.
>>
>> Is this a source install or an RPM install ?
>> If this is an RPM install, could you please install the
>> glusterfs-debuginfo RPM and retry to capture the gdb backtrace.
>>
>> If this is a source install, then you'll need to configure the build with
>> --enable-debug and reinstall and retry capturing the gdb backtrace.
>>
>> Having the debuginfo package or a debug build helps to resolve the
>> function names and/or line numbers.
>> --
>> Milind
>>
>>
>>
>> On Thu, Aug 24, 2017 at 11:19 AM, Serkan Çoban <cobanserkan at gmail.com>
>> wrote:
>>>
>>> Here you can find 10 stack trace samples from glusterd. I wait 10
>>> seconds between each trace.
>>> https://www.dropbox.com/s/9f36goq5xn3p1yt/glusterd_pstack.zip?dl=0
>>>
>>> Content of the first stack trace is here:
>>>
>>> Thread 8 (Thread 0x7f7a8cd4e700 (LWP 43069)):
>>> #0  0x0000003aa5c0f00d in nanosleep () from /lib64/libpthread.so.0
>>> #1  0x000000303f837d57 in ?? () from /usr/lib64/libglusterfs.so.0
>>> #2  0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0
>>> #3  0x0000003aa58e8bbd in clone () from /lib64/libc.so.6
>>> Thread 7 (Thread 0x7f7a8c34d700 (LWP 43070)):
>>> #0  0x0000003aa5c0f585 in sigwait () from /lib64/libpthread.so.0
>>> #1  0x000000000040643b in glusterfs_sigwaiter ()
>>> #2  0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0
>>> #3  0x0000003aa58e8bbd in clone () from /lib64/libc.so.6
>>> Thread 6 (Thread 0x7f7a8b94c700 (LWP 43071)):
>>> #0  0x0000003aa58acc4d in nanosleep () from /lib64/libc.so.6
>>> #1  0x0000003aa58acac0 in sleep () from /lib64/libc.so.6
>>> #2  0x000000303f8528fb in pool_sweeper () from
>>> /usr/lib64/libglusterfs.so.0
>>> #3  0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0
>>> #4  0x0000003aa58e8bbd in clone () from /lib64/libc.so.6
>>> Thread 5 (Thread 0x7f7a8af4b700 (LWP 43072)):
>>> #0  0x0000003aa5c0ba5e in pthread_cond_timedwait@@GLIBC_2.3.2 () from
>>> /lib64/libpthread.so.0
>>> #1  0x000000303f864afc in syncenv_task () from
>>> /usr/lib64/libglusterfs.so.0
>>> #2  0x000000303f8729f0 in syncenv_processor () from
>>> /usr/lib64/libglusterfs.so.0
>>> #3  0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0
>>> #4  0x0000003aa58e8bbd in clone () from /lib64/libc.so.6
>>> Thread 4 (Thread 0x7f7a8a54a700 (LWP 43073)):
>>> #0  0x0000003aa5c0ba5e in pthread_cond_timedwait@@GLIBC_2.3.2 () from
>>> /lib64/libpthread.so.0
>>> #1  0x000000303f864afc in syncenv_task () from
>>> /usr/lib64/libglusterfs.so.0
>>> #2  0x000000303f8729f0 in syncenv_processor () from
>>> /usr/lib64/libglusterfs.so.0
>>> #3  0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0
>>> #4  0x0000003aa58e8bbd in clone () from /lib64/libc.so.6
>>> Thread 3 (Thread 0x7f7a886ac700 (LWP 43075)):
>>> #0  0x0000003aa5c0b68c in pthread_cond_wait@@GLIBC_2.3.2 () from
>>> /lib64/libpthread.so.0
>>> #1  0x00007f7a898a099b in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #2  0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0
>>> #3  0x0000003aa58e8bbd in clone () from /lib64/libc.so.6
>>> Thread 2 (Thread 0x7f7a87cab700 (LWP 43076)):
>>> #0  0x0000003aa5928692 in __strcmp_sse42 () from /lib64/libc.so.6
>>> #1  0x000000303f82244a in ?? () from /usr/lib64/libglusterfs.so.0
>>> #2  0x000000303f82433d in ?? () from /usr/lib64/libglusterfs.so.0
>>> #3  0x000000303f8245f5 in dict_set () from /usr/lib64/libglusterfs.so.0
>>> #4  0x000000303f82524c in dict_set_str () from
>>> /usr/lib64/libglusterfs.so.0
>>> #5  0x00007f7a898da7fd in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #6  0x00007f7a8981b0df in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #7  0x00007f7a8981b47c in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #8  0x00007f7a89831edf in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #9  0x00007f7a897f28f7 in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #10 0x00007f7a897f0bb9 in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #11 0x00007f7a8984c89a in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #12 0x00007f7a898323ee in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/xlator/mgmt/glusterd.so
>>> #13 0x000000303f40fad5 in rpc_clnt_handle_reply () from
>>> /usr/lib64/libgfrpc.so.0
>>> #14 0x000000303f410c85 in rpc_clnt_notify () from
>>> /usr/lib64/libgfrpc.so.0
>>> #15 0x000000303f40bd68 in rpc_transport_notify () from
>>> /usr/lib64/libgfrpc.so.0
>>> #16 0x00007f7a88a6fccd in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/rpc-transport/socket.so
>>> #17 0x00007f7a88a70ffe in ?? () from
>>> /usr/lib64/glusterfs/3.10.5/rpc-transport/socket.so
>>> #18 0x000000303f887806 in ?? () from /usr/lib64/libglusterfs.so.0
>>> #19 0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0
>>> #20 0x0000003aa58e8bbd in clone () from /lib64/libc.so.6
>>> Thread 1 (Thread 0x7f7a93844740 (LWP 43068)):
>>> #0  0x0000003aa5c082fd in pthread_join () from /lib64/libpthread.so.0
>>> #1  0x000000303f8872d5 in ?? () from /usr/lib64/libglusterfs.so.0
>>> #2  0x0000000000409020 in main ()
>
>
> Serkan,
>
> If you could answer the following questions, that would help us to debug
> this issue further:
>
> 1. On 80 nodes cluster, did you reboot only one node or multiple ones?
> 2. Are you sure that pstack output was always constantly pointing on strcmp
> being stuck? The reason I ask this is because on 80 nodes setup, friend
> handshake operation would be very costly due to the existing design of
> glusterd following n square mesh communication approach and making sure all
> the configuration data is consistent across and this is the exact reason why
> we want to move to GlusterD2.
> 3. Are you absolutely sure even after few hours glusterd is stuck at the
> same point?
>
> Looking at the backtrace, I don't find any reason why a strcmp will be stuck
> until and unless we're try to read through all the bricks (1600 X 3) X 79
> times.
>
>>>
>>> On Wed, Aug 23, 2017 at 8:46 PM, Atin Mukherjee <amukherj at redhat.com>
>>> wrote:
>>> > Could you be able to provide the pstack dump of the glusterd process?
>>> >
>>> > On Wed, 23 Aug 2017 at 20:22, Atin Mukherjee <amukherj at redhat.com>
>>> > wrote:
>>> >>
>>> >> Not yet. Gaurav will be taking a look at it tomorrow.
>>> >>
>>> >> On Wed, 23 Aug 2017 at 20:14, Serkan Çoban <cobanserkan at gmail.com>
>>> >> wrote:
>>> >>>
>>> >>> Hi Atin,
>>> >>>
>>> >>> Do you have time to check the logs?
>>> >>>
>>> >>> On Wed, Aug 23, 2017 at 10:02 AM, Serkan Çoban
>>> >>> <cobanserkan at gmail.com>
>>> >>> wrote:
>>> >>> > Same thing happens with 3.12.rc0. This time perf top shows hanging
>>> >>> > in
>>> >>> > libglusterfs.so and below is the glusterd logs, which are different
>>> >>> > from 3.10.
>>> >>> > With 3.10.5, after 60-70 minutes CPU usage becomes normal and we
>>> >>> > see
>>> >>> > brick processes come online and system starts to answer commands
>>> >>> > like
>>> >>> > "gluster peer status"..
>>> >>> >
>>> >>> > [2017-08-23 06:46:02.150472] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.152181] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.152287] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.153503] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.153647] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.153866] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.153948] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154018] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154108] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154162] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154250] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154322] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154425] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154494] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154575] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154649] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154705] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154774] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154852] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154903] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.154995] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.155052] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:02.155141] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:27.074052] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> > [2017-08-23 06:46:27.077034] E [client_t.c:324:gf_client_ref]
>>> >>> > (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1)
>>> >>> > [0x7f5ae2c091b1]
>>> >>> > -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c)
>>> >>> > [0x7f5ae2c0851c]
>>> >>> > -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9)
>>> >>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]
>>> >>> >
>>> >>> > On Tue, Aug 22, 2017 at 7:00 PM, Serkan Çoban
>>> >>> > <cobanserkan at gmail.com>
>>> >>> > wrote:
>>> >>> >> I reboot multiple times, also I destroyed the gluster
>>> >>> >> configuration
>>> >>> >> and recreate multiple times. The behavior is same.
>>> >>> >>
>>> >>> >> On Tue, Aug 22, 2017 at 6:47 PM, Atin Mukherjee
>>> >>> >> <amukherj at redhat.com>
>>> >>> >> wrote:
>>> >>> >>> My guess is there is a corruption in vol list or peer list which
>>> >>> >>> has
>>> >>> >>> lead
>>> >>> >>> glusterd to get into a infinite loop of traversing a peer/volume
>>> >>> >>> list
>>> >>> >>> and
>>> >>> >>> CPU to hog up. Again this is a guess and I've not got a chance to
>>> >>> >>> take a
>>> >>> >>> detail look at the logs and the strace output.
>>> >>> >>>
>>> >>> >>> I believe if you get to reboot the node again the problem will
>>> >>> >>> disappear.
>>> >>> >>>
>>> >>> >>> On Tue, 22 Aug 2017 at 20:07, Serkan Çoban
>>> >>> >>> <cobanserkan at gmail.com>
>>> >>> >>> wrote:
>>> >>> >>>>
>>> >>> >>>> As an addition perf top shows %80 libc-2.12.so __strcmp_sse42
>>> >>> >>>> during
>>> >>> >>>> glusterd %100 cpu usage
>>> >>> >>>> Hope this helps...
>>> >>> >>>>
>>> >>> >>>> On Tue, Aug 22, 2017 at 2:41 PM, Serkan Çoban
>>> >>> >>>> <cobanserkan at gmail.com>
>>> >>> >>>> wrote:
>>> >>> >>>> > Hi there,
>>> >>> >>>> >
>>> >>> >>>> > I have a strange problem.
>>> >>> >>>> > Gluster version in 3.10.5, I am testing new servers. Gluster
>>> >>> >>>> > configuration is 16+4 EC, I have three volumes, each have 1600
>>> >>> >>>> > bricks.
>>> >>> >>>> > I can successfully create the cluster and volumes without any
>>> >>> >>>> > problems. I write data to cluster from 100 clients for 12
>>> >>> >>>> > hours
>>> >>> >>>> > again
>>> >>> >>>> > no problem. But when I try to reboot a node, glusterd process
>>> >>> >>>> > hangs on
>>> >>> >>>> > %100 CPU usage and seems to do nothing, no brick processes
>>> >>> >>>> > come
>>> >>> >>>> > online. You can find strace of glusterd process for 1 minutes
>>> >>> >>>> > here:
>>> >>> >>>> >
>>> >>> >>>> >
>>> >>> >>>> > https://www.dropbox.com/s/c7bxfnbqxze1yus/gluster_strace.out?dl=0
>>> >>> >>>> >
>>> >>> >>>> > Here is the glusterd logs:
>>> >>> >>>> > https://www.dropbox.com/s/hkstb3mdeil9a5u/glusterd.log?dl=0
>>> >>> >>>> >
>>> >>> >>>> >
>>> >>> >>>> > By the way, reboot of one server completes without problem if
>>> >>> >>>> > I
>>> >>> >>>> > reboot
>>> >>> >>>> > the servers before creating any volumes.
>>> >>> >>>> _______________________________________________
>>> >>> >>>> Gluster-users mailing list
>>> >>> >>>> Gluster-users at gluster.org
>>> >>> >>>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>> >>> >>>
>>> >>> >>> --
>>> >>> >>> - Atin (atinm)
>>> >>
>>> >> --
>>> >> - Atin (atinm)
>>> >
>>> > --
>>> > - Atin (atinm)
>>> _______________________________________________
>>> Gluster-users mailing list
>>> Gluster-users at gluster.org
>>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>
>>
>>
>>
>> --
>> Milind
>>
>

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