<div dir="ltr"><div><div><br>I am working on it and will share my findings as soon as possible.<br></div><div><br><br></div>Thanks<br></div>Gaurav<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Aug 24, 2017 at 3:58 PM, Serkan Çoban <span dir="ltr"><<a href="mailto:cobanserkan@gmail.com" target="_blank">cobanserkan@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Restarting glusterd causes the same thing. I tried with 3.12.rc0,<br>
3.10.5. 3.8.15, 3.7.20 all same behavior.<br>
My OS is centos 6.9, I tried with centos 6.8 problem remains...<br>
Only way to a healthy state is destroy gluster config/rpms, reinstall<br>
and recreate volumes.<br>
<div class="HOEnZb"><div class="h5"><br>
On Thu, Aug 24, 2017 at 8:49 AM, Serkan Çoban <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>> wrote:<br>
> Here you can find 10 stack trace samples from glusterd. I wait 10<br>
> seconds between each trace.<br>
> <a href="https://www.dropbox.com/s/9f36goq5xn3p1yt/glusterd_pstack.zip?dl=0" rel="noreferrer" target="_blank">https://www.dropbox.com/s/<wbr>9f36goq5xn3p1yt/glusterd_<wbr>pstack.zip?dl=0</a><br>
><br>
> Content of the first stack trace is here:<br>
><br>
> Thread 8 (Thread 0x7f7a8cd4e700 (LWP 43069)):<br>
> #0 0x0000003aa5c0f00d in nanosleep () from /lib64/libpthread.so.0<br>
> #1 0x000000303f837d57 in ?? () from /usr/lib64/libglusterfs.so.0<br>
> #2 0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0<br>
> #3 0x0000003aa58e8bbd in clone () from /lib64/libc.so.6<br>
> Thread 7 (Thread 0x7f7a8c34d700 (LWP 43070)):<br>
> #0 0x0000003aa5c0f585 in sigwait () from /lib64/libpthread.so.0<br>
> #1 0x000000000040643b in glusterfs_sigwaiter ()<br>
> #2 0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0<br>
> #3 0x0000003aa58e8bbd in clone () from /lib64/libc.so.6<br>
> Thread 6 (Thread 0x7f7a8b94c700 (LWP 43071)):<br>
> #0 0x0000003aa58acc4d in nanosleep () from /lib64/libc.so.6<br>
> #1 0x0000003aa58acac0 in sleep () from /lib64/libc.so.6<br>
> #2 0x000000303f8528fb in pool_sweeper () from /usr/lib64/libglusterfs.so.0<br>
> #3 0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0<br>
> #4 0x0000003aa58e8bbd in clone () from /lib64/libc.so.6<br>
> Thread 5 (Thread 0x7f7a8af4b700 (LWP 43072)):<br>
> #0 0x0000003aa5c0ba5e in pthread_cond_timedwait@@GLIBC_<wbr>2.3.2 () from<br>
> /lib64/libpthread.so.0<br>
> #1 0x000000303f864afc in syncenv_task () from /usr/lib64/libglusterfs.so.0<br>
> #2 0x000000303f8729f0 in syncenv_processor () from /usr/lib64/libglusterfs.so.0<br>
> #3 0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0<br>
> #4 0x0000003aa58e8bbd in clone () from /lib64/libc.so.6<br>
> Thread 4 (Thread 0x7f7a8a54a700 (LWP 43073)):<br>
> #0 0x0000003aa5c0ba5e in pthread_cond_timedwait@@GLIBC_<wbr>2.3.2 () from<br>
> /lib64/libpthread.so.0<br>
> #1 0x000000303f864afc in syncenv_task () from /usr/lib64/libglusterfs.so.0<br>
> #2 0x000000303f8729f0 in syncenv_processor () from /usr/lib64/libglusterfs.so.0<br>
> #3 0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0<br>
> #4 0x0000003aa58e8bbd in clone () from /lib64/libc.so.6<br>
> Thread 3 (Thread 0x7f7a886ac700 (LWP 43075)):<br>
> #0 0x0000003aa5c0b68c in pthread_cond_wait@@GLIBC_2.3.2 () from<br>
> /lib64/libpthread.so.0<br>
> #1 0x00007f7a898a099b in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #2 0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0<br>
> #3 0x0000003aa58e8bbd in clone () from /lib64/libc.so.6<br>
> Thread 2 (Thread 0x7f7a87cab700 (LWP 43076)):<br>
> #0 0x0000003aa5928692 in __strcmp_sse42 () from /lib64/libc.so.6<br>
> #1 0x000000303f82244a in ?? () from /usr/lib64/libglusterfs.so.0<br>
> #2 0x000000303f82433d in ?? () from /usr/lib64/libglusterfs.so.0<br>
> #3 0x000000303f8245f5 in dict_set () from /usr/lib64/libglusterfs.so.0<br>
> #4 0x000000303f82524c in dict_set_str () from /usr/lib64/libglusterfs.so.0<br>
> #5 0x00007f7a898da7fd in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #6 0x00007f7a8981b0df in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #7 0x00007f7a8981b47c in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #8 0x00007f7a89831edf in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #9 0x00007f7a897f28f7 in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #10 0x00007f7a897f0bb9 in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #11 0x00007f7a8984c89a in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #12 0x00007f7a898323ee in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>xlator/mgmt/glusterd.so<br>
> #13 0x000000303f40fad5 in rpc_clnt_handle_reply () from /usr/lib64/libgfrpc.so.0<br>
> #14 0x000000303f410c85 in rpc_clnt_notify () from /usr/lib64/libgfrpc.so.0<br>
> #15 0x000000303f40bd68 in rpc_transport_notify () from /usr/lib64/libgfrpc.so.0<br>
> #16 0x00007f7a88a6fccd in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>rpc-transport/socket.so<br>
> #17 0x00007f7a88a70ffe in ?? () from<br>
> /usr/lib64/glusterfs/3.10.5/<wbr>rpc-transport/socket.so<br>
> #18 0x000000303f887806 in ?? () from /usr/lib64/libglusterfs.so.0<br>
> #19 0x0000003aa5c07aa1 in start_thread () from /lib64/libpthread.so.0<br>
> #20 0x0000003aa58e8bbd in clone () from /lib64/libc.so.6<br>
> Thread 1 (Thread 0x7f7a93844740 (LWP 43068)):<br>
> #0 0x0000003aa5c082fd in pthread_join () from /lib64/libpthread.so.0<br>
> #1 0x000000303f8872d5 in ?? () from /usr/lib64/libglusterfs.so.0<br>
> #2 0x0000000000409020 in main ()<br>
><br>
> On Wed, Aug 23, 2017 at 8:46 PM, Atin Mukherjee <<a href="mailto:amukherj@redhat.com">amukherj@redhat.com</a>> wrote:<br>
>> Could you be able to provide the pstack dump of the glusterd process?<br>
>><br>
>> On Wed, 23 Aug 2017 at 20:22, Atin Mukherjee <<a href="mailto:amukherj@redhat.com">amukherj@redhat.com</a>> wrote:<br>
>>><br>
>>> Not yet. Gaurav will be taking a look at it tomorrow.<br>
>>><br>
>>> On Wed, 23 Aug 2017 at 20:14, Serkan Çoban <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>> wrote:<br>
>>>><br>
>>>> Hi Atin,<br>
>>>><br>
>>>> Do you have time to check the logs?<br>
>>>><br>
>>>> On Wed, Aug 23, 2017 at 10:02 AM, Serkan Çoban <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>><br>
>>>> wrote:<br>
>>>> > Same thing happens with 3.12.rc0. This time perf top shows hanging in<br>
>>>> > libglusterfs.so and below is the glusterd logs, which are different<br>
>>>> > from 3.10.<br>
>>>> > With 3.10.5, after 60-70 minutes CPU usage becomes normal and we see<br>
>>>> > brick processes come online and system starts to answer commands like<br>
>>>> > "gluster peer status"..<br>
>>>> ><br>
>>>> > [2017-08-23 06:46:02.150472] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.152181] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.152287] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.153503] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.153647] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.153866] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.153948] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154018] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154108] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154162] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154250] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154322] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154425] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154494] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154575] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154649] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154705] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154774] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154852] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154903] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.154995] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.155052] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:02.155141] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:27.074052] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> > [2017-08-23 06:46:27.077034] E [client_t.c:324:gf_client_ref]<br>
>>>> > (-->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_create+0xf1)<br>
>>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>>>> > [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.<wbr>0(gf_client_ref+0x1a9)<br>
>>>> > [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument]<br>
>>>> ><br>
>>>> > On Tue, Aug 22, 2017 at 7:00 PM, Serkan Çoban <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>><br>
>>>> > wrote:<br>
>>>> >> I reboot multiple times, also I destroyed the gluster configuration<br>
>>>> >> and recreate multiple times. The behavior is same.<br>
>>>> >><br>
>>>> >> On Tue, Aug 22, 2017 at 6:47 PM, Atin Mukherjee <<a href="mailto:amukherj@redhat.com">amukherj@redhat.com</a>><br>
>>>> >> wrote:<br>
>>>> >>> My guess is there is a corruption in vol list or peer list which has<br>
>>>> >>> lead<br>
>>>> >>> glusterd to get into a infinite loop of traversing a peer/volume list<br>
>>>> >>> and<br>
>>>> >>> CPU to hog up. Again this is a guess and I've not got a chance to<br>
>>>> >>> take a<br>
>>>> >>> detail look at the logs and the strace output.<br>
>>>> >>><br>
>>>> >>> I believe if you get to reboot the node again the problem will<br>
>>>> >>> disappear.<br>
>>>> >>><br>
>>>> >>> On Tue, 22 Aug 2017 at 20:07, Serkan Çoban <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>><br>
>>>> >>> wrote:<br>
>>>> >>>><br>
>>>> >>>> As an addition perf top shows %80 <a href="http://libc-2.12.so" rel="noreferrer" target="_blank">libc-2.12.so</a> __strcmp_sse42 during<br>
>>>> >>>> glusterd %100 cpu usage<br>
>>>> >>>> Hope this helps...<br>
>>>> >>>><br>
>>>> >>>> On Tue, Aug 22, 2017 at 2:41 PM, Serkan Çoban<br>
>>>> >>>> <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>><br>
>>>> >>>> wrote:<br>
>>>> >>>> > Hi there,<br>
>>>> >>>> ><br>
>>>> >>>> > I have a strange problem.<br>
>>>> >>>> > Gluster version in 3.10.5, I am testing new servers. Gluster<br>
>>>> >>>> > configuration is 16+4 EC, I have three volumes, each have 1600<br>
>>>> >>>> > bricks.<br>
>>>> >>>> > I can successfully create the cluster and volumes without any<br>
>>>> >>>> > problems. I write data to cluster from 100 clients for 12 hours<br>
>>>> >>>> > again<br>
>>>> >>>> > no problem. But when I try to reboot a node, glusterd process<br>
>>>> >>>> > hangs on<br>
>>>> >>>> > %100 CPU usage and seems to do nothing, no brick processes come<br>
>>>> >>>> > online. You can find strace of glusterd process for 1 minutes<br>
>>>> >>>> > here:<br>
>>>> >>>> ><br>
>>>> >>>> > <a href="https://www.dropbox.com/s/c7bxfnbqxze1yus/gluster_strace.out?dl=0" rel="noreferrer" target="_blank">https://www.dropbox.com/s/<wbr>c7bxfnbqxze1yus/gluster_<wbr>strace.out?dl=0</a><br>
>>>> >>>> ><br>
>>>> >>>> > Here is the glusterd logs:<br>
>>>> >>>> > <a href="https://www.dropbox.com/s/hkstb3mdeil9a5u/glusterd.log?dl=0" rel="noreferrer" target="_blank">https://www.dropbox.com/s/<wbr>hkstb3mdeil9a5u/glusterd.log?<wbr>dl=0</a><br>
>>>> >>>> ><br>
>>>> >>>> ><br>
>>>> >>>> > By the way, reboot of one server completes without problem if I<br>
>>>> >>>> > reboot<br>
>>>> >>>> > the servers before creating any volumes.<br>
>>>> >>>> ______________________________<wbr>_________________<br>
>>>> >>>> Gluster-users mailing list<br>
>>>> >>>> <a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br>
>>>> >>>> <a href="http://lists.gluster.org/mailman/listinfo/gluster-users" rel="noreferrer" target="_blank">http://lists.gluster.org/<wbr>mailman/listinfo/gluster-users</a><br>
>>>> >>><br>
>>>> >>> --<br>
>>>> >>> - Atin (atinm)<br>
>>><br>
>>> --<br>
>>> - Atin (atinm)<br>
>><br>
>> --<br>
>> - Atin (atinm)<br>
______________________________<wbr>_________________<br>
Gluster-users mailing list<br>
<a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br>
<a href="http://lists.gluster.org/mailman/listinfo/gluster-users" rel="noreferrer" target="_blank">http://lists.gluster.org/<wbr>mailman/listinfo/gluster-users</a></div></div></blockquote></div><br></div>