Hi Gaurav,<div>Any progress about the problem?</div><div><br>On Thursday, August 24, 2017, Serkan Çoban <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Thank you Gaurav,<br>
Here is more findings:<br>
Problem does not happen using only 20 servers each has 68 bricks.<br>
(peer probe only 20 servers)<br>
If we use 40 servers with single volume, glusterd cpu %100 state<br>
continues for 5 minutes and it goes to normal state.<br>
with 80 servers we have no working state yet...<br>
<br>
On Thu, Aug 24, 2017 at 1:33 PM, Gaurav Yadav <<a href="javascript:;" onclick="_e(event, 'cvml', 'gyadav@redhat.com')">gyadav@redhat.com</a>> wrote:<br>
><br>
> I am working on it and will share my findings as soon as possible.<br>
><br>
><br>
> Thanks<br>
> Gaurav<br>
><br>
> On Thu, Aug 24, 2017 at 3:58 PM, Serkan Çoban <<a href="javascript:;" onclick="_e(event, 'cvml', 'cobanserkan@gmail.com')">cobanserkan@gmail.com</a>> wrote:<br>
>><br>
>> 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>
>><br>
>> On Thu, Aug 24, 2017 at 8:49 AM, Serkan Çoban <<a href="javascript:;" onclick="_e(event, 'cvml', 'cobanserkan@gmail.com')">cobanserkan@gmail.com</a>><br>
>> 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" 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<br>
>> > /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<br>
>> > /usr/lib64/libglusterfs.so.0<br>
>> > #2 0x000000303f8729f0 in syncenv_processor () from<br>
>> > /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<br>
>> > /usr/lib64/libglusterfs.so.0<br>
>> > #2 0x000000303f8729f0 in syncenv_processor () from<br>
>> > /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<br>
>> > /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<br>
>> > /usr/lib64/libgfrpc.so.0<br>
>> > #14 0x000000303f410c85 in rpc_clnt_notify () from<br>
>> > /usr/lib64/libgfrpc.so.0<br>
>> > #15 0x000000303f40bd68 in rpc_transport_notify () from<br>
>> > /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="javascript:;" onclick="_e(event, 'cvml', 'amukherj@redhat.com')">amukherj@redhat.com</a>><br>
>> > 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="javascript:;" onclick="_e(event, 'cvml', 'amukherj@redhat.com')">amukherj@redhat.com</a>><br>
>> >> 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="javascript:;" onclick="_e(event, 'cvml', 'cobanserkan@gmail.com')">cobanserkan@gmail.com</a>><br>
>> >>> 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<br>
>> >>>> <<a href="javascript:;" onclick="_e(event, 'cvml', 'cobanserkan@gmail.com')">cobanserkan@gmail.com</a>><br>
>> >>>> wrote:<br>
>> >>>> > Same thing happens with 3.12.rc0. This time perf top shows hanging<br>
>> >>>> > 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<br>
>> >>>> > see<br>
>> >>>> > brick processes come online and system starts to answer commands<br>
>> >>>> > 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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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]<br>
>> >>>> > -->/usr/lib64/libgfrpc.so.0(<wbr>rpcsvc_request_init+0x9c)<br>
>> >>>> > [0x7f5ae2c0851c]<br>
>> >>>> > -->/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<br>
>> >>>> > <<a href="javascript:;" onclick="_e(event, 'cvml', 'cobanserkan@gmail.com')">cobanserkan@gmail.com</a>><br>
>> >>>> > wrote:<br>
>> >>>> >> I reboot multiple times, also I destroyed the gluster<br>
>> >>>> >> configuration<br>
>> >>>> >> and recreate multiple times. The behavior is same.<br>
>> >>>> >><br>
>> >>>> >> On Tue, Aug 22, 2017 at 6:47 PM, Atin Mukherjee<br>
>> >>>> >> <<a href="javascript:;" onclick="_e(event, 'cvml', 'amukherj@redhat.com')">amukherj@redhat.com</a>><br>
>> >>>> >> wrote:<br>
>> >>>> >>> My guess is there is a corruption in vol list or peer list which<br>
>> >>>> >>> has<br>
>> >>>> >>> lead<br>
>> >>>> >>> glusterd to get into a infinite loop of traversing a peer/volume<br>
>> >>>> >>> 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<br>
>> >>>> >>> <<a href="javascript:;" onclick="_e(event, 'cvml', '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" target="_blank">libc-2.12.so</a> __strcmp_sse42<br>
>> >>>> >>>> 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="javascript:;" onclick="_e(event, 'cvml', '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<br>
>> >>>> >>>> > 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<br>
>> >>>> >>>> > come<br>
>> >>>> >>>> > online. You can find strace of glusterd process for 1 minutes<br>
>> >>>> >>>> > here:<br>
>> >>>> >>>> ><br>
>> >>>> >>>> ><br>
>> >>>> >>>> > <a href="https://www.dropbox.com/s/c7bxfnbqxze1yus/gluster_strace.out?dl=0" 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" 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<br>
>> >>>> >>>> > I<br>
>> >>>> >>>> > reboot<br>
>> >>>> >>>> > the servers before creating any volumes.<br>
>> >>>> >>>> ______________________________<wbr>_________________<br>
>> >>>> >>>> Gluster-users mailing list<br>
>> >>>> >>>> <a href="javascript:;" onclick="_e(event, 'cvml', 'Gluster-users@gluster.org')">Gluster-users@gluster.org</a><br>
>> >>>> >>>> <a href="http://lists.gluster.org/mailman/listinfo/gluster-users" 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="javascript:;" onclick="_e(event, 'cvml', 'Gluster-users@gluster.org')">Gluster-users@gluster.org</a><br>
>> <a href="http://lists.gluster.org/mailman/listinfo/gluster-users" target="_blank">http://lists.gluster.org/<wbr>mailman/listinfo/gluster-users</a><br>
><br>
><br>
</blockquote></div>