<div dir="ltr"><div><div><div><div><div><br></div>I believe logs you have shared logs which consist of create volume followed by starting the volume.<br></div>However, you have mentioned that when a node from 80 server cluster gets rebooted, glusterd process hangs.<br><br></div>Could you please provide the logs which led glusterd to hang for all the cases along with gusterd process utilization.<br><br><br></div>Thanks <br></div>Gaurav <br><div><div><div><div><div><pre id="gmail-code" class="gmail-brush: gmail-text; gmail-plain-text"><br><br></pre><pre id="gmail-code" class="gmail-brush: gmail-text; gmail-plain-text"><br></pre><pre id="gmail-code" class="gmail-brush: gmail-text; gmail-plain-text"><br></pre></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 29, 2017 at 2:44 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">Here is the requested logs:<br>
<a href="https://www.dropbox.com/s/vt187h0gtu5doip/gluster_logs_20_40_80_servers.zip?dl=0" rel="noreferrer" target="_blank">https://www.dropbox.com/s/<wbr>vt187h0gtu5doip/gluster_logs_<wbr>20_40_80_servers.zip?dl=0</a><br>
<div class="HOEnZb"><div class="h5"><br>
<br>
On Tue, Aug 29, 2017 at 7:48 AM, Gaurav Yadav <<a href="mailto:gyadav@redhat.com">gyadav@redhat.com</a>> wrote:<br>
> Till now I haven't found anything significant.<br>
><br>
> Can you send me gluster logs along with command-history-logs for these<br>
> scenarios:<br>
> Scenario1 : 20 servers<br>
> Scenario2 : 40 servers<br>
> Scenario3: 80 Servers<br>
><br>
><br>
> Thanks<br>
> Gaurav<br>
><br>
><br>
><br>
> On Mon, Aug 28, 2017 at 11:22 AM, Serkan Çoban <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>><br>
> wrote:<br>
>><br>
>> Hi Gaurav,<br>
>> Any progress about the problem?<br>
>><br>
>> On Thursday, August 24, 2017, Serkan Çoban <<a href="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>> wrote:<br>
>>><br>
>>> 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="mailto: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="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>><br>
>>> > 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="mailto: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" 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<br>
>>> >> > /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<br>
>>> >> > /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<br>
>>> >> > /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 ()<br>
>>> >> > 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<br>
>>> >> > /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 ()<br>
>>> >> > 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<br>
>>> >> > /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<br>
>>> >> > /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<br>
>>> >> > /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<br>
>>> >> > /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<br>
>>> >> > /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<br>
>>> >> > <<a href="mailto:amukherj@redhat.com">amukherj@redhat.com</a>><br>
>>> >> > wrote:<br>
>>> >> >> Could you be able to provide the pstack dump of the glusterd<br>
>>> >> >> process?<br>
>>> >> >><br>
>>> >> >> On Wed, 23 Aug 2017 at 20:22, Atin Mukherjee <<a href="mailto: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="mailto: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="mailto:cobanserkan@gmail.com">cobanserkan@gmail.com</a>><br>
>>> >> >>>> wrote:<br>
>>> >> >>>> > Same thing happens with 3.12.rc0. This time perf top shows<br>
>>> >> >>>> > hanging<br>
>>> >> >>>> > in<br>
>>> >> >>>> > libglusterfs.so and below is the glusterd logs, which are<br>
>>> >> >>>> > different<br>
>>> >> >>>> > from 3.10.<br>
>>> >> >>>> > With 3.10.5, after 60-70 minutes CPU usage becomes normal and<br>
>>> >> >>>> > we<br>
>>> >> >>>> > see<br>
>>> >> >>>> > brick processes come online and system starts to answer<br>
>>> >> >>>> > 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="mailto: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="mailto:amukherj@redhat.com">amukherj@redhat.com</a>><br>
>>> >> >>>> >> wrote:<br>
>>> >> >>>> >>> My guess is there is a corruption in vol list or peer list<br>
>>> >> >>>> >>> which<br>
>>> >> >>>> >>> has<br>
>>> >> >>>> >>> lead<br>
>>> >> >>>> >>> glusterd to get into a infinite loop of traversing a<br>
>>> >> >>>> >>> peer/volume<br>
>>> >> >>>> >>> list<br>
>>> >> >>>> >>> and<br>
>>> >> >>>> >>> CPU to hog up. Again this is a guess and I've not got a<br>
>>> >> >>>> >>> 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<br>
>>> >> >>>> >>> will<br>
>>> >> >>>> >>> disappear.<br>
>>> >> >>>> >>><br>
>>> >> >>>> >>> On Tue, 22 Aug 2017 at 20:07, Serkan Çoban<br>
>>> >> >>>> >>> <<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><br>
>>> >> >>>> >>>> __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="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.<br>
>>> >> >>>> >>>> > Gluster<br>
>>> >> >>>> >>>> > configuration is 16+4 EC, I have three volumes, each have<br>
>>> >> >>>> >>>> > 1600<br>
>>> >> >>>> >>>> > bricks.<br>
>>> >> >>>> >>>> > I can successfully create the cluster and volumes without<br>
>>> >> >>>> >>>> > 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<br>
>>> >> >>>> >>>> > 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<br>
>>> >> >>>> >>>> > minutes<br>
>>> >> >>>> >>>> > here:<br>
>>> >> >>>> >>>> ><br>
>>> >> >>>> >>>> ><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>
>>> >> >>>> >>>> ><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<br>
>>> >> >>>> >>>> > if<br>
>>> >> >>>> >>>> > 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><br>
>>> ><br>
>>> ><br>
><br>
><br>
</div></div></blockquote></div><br></div>