<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 1, 2017 at 8:47 AM, Milind Changire <span dir="ltr"><<a href="mailto:mchangir@redhat.com" target="_blank">mchangir@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Serkan,</div><div>I have gone through other mails in the mail thread as well but responding to this one specifically.</div><div><br></div>Is this a source install or an RPM install ?<br></div>If this is an RPM install, could you please install the glusterfs-debuginfo RPM and retry to capture the gdb backtrace.</div><div><br></div><div>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.</div><div><br></div><div>Having the debuginfo package or a debug build helps to resolve the function names and/or line numbers.<br></div><div>--<br></div>Milind<br><div><br><br></div></div><div class="gmail_extra"><div><div class="h5"><br><div class="gmail_quote">On Thu, Aug 24, 2017 at 11:19 AM, 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 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/9f36<wbr>goq5xn3p1yt/glusterd_pstack.<wbr>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/xl<wbr>ator/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/xl<wbr>ator/mgmt/glusterd.so<br>
#6 0x00007f7a8981b0df in ?? () from<br>
/usr/lib64/glusterfs/3.10.5/xl<wbr>ator/mgmt/glusterd.so<br>
#7 0x00007f7a8981b47c in ?? () from<br>
/usr/lib64/glusterfs/3.10.5/xl<wbr>ator/mgmt/glusterd.so<br>
#8 0x00007f7a89831edf in ?? () from<br>
/usr/lib64/glusterfs/3.10.5/xl<wbr>ator/mgmt/glusterd.so<br>
#9 0x00007f7a897f28f7 in ?? () from<br>
/usr/lib64/glusterfs/3.10.5/xl<wbr>ator/mgmt/glusterd.so<br>
#10 0x00007f7a897f0bb9 in ?? () from<br>
/usr/lib64/glusterfs/3.10.5/xl<wbr>ator/mgmt/glusterd.so<br>
#11 0x00007f7a8984c89a in ?? () from<br>
/usr/lib64/glusterfs/3.10.5/xl<wbr>ator/mgmt/glusterd.so<br>
#12 0x00007f7a898323ee in ?? () from<br>
/usr/lib64/glusterfs/3.10.5/xl<wbr>ator/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/rp<wbr>c-transport/socket.so<br>
#17 0x00007f7a88a70ffe in ?? () from<br>
/usr/lib64/glusterfs/3.10.5/rp<wbr>c-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></blockquote></div></div></div></div></blockquote><div><br></div><div>Serkan,</div><div><br></div><div>If you could answer the following questions, that would help us to debug this issue further:</div><div><br></div><div>1. On 80 nodes cluster, did you reboot only one node or multiple ones?</div><div>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.<br></div><div>3. Are you absolutely sure even after few hours glusterd is stuck at the same point?</div><div><br></div><div>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.<br></div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="gmail_extra"><div><div class="h5"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="m_747782154540098836HOEnZb"><div class="m_747782154540098836h5"><br>
On Wed, Aug 23, 2017 at 8:46 PM, Atin Mukherjee <<a href="mailto:amukherj@redhat.com" target="_blank">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" target="_blank">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" target="_blank">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" target="_blank">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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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(r<wbr>pcsvc_request_create+0xf1)<br>
>>> > [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rp<wbr>csvc_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" target="_blank">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" target="_blank">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" target="_blank">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" target="_blank">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/c7bx<wbr>fnbqxze1yus/gluster_strace.<wbr>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/hkst<wbr>b3mdeil9a5u/glusterd.log?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" target="_blank">Gluster-users@gluster.org</a><br>
>>> >>>> <a href="http://lists.gluster.org/mailman/listinfo/gluster-users" rel="noreferrer" target="_blank">http://lists.gluster.org/mailm<wbr>an/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" target="_blank">Gluster-users@gluster.org</a><br>
<a href="http://lists.gluster.org/mailman/listinfo/gluster-users" rel="noreferrer" target="_blank">http://lists.gluster.org/mailm<wbr>an/listinfo/gluster-users</a></div></div></blockquote></div><br><br clear="all"><br>-- <br></div></div><span class="HOEnZb"><font color="#888888"><div class="m_747782154540098836gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr">Milind<br><br></div></div></div></div>
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