Same thing happens with 3.12.rc0. This time perf top shows hanging in libglusterfs.so and below is the glusterd logs, which are different from 3.10. With 3.10.5, after 60-70 minutes CPU usage becomes normal and we see brick processes come online and system starts to answer commands like "gluster peer status".. [2017-08-23 06:46:02.150472] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.152181] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.152287] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.153503] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.153647] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.153866] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.153948] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154018] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154108] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154162] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154250] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154322] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154425] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154494] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154575] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154649] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154705] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154774] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154852] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154903] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.154995] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.155052] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:02.155141] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:27.074052] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] [2017-08-23 06:46:27.077034] E [client_t.c:324:gf_client_ref] (-->/usr/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf1) [0x7f5ae2c091b1] -->/usr/lib64/libgfrpc.so.0(rpcsvc_request_init+0x9c) [0x7f5ae2c0851c] -->/usr/lib64/libglusterfs.so.0(gf_client_ref+0x1a9) [0x7f5ae2ea3949] ) 0-client_t: null client [Invalid argument] On Tue, Aug 22, 2017 at 7:00 PM, Serkan Çoban <cobanserkan@xxxxxxxxx> wrote: > I reboot multiple times, also I destroyed the gluster configuration > and recreate multiple times. The behavior is same. > > On Tue, Aug 22, 2017 at 6:47 PM, Atin Mukherjee <amukherj@xxxxxxxxxx> wrote: >> My guess is there is a corruption in vol list or peer list which has lead >> glusterd to get into a infinite loop of traversing a peer/volume list and >> CPU to hog up. Again this is a guess and I've not got a chance to take a >> detail look at the logs and the strace output. >> >> I believe if you get to reboot the node again the problem will disappear. >> >> On Tue, 22 Aug 2017 at 20:07, Serkan Çoban <cobanserkan@xxxxxxxxx> wrote: >>> >>> As an addition perf top shows %80 libc-2.12.so __strcmp_sse42 during >>> glusterd %100 cpu usage >>> Hope this helps... >>> >>> On Tue, Aug 22, 2017 at 2:41 PM, Serkan Çoban <cobanserkan@xxxxxxxxx> >>> wrote: >>> > Hi there, >>> > >>> > I have a strange problem. >>> > Gluster version in 3.10.5, I am testing new servers. Gluster >>> > configuration is 16+4 EC, I have three volumes, each have 1600 bricks. >>> > I can successfully create the cluster and volumes without any >>> > problems. I write data to cluster from 100 clients for 12 hours again >>> > no problem. But when I try to reboot a node, glusterd process hangs on >>> > %100 CPU usage and seems to do nothing, no brick processes come >>> > online. You can find strace of glusterd process for 1 minutes here: >>> > >>> > https://www.dropbox.com/s/c7bxfnbqxze1yus/gluster_strace.out?dl=0 >>> > >>> > Here is the glusterd logs: >>> > https://www.dropbox.com/s/hkstb3mdeil9a5u/glusterd.log?dl=0 >>> > >>> > >>> > By the way, reboot of one server completes without problem if I reboot >>> > the servers before creating any volumes. >>> _______________________________________________ >>> Gluster-users mailing list >>> Gluster-users@xxxxxxxxxxx >>> http://lists.gluster.org/mailman/listinfo/gluster-users >> >> -- >> - Atin (atinm) _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-users