I have the %100 CPU usage issue when I restart a glusterd instance and I do not have null client errors in log. The issue was related to number of bricks/servers so I decreased the brick count in volume. It resolved the problem. On Thu, Sep 14, 2017 at 9:02 AM, Sam McLeod <mailinglists@xxxxxxxxxxx> wrote: > Hi Serkan, > > I was wondering if you resolved your issue with the high CPU usage and hang after starting gluster? > > I'm setting up a 3 server (replica 3, arbiter 1), 300 volume, Gluster 3.12 cluster on CentOS 7 and am having what looks to be exactly the same issue as you. > > With no volumes created CPU usage / load is normal, but after creating all the volumes even with no data CPU and RAM usage keeps creeping up and the logs are filling up with: > > [2017-09-14 05:47:45.447772] E [client_t.c:324:gf_client_ref] (-->/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf8) [0x7fe3f2a1b7e8] -->/lib64/libgfrpc.so.0(rpcsvc_request_init+0x7f) [0x7fe3f2a1893f] -->/lib64/libglusterfs.so.0(gf_client_ref+0x179) [0x7fe3f2cb2e59] ) 0-client_t: null client [Invalid argument] > [2017-09-14 05:47:45.486593] E [client_t.c:324:gf_client_ref] (-->/lib64/libgfrpc.so.0(rpcsvc_request_create+0xf8) [0x7fe3f2a1b7e8] -->/lib64/libgfrpc.so.0(rpcsvc_request_init+0x7f) [0x7fe3f2a1893f] -- > > etc... > > It's not an overly helpful error message as although it says a null client gave an invalid argument, it doesn't state which client and what the argument was. > > I've tried strace and valgrind on glusterd as well as starting glusterd with --debug to no avail. > > -- > Sam McLeod > @s_mcleod > https://smcleod.net > _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://lists.gluster.org/mailman/listinfo/gluster-users
