[Gluster-users] Glusterd proccess hangs on reboot

Serkan Çoban cobanserkan at gmail.com
Thu Sep 14 11:54:54 UTC 2017

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 at smcleod.net> 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

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