Lots of bug reports being logged about this one, here is one: https://bugzilla.redhat.com/show_bug.cgi?id=1677319

On Tue, Feb 26, 2019 at 9:56 AM Endre Karlson <endre.karlson@gmail.com> wrote:
Hi we are seeing a high number of errors / failures within the logs and problems with our ovirt 4.3 cluster. IS there any assumption on a possible fix?

The message "E [MSGID: 101191] [event-epoll.c:671:event_dispatch_epoll_worker] 0-epoll: Failed to dispatch handler" repeated 13 times between [2019-02-26 13:53:40.653905] and [2019-02-26 13:54:04.684140]
[2019-02-26 13:54:08.684591] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-vmstore-client-2: changing port to 49153 (from 0)
[2019-02-26 13:54:08.689021] E [MSGID: 101191] [event-epoll.c:671:event_dispatch_epoll_worker] 0-epoll: Failed to dispatch handler

==> /var/log/glusterfs/glustershd.log <==
[2019-02-26 13:54:08.783380] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-vmstore-client-2: changing port to 49153 (from 0)
[2019-02-26 13:54:09.427338] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-engine-client-2: changing port to 49152 (from 0)
[2019-02-26 13:54:10.785533] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-engine-client-2: changing port to 49152 (from 0)
[2019-02-26 13:54:12.432411] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-vmstore-client-2: changing port to 49153 (from 0)

==> /var/log/glusterfs/rhev-data-center-mnt-glusterSD-ovirt4-stor.creator.local:_engine.log <==
[2019-02-26 13:54:12.579095] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-engine-client-2: changing port to 49152 (from 0)

==> /var/log/glusterfs/rhev-data-center-mnt-glusterSD-ovirt4-stor.creator.local:vmstore.log <==
[2019-02-26 13:54:12.689449] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-vmstore-client-2: changing port to 49153 (from 0)

==> /var/log/glusterfs/glustershd.log <==
[2019-02-26 13:54:12.790471] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-vmstore-client-2: changing port to 49153 (from 0)
[2019-02-26 13:54:13.437351] I [rpc-clnt.c:2042:rpc_clnt_reconfig] 0-engine-client-2: changing port to 49152 (from 0)

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