Hi Miha, interesting observation, I don't think we've noticed this before. Would you mind submitting a bug report about this on our tracker, including these logs? https://tracker.ceph.com/projects/mgr/issues/new Thanks in advance! Lenz On 9/26/19 10:01 AM, Miha Verlic wrote:

On 24. 09. 19 14:53, Lenz Grimmer wrote:

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On 9/24/19 1:37 PM, Miha Verlic wrote:

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I've got slightly different problem. After a few days of running fine, dashboard stops working because it is apparently seeking for wrong certificate file in /tmp. If I restart ceph-mgr it starts to work again.

Does the restart trigger the creation of a similar-looking file in /tmp? I wonder if there's some kind of cron job that cleans up the /tmp directory every now and then...

There is systemd-tmpfiles-clean.timer, but it ignores PrivateTmp folders.

But as said, crt and key files do exist in tmp and according to timestamps they were created when ceph-mgr daemon was started; it seems to me like ceph-mgr simply starts looking for wrong filenames after a while.

Going through ceph-mgr logs I'd say the problem is internal webserver is restarted, but ceph-mgr is not notified about new crt/key files:

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: [19/Sep/2019:12:54:16] ENGINE Bus STOPPING

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: [19/Sep/2019:12:54:16] ENGINE HTTP Server cherrypy._cpwsgi_server.CPWSGIServer(('::', 8443)) shut down

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: [19/Sep/2019:12:54:16] ENGINE Stopped thread '_TimeoutMonitor'.

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: [19/Sep/2019:12:54:16] ENGINE Bus STOPPED

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: [19/Sep/2019:12:54:16] ENGINE Bus STARTING

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: [19/Sep/2019:12:54:16] ENGINE Started monitor thread '_TimeoutMonitor'.

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: 2019-09-19 12:54:16.618 7f3a796e4700 -1 client.0 error registering admin socket command: (17) File exists

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: 2019-09-19 12:54:16.618 7f3a796e4700 -1 client.0 error registering admin socket command: (17) File exists

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: 2019-09-19 12:54:16.618 7f3a796e4700 -1 client.0 error registering admin socket command: (17) File exists

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: 2019-09-19 12:54:16.618 7f3a796e4700 -1 client.0 error registering admin socket command: (17) File exists

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: 2019-09-19 12:54:16.618 7f3a796e4700 -1 client.0 error registering admin socket command: (17) File exists

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: [19/Sep/2019:12:54:16] ENGINE Serving on :::8443

Sep 19 12:54:16 cephtest01 ceph-mgr[2247]: [19/Sep/2019:12:54:16] ENGINE Bus STARTED

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