Dear Ceph users,

I am trying to enable influx plugin for ceph following http://docs.ceph.com/docs/master/mgr/influx/ but no data comes to influxdb DB. As soon as 'ceph mgr module enable influx' command is executed on one of ceph mgr node (running on CentOS 7.4.1708) there are the following messages in /var/log/ceph/ceph-mgr.<ceph-mgr-host>.log:


2018-02-19 17:11:05.947122 7f33c9b43600 0 ceph version 12.2.2 (cf0baeeeeba3b47f9427c6c97e2144b094b7e5ba) luminous (stable), process (unknown), pid 96425
2018-02-19 17:11:05.947737 7f33c9b43600  0 pidfile_write: ignore empty 
--pid-file
2018-02-19 17:11:05.986676 7f33c9b43600  1 mgr send_beacon standby
2018-02-19 17:11:06.003029 7f33c0e2a700  1 mgr init Loading python module 
'balancer'
2018-02-19 17:11:06.031293 7f33c0e2a700  1 mgr init Loading python module 
'dashboard'
2018-02-19 17:11:06.119328 7f33c0e2a700  1 mgr init Loading python module 
'influx'
2018-02-19 17:11:06.220394 7f33c0e2a700  1 mgr init Loading python module 
'restful'
2018-02-19 17:11:06.398380 7f33c0e2a700  1 mgr init Loading python module 
'status'
2018-02-19 17:11:06.919109 7f33c0e2a700  1 mgr handle_mgr_map Activating!
2018-02-19 17:11:06.919454 7f33c0e2a700  1 mgr handle_mgr_map I am now 
activating
2018-02-19 17:11:06.952174 7f33a58ed700  1 mgr load Constructed class from 
module: balancer
2018-02-19 17:11:06.953259 7f33a58ed700  1 mgr load Constructed class from 
module: dashboard
2018-02-19 17:11:06.953959 7f33a58ed700  1 mgr load Constructed class from 
module: influx
2018-02-19 17:11:06.954193 7f33a58ed700  1 mgr load Constructed class from 
module: restful
2018-02-19 17:11:06.955549 7f33a58ed700  1 mgr load Constructed class from 
module: status
2018-02-19 17:11:06.955613 7f33a58ed700  1 mgr send_beacon active
2018-02-19 17:11:06.960224 7f33a58ed700  1 mgr[restful] Unknown request ''
2018-02-19 17:11:06.961912 7f33a28e7700  1 mgr[restful] server not running: no 
certificate configured
2018-02-19 17:11:06.969027 7f33a30e8700  0 Cannot get stat of OSD 0
.... on so on for all 64 OSD I have in a cluster.....

'ceph osd tree' shows all OSD are up. 'ceph health' gives HEALTH_OK.

python-influxdb-5.0.0-2.el7.noarch is installed on ceph mgr node. That rpm was 
rebuilt from fc28 srpm.

'ceph config-key dump|grep influx' shows reasonable info:
    "mgr/influx/database": "ceph_stats",
    "mgr/influx/hostname": "<influxdb host>",
    "mgr/influx/password": "<censored>",
    "mgr/influx/ssl": "false",
    "mgr/influx/username": "cephstat",
    "mgr/influx/verify_ssl": "false"


influxdb-1.4.2-1.x86_64 is installed on influxdb host with CentOS 7.4.1708.

I would appreciate any help on that issue.



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