Ceph Cluster report Monitor clock skew detected error troubleshooting, resolving

Ceph Cluster report Monitor clock skew detected error troubleshooting, resolving

The alarm information is as follows:
[Email protected] ceph]# ceph-w
Cluster ddc1b10b-6d1a-4ef9-8a01-d561512f3c1d
Health Health_warn
Clock skew detected on mon.ceph-100-81, mon.ceph-100-82
Monitor Clock Skew detected
Monmap E1:3 Mons at {ceph-100-80=172.16.100.80:6789/0,ceph-100-81=172.16.100.81:6789/0,ceph-100-82= 172.16.100.82:6789/0}
Election epoch, quorum 0,1,2 ceph-100-80,ceph-100-81,ceph-100-82
Mdsmap e21:1/1/1 up {0=ceph-100-80=up:active}, 2 Up:standby
Osdmap E116:6 osds:6 up, 6 in
Pgmap v205:576 pgs, 3 pools, 1962 bytes data, objects
234 MB used, 269 gb/269 GB Avail
576 Active+clean

1: Add configuration parameters:
Vim/etc/ceph/ceph.conf

[MON.CEPH-100-80]
Host = ceph-100-80
Mon_data =/var/lib/ceph/mon/ceph-ceph-100-80/
MON_ADDR = 172.16.100.80:6789

# Add content as follows:
Mon clock Drift allowed = 2
Mon clock drift warn Backoff = 30

2: Synchronizing the configuration file
Ceph-deploy--overwrite-conf Admin ceph-100-{80..82}

3: Restart Mon service

/etc/init.d/ceph Restart Mon

4: Verify:
[Email protected] ceph]# ceph-w
Cluster ddc1b10b-6d1a-4ef9-8a01-d561512f3c1d
Health HEALTH_OK
Monmap E1:3 Mons at {ceph-100-80=172.16.100.80:6789/0,ceph-100-81=172.16.100.81:6789/0,ceph-100-82= 172.16.100.82:6789/0}
Election epoch, quorum 0,1,2 ceph-100-80,ceph-100-81,ceph-100-82
Mdsmap e21:1/1/1 up {0=ceph-100-80=up:active}, 2 Up:standby
Osdmap E116:6 osds:6 up, 6 in
Pgmap v205:576 pgs, 3 pools, 1962 bytes data, objects
234 MB used, 269 gb/269 GB Avail
576 Active+clean


Check again, the alarm content disappears.

Summary of issues:

This problem is mainly Mon node server, the time deviation is relatively large, this time encountered a problem for the test environment, by modifying ceph to time deviation threshold, evade alarm information, online business environment, attention to troubleshoot the server time synchronization problem.

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Ceph Cluster report Monitor clock skew detected error troubleshooting, resolving