Hi All,
I have a cluster of 4 nodes with 1 mds, 3 mons and 4 osds. Whenever I do
ceph health or ceph -s, it shows a health warning saying clock skew
detected in 2 of the 3 mons. When I run a mapreduce application on the
cluster, one of the monitors crashes (the one in which the skew is not
detected) soon after the application is started. Sometimes the application
completes, sometimes, it fails. I would like to know what this warning
means. Is it responsible for the failing of the application. If yes, how to
remove the warning?
Here is my ceph.conf:
[global]
auth client required = none
auth cluster required = none
auth service required = none
[osd]
osd journal data = 1000
filestore xattr use omap = true
[mon.a]
host = lnx147-73
mon addr = 10.72.147.73:6789
[mon.b]
host = lnx148-20
mon addr = 10.72.148.20:6789
[mon.c]
host = lnx-148-27
mon addr = 10.72.148.27:6789
[mds.a]
host = lnx147-73
[osd.0]
host = lnx147-73
[osd.1]
host = lnx148-20
[osd.2]
host = lnx-148-27
[osd.3]
host = ln148-28
I can mail the mon logs and the output of ceph -w for the duration of the
application.
Regards
Varun
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