Hi,
I've just added some monitoring to the IO usage of mon (trying to
track down that growing mon issue), and I'm kind of surprised by the
amount of IO generated by the monitor process.
I get continuous 4 Mo/s / 75 iops with added big spikes at each
compaction every 3 min or so.
Is there a description somewhere of what the monitor does exactly ? I
mean the monmap / pgmap / osdmap / mdsmap / election epoch don't
change that often (pgmap is like 1 per second and that's the fastest
change by several orders of magnitude). So what exactly does the
monitor do with all that IO ???
Cheers,
Sylvain
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