Re: MDS behind on trimming

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Quoting Dan van der Ster (dan@xxxxxxxxxxxxxx):
> Hi,
> 
> We've used double the defaults for around 6 months now and haven't had any
> behind on trimming errors in that time.
> 
>    mds log max segments = 60
>    mds log max expiring = 40
> 
> Should be simple to try.
Yup, and works like a charm:

ceph tell mds.* injectargs '--mds_log_max_segments=60'
ceph tell mds.* injectargs '--mds_log_max_expiring=40'

Although you see this logged: (not observed, change may require restart),
these settings do get applied almost instantly ... and the trim lag was
gone within 30 seconds after that.

Thanks,

Stefan

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