Re: Bluestore OSD_DATA, WAL & DB

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On 26 September 2017 at 01:10, David Turner <drakonstein@xxxxxxxxx> wrote:
> If they are on separate
> devices, then you need to make it as big as you need to to ensure that it
> won't spill over (or if it does that you're ok with the degraded performance
> while the db partition is full).  I haven't come across an equation to judge
> what size should be used for either partition yet.

Is it the case that only the WAL will spill if there is a backlog
clearing entries into the DB partition? so the WAL's fill-mark
oscillates but the DB is going to steadily grow (depending on the
previously mentioned factors of "...extents, checksums, RGW bucket
indices, and potentially other random stuff".

Is there an indicator that can be monitored to show that a spill is occurring?
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