So there's only one log:
On Mon, Feb 26, 2018 at 2:08 AM, qi Shi <m13913886148@xxxxxxxxx> wrote:
> class MDLog {
>
> map<uint64_t,LogSegment*> segments;
These are considered the live segments, and is where new ones get placed.
> set<LogSegment*> expiring_segments;
These are segments which are being flushed out to the backing RADOS
directory objects
> set<LogSegment*> expired_segments;
And these have actually been flushed, but maybe haven't actually been
deleted yet.
>
> }
>
> 1, segments
> 2,expiring_segments
> 3,expired_segments
>
>
> When the log will trim?
> what is the relationship between these three logs?
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