Connor comments

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                                            Connor

readpool: update yatp and add new metrics for unified-read-pool

/merge

commands: use ReaderWithStats in flashback_to_version command

/merge

Many failed query OPM after tikv fault recover and cause QPS falls zero

I can't recall what the exact problem is. Did I ever investigate it? @Lily2025

titan: unexpected increasing empty regions when inserting large records

These empty regions are not really empty. The script generates the blob value by `repeat(md5(rand()), 102400 / 32)` which can be compressed greatly for the sake of the repeated pattern....

titan: unexpected increasing empty regions when inserting large records

Value with repeated pattern is not common in production, especially for blob type. But it's better to make it concrete with Titan enabled.

Slow to handle Raft messages but no obvious latency source

Encounter same problem, can you reproduce it?

Slow to handle Raft messages but no obvious latency source

> > Encounter same problem, can you reproduce it? > > I cannot. The issue is from some user and they only encountered the problem once. In my case, it...

util: add customize waker

> > Where does the performance improvement come from? I don't see anywhere using `Box` > > The framegraph shows the difference are in `AtomicWaker::register`. It can be caused by...

titan configuration documentation

Sorry, I don't get the point. What's your suggested description?

Refine the flashback error handling

> Signed-off-by: JmPotato [[email protected]](mailto:[email protected]) > > Since the flashback state check is before other checks like EpochNotMatch, so we need to invalidate the region cache also. Why not move the...