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Backport the stale read optimizations to 6.5 #818

Merged
merged 2 commits into from
May 29, 2023
Merged

Backport the stale read optimizations to 6.5 #818

merged 2 commits into from
May 29, 2023

Commits on May 26, 2023

  1. add metrics for stale-read traffic (tikv#776) 

    Signed-off-by: you06 <you1474600@gmail.com>
    @you06
    you06 committed May 26, 2023
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  2. Remove stale-read flag after resolving lock (tikv#792) 

    * remove stale-read when key-is-locked

Signed-off-by: you06 <you1474600@gmail.com>

* disable follower read for batch get

Signed-off-by: you06 <you1474600@gmail.com>

* the stale-read flag may already set to false

Signed-off-by: you06 <you1474600@gmail.com>

* fix batchget

Signed-off-by: you06 <you1474600@gmail.com>

* Reset busy-threshold when stale read fallback to leader read

Signed-off-by: you06 <you1474600@gmail.com>

* address comment

Signed-off-by: you06 <you1474600@gmail.com>

* trigger CI

Signed-off-by: you06 <you1474600@gmail.com>

---------

Signed-off-by: you06 <you1474600@gmail.com>
    @you06
    you06 committed May 26, 2023
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