syncer: sync region leaders between PD leader and follower (#2591) #2763
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Signed-off-by: ti-srebot <ti-srebot@pingcap.com>
ti-srebot
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@JmPotato please accept the invitation then you can push to the cherry-pick pull requests. |
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No release note, Please follow https://github.com/pingcap/community/blob/master/contributors/release-note-checker.md |
Signed-off-by: JmPotato <ghzpotato@gmail.com>
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cherry-pick #2591 to release-4.0
Signed-off-by: JmPotato ghzpotato@gmail.com
What problem does this PR solve?
Add the feature requested in issue #2542
What is changed and how it works?
Add
region_leadersfield inSyncRegionResponseto pass the region's leader info between PD leader and follower. And the region leader changing will also trigger sync now to make the region leader info more accurate.Check List
Tests
Related changes
pingcap/kvprotoRelease note
Sync region leaders between PD leader and followers rather than just waiting for heartbeats