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Batch handle region heartbeats to reduce lock contention #1448

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overvenus opened this issue Mar 1, 2019 · 0 comments
Open

Batch handle region heartbeats to reduce lock contention #1448

overvenus opened this issue Mar 1, 2019 · 0 comments
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type/enhancement The issue or PR belongs to an enhancement.

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@overvenus
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PD stores all regions info in a globle RW lock. For every region heartbeat we have to acquire the lock to check whether region info is changed. There may be severe lock contention if region count cxceeds a certain threshold.
To resovle this problem we can batch handle region heatbeats.
@overvenus overvenus added the type/enhancement The issue or PR belongs to an enhancement. label Mar 1, 2019
@overvenus overvenus mentioned this issue Apr 1, 2019
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