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Disable stale read when retry leader with keyIsLocked error #43659

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you06 opened this issue May 9, 2023 · 0 comments · Fixed by #44240
Closed

Disable stale read when retry leader with keyIsLocked error #43659

you06 opened this issue May 9, 2023 · 0 comments · Fixed by #44240
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affects-6.5 affects-7.1 sig/transaction SIG:Transaction type/enhancement The issue or PR belongs to an enhancement.

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you06 commented May 9, 2023

Enhancement

We have an optimization that when stale read meet dataIsNotReady, fallback to leader, and it may suffer keyIsLocked error from leader, after resolving lock, we need to retry directly with leader, unless there may be an useless dataIsNotReady.

Now:

follower(dataIsNotReady) -> leader(keyIsLocked) -> lock resolve -> follower(dataIsNotReady) -> leader(success)

Change to:

follower(dataIsNotReady) -> leader(keyIsLocked) -> lock resolve -> -> leader(success)
@you06 you06 added the type/enhancement The issue or PR belongs to an enhancement. label May 9, 2023
@you06 you06 mentioned this issue May 9, 2023
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@cfzjywxk cfzjywxk mentioned this issue May 22, 2023
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@you06 you06 mentioned this issue May 29, 2023
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ti-chi-bot bot pushed a commit that referenced this issue May 29, 2023
@you06
store/copr: disable stale read when meeting lock for cop (#44240)
10e6e42 
close #43659
This was referenced May 29, 2023
Merged
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ti-chi-bot bot pushed a commit that referenced this issue May 29, 2023
@ti-chi-bot
store/copr: disable stale read when meeting lock for cop (#44240) (#4…
97ef067 
…4251)

close #43659
@cfzjywxk cfzjywxk mentioned this issue Jun 21, 2023
Merged
16 tasks
@jebter jebter added the sig/transaction SIG:Transaction label Jul 3, 2023
ti-chi-bot bot pushed a commit that referenced this issue Jul 12, 2023
@ti-chi-bot
store/copr: disable stale read when meeting lock for cop (#44240) (#4…
12c1cf2 
…4253)

close #43659
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store/copr: disable stale read when meeting lock for cop you06/tidb
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@jebter @VelocityLight @you06