gcworker: fix gc miss locks when region merged during scanning & resolving locks #22252
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…lving locks Signed-off-by: lysu <[email protected]>
youjiali1995
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Jan 7, 2021
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Signed-off-by: lysu <[email protected]>
youjiali1995
reviewed
Jan 7, 2021
store/tikv/gcworker/gc_worker.go
Outdated
| if w.testingKnobs.resolveLocks != nil { | ||
| ok, err1 = w.testingKnobs.resolveLocks(loc.Region) | ||
| ok, err1 = w.testingKnobs.resolveLocks(locks, loc.Region) |
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| ok, err1 = w.testingKnobs.resolveLocks(locks, loc.Region) | |
| ok, err1 = w.testingKnobs.resolveLocks(locks, locForResolve.Region) |
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Looks like the log at line 1104 became not very meaningful 🤔
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Perhaps it's ok to simply change the loc to locForResolve too in that log
Comment on lines
920
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926
| s.gcWorker.testingKnobs.scanLocks = func(key []byte, regionID uint64) []*tikv.Lock { | ||
| if regionID == s.initRegion.regionID { | ||
| return []*tikv.Lock{ | ||
| {Key: []byte("a")}, | ||
| {Key: []byte("b")}, | ||
| {Key: []byte("o")}, | ||
| {Key: []byte("p")}, |
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You can compare the key parameter with these 4 locks, so that there should be 4 locks at line 942.
Signed-off-by: lysu <[email protected]>
Signed-off-by: lysu <[email protected]>
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youjiali1995
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Jan 7, 2021
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/merge |
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cherry pick to release-3.0 in PR #22266 |
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cherry pick to release-4.0 in PR #22267 |
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cherry pick to release-5.0-rc in PR #22268 |
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…lving locks (#22252) (#22268) Signed-off-by: ti-srebot <[email protected]>
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…lving locks (#22252) (#22267) Signed-off-by: ti-srebot <[email protected]> Signed-off-by: lysu <[email protected]>
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…lving locks (#22252) (#22266) Signed-off-by: ti-srebot <[email protected]> Signed-off-by: lysu <[email protected]>
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Signed-off-by: lysu [email protected]
What problem does this PR solve?
Issue Number: close #22245
Problem Summary:
just as
TestResolveLockRangeMeetRegionEnlargeCausedByRegionMergeWhat is changed and how it works?
What's Changed, How it Works:
we need re-scan region's lock when found merged region's EndKey 's larger than origional region's EndKey
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This change is