updateStatsWorker got runtime error: index out of range

[darren]

tidb version:

Release Version: v2.1.0-beta-107-g8b913c95e
Git Commit Hash: 8b913c95efc168a5b0811ecd2baa4f7c41385a30
Git Branch: master
UTC Build Time: 2018-07-25 06:32:03
GoVersion: go version go1.10.3 darwin/amd64
Race Enabled: false
TiKV Min Version: 2.1.0-alpha.1-ff3dd160846b7d1aed9079c389fc188f7f5ea13e

stack:

2018/07/25 14:38:39.464 domain.go:750: [error] updateStatsWorker, runtime error: index out of range, goroutine 112 [running]:                                                                                                                             
github.com/pingcap/tidb/util.GetStack(0xc4203933f0, 0x1d52d80, 0x2a056d0)                                                                                                                                                                                 
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/util/misc.go:52 +0x74
github.com/pingcap/tidb/domain.recoverInDomain(0x1f2ec97, 0x11, 0x1790000)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/domain/domain.go:749 +0x62
panic(0x1d52d80, 0x2a056d0)
        /usr/local/Cellar/go/1.10.3/libexec/src/runtime/panic.go:502 +0x229
github.com/pingcap/tidb/util/chunk.Row.GetString(...)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/util/chunk/row.go:71
github.com/pingcap/tidb/util/chunk.Compare(0xc4452da8a0, 0xc4, 0x0, 0xc449469580, 0x0)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/util/chunk/compare.go:188 +0xc4c
github.com/pingcap/tidb/util/chunk.(*Chunk).LowerBound.func1(0xc4, 0x0)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/util/chunk/compare.go:216 +0x4f
sort.Search(0x188, 0xc420393768, 0x1e18b01)
        /usr/local/Cellar/go/1.10.3/libexec/src/sort/search.go:66 +0x58
github.com/pingcap/tidb/util/chunk.(*Chunk).LowerBound(0xc4452da8a0, 0x0, 0xc449469580, 0xffffffffffffffff, 0x0)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/util/chunk/compare.go:215 +0x93
github.com/pingcap/tidb/statistics.buildBucketFeedback(0xc445175680, 0xc4448f6900, 0xc4291da8f0, 0x0)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/statistics/feedback.go:224 +0xe5
github.com/pingcap/tidb/statistics.splitBuckets(0xc445175680, 0xc4448f6900, 0xc42ccd4900, 0xc42ccd4900, 0xc420393a40, 0x1010788, 0x90, 0x1ec6240, 0x1)                                                                                                   
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/statistics/feedback.go:504 +0x50
github.com/pingcap/tidb/statistics.UpdateHistogram(0xc445175680, 0xc4448f6900, 0x1)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/statistics/feedback.go:537 +0x39
github.com/pingcap/tidb/statistics.(*Handle).UpdateStatsByLocalFeedback(0xc420526200, 0x20474e0, 0xc43390a930)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/statistics/update.go:432 +0x43f
github.com/pingcap/tidb/domain.(*Domain).updateStatsWorker(0xc4202b9400, 0x205d020, 0xc42040c0e0, 0x203fce0, 0xc4201642e0)
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/domain/domain.go:684 +0x80d
created by github.com/pingcap/tidb/domain.(*Domain).UpdateTableStatsLoop
        /Users/darren/Sources/go/src/github.com/pingcap/tidb/domain/domain.go:606 +0x146

[zimulala]

PTAL @lamxTyler

[zimulala]

@darren
Thanks for your report!

[alivxxx]

@darren Thanks for your feedback! It will be fixed soon.