Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

NewUpdateMsgs panic #248

Open
recall704 opened this issue Dec 20, 2019 · 7 comments
Open

NewUpdateMsgs panic #248

recall704 opened this issue Dec 20, 2019 · 7 comments

Comments

@recall704
Copy link
Contributor

recall704 commented Dec 20, 2019 •
edited

  1. source type: mysql
  2. target type: mysql
  3. migrate type: mysqlstream
@recall704
Copy link
Contributor Author

recall704 commented Dec 20, 2019 •
edited 

				case replication.UPDATE_ROWS_EVENTv0, replication.UPDATE_ROWS_EVENTv1, replication.UPDATE_ROWS_EVENTv2:
					if isBinlogChecker {
						log.Debug(".")
					} else {
						log.Debugf("[binlogTailer] Update rows with: schemaName: %v, tableName: %v", schemaName, tableName)
					}

					log.Infof("[binlogTailer] NewUpdateMsgs with binlog: %x", ev)
					msgs, err := NewUpdateMsgs(
						tailer.cfg.Source.Host,
						schemaName,
						tableName,
						int64(e.Header.Timestamp),
						received,
						ev,
						tableDef)

them I add a log before NewUpdateMsgs like this log.Infof("[binlogTailer] NewUpdateMsgs with binlog: %x", ev)

@recall704
Copy link
Contributor Author

recall704 commented Dec 20, 2019 •
edited

logs

time="2019-12-20T10:50:49+08:00" level=info msg="[binlogTailer] NewUpdateMsgs with binlog: &{2 6 map[186:c00026ed20] %!x(bool=true) c00026ed20 186 1  4 ff ff [[65303662383231342d383163352d343331392d39
163362d333031316530613837646232 14 323031392d31322d32302031303a35303a30332e343630373836202b3030303020555443 323031392d31322d32302031303a35303a30332e343735303238202b3030303020555443[] [6530366238323134
d383163352d343331392d396163362d333031316530613837646232 15 323031392d31322d32302031303a35303a30362e343630343331202b3030303020555443 323031392d31322d32302031303a35303a30362e343734363931202b303030302055
5443[]] %!x(bool=true) 0 %!x(bool=false) %!x(bool=false)}"
panic: runtime error: slice bounds out of range

goroutine 71 [running]:
github.com/OneOfOne/xxhash.(*XXHash64).Sum64(0xc0000beae0, 0xc000d8c6a0)
        /go/src/github.com/OneOfOne/xxhash/xxhash_unsafe.go:214 +0x30e
github.com/mitchellh/hashstructure.(*walker).visit(0xc000e4cd00, 0x2aee920, 0xc00099e310, 0x194, 0x0, 0xc00099e310, 0x194, 0x0)
        /go/src/github.com/mitchellh/hashstructure/hashstructure.go:322 +0x16bd
github.com/mitchellh/hashstructure.(*walker).visit(0xc000e4cd00, 0x29d9240, 0xc000326d20, 0x97, 0x0, 0x0, 0x0, 0xc000032380)
        /go/src/github.com/mitchellh/hashstructure/hashstructure.go:304 +0x9c8
github.com/mitchellh/hashstructure.Hash(0x29d9240, 0xc000326d20, 0x48566c0, 0xc000326d20, 0x5, 0xc00099e300)
        /go/src/github.com/mitchellh/hashstructure/hashstructure.go:89 +0x16b
github.com/moiot/gravity/pkg/inputs/mysqlstream.dataHash(0xc0014648f5, 0xb, 0xc0013e7d80, 0x11, 0x2e59f59, 0x7, 0xc0004081e0, 0x1, 0x1, 0xc000af9e00, ...)
        /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:475 +0x253
github.com/moiot/gravity/pkg/inputs/mysqlstream.dataHashForUKChange(0xc0014648f5, 0xb, 0xc0013e7d80, 0x11, 0x2e59f59, 0x7, 0xc0004081e0, 0x1, 0x1, 0xc000af9e30, ...)
        /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:435 +0x105
github.com/moiot/gravity/pkg/inputs/mysqlstream.GenerateDataHashes(0xc0014648f5, 0xb, 0xc0013e7d80, 0x11, 0xc0016de000, 0xc000af9e30, 0xc000af9e00, 0x2a36a80, 0x2af0d01, 0xc000849420)
        /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:408 +0x3cb
github.com/moiot/gravity/pkg/inputs/mysqlstream.GenerateDMLDepHashes(0xc0011acb60, 0xc000c57dd0, 0xc000995560, 0xc000af9e00, 0xc000af9e90)
        /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:390 +0x7f
github.com/moiot/gravity/pkg/inputs/mysqlstream.NewUpdateMsgs(0xc00005bc50, 0x28, 0xc0019897e5, 0xb, 0xc000d8c680, 0x11, 0x5de0d11c, 0xbf705872ea53d189, 0xbeea9b2f0, 0x4bdc6e0, ...)
        /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:167 +0x1696
github.com/moiot/gravity/pkg/inputs/mysqlstream.(*BinlogTailer).Start.func1(0xc000486200, 0xc000e24008, 0xc00103a4b0, 0xc0013bf3e8)
        /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/binlog_tailer.go:383 +0x2326
created by github.com/moiot/gravity/pkg/inputs/mysqlstream.(*BinlogTailer).Start
        /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/binlog_tailer.go:150 +0x35c

@recall704 recall704 changed the title NewUpdateMsgs 发生 panic NewUpdateMsgs panic Dec 20, 2019
@Ryan-Git
Copy link
Collaborator

Ryan-Git commented Dec 20, 2019 •
edited

could you print the key (at mysqlstream/msg.go:475) so we can check why it fails? It seems there's some problem with xxhash.

@recall704
Copy link
Contributor Author

code

# mysqlstream/msg.go:475
    log.Infof("dataHash key: %v", key)

logs

time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest10 PRIMARY id 11750954]"
time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest3 PRIMARY id 11749486]"
time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest6 PRIMARY id 11751615]"
time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest3 PRIMARY id 11749635]"
time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest1 PRIMARY id 11748503]"
time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest10 PRIMARY id 11750955]"
time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest9 PRIMARY id 11750856]"
time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest1 PRIMARY id 11748504]"
time="2019-12-20T14:06:44+08:00" level=info msg="dataHash key: [test sbtest2 PRIMARY id 11750166]"
panic: runtime error: slice bounds out of range

goroutine 187 [running]:
github.com/OneOfOne/xxhash.(*XXHash64).Sum64(0xc0003a63c0, 0xc0003a63c0)
    /go/src/github.com/OneOfOne/xxhash/xxhash_unsafe.go:214 +0x30e
github.com/mitchellh/hashstructure.hashUpdateOrdered(0x331eaa0, 0xc0003a63c0, 0x7394306d06e88a10, 0x72f3286c31e6ce5a, 0x0)
    /go/src/github.com/mitchellh/hashstructure/hashstructure.go:345 +0x17d
github.com/mitchellh/hashstructure.(*walker).visit(0xc001aa3070, 0x29df3a0, 0xc002ae5de0, 0x97, 0x0, 0xc001b57e60, 0xc001aa3070, 0xc00090ce00)
    /go/src/github.com/mitchellh/hashstructure/hashstructure.go:312 +0xa25
github.com/mitchellh/hashstructure.Hash(0x29df3a0, 0xc002ae5de0, 0x48606e0, 0xc002ae5de0, 0xc001aa3178, 0x1)
    /go/src/github.com/mitchellh/hashstructure/hashstructure.go:89 +0x16b
github.com/moiot/gravity/pkg/inputs/mysqlstream.dataHash(0xc00114fff0, 0x4, 0xc001666020, 0x7, 0x2e60919, 0x7, 0xc00004f070, 0x1, 0x1, 0xc001b57dd0, ...)
    /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:476 +0x2ed
github.com/moiot/gravity/pkg/inputs/mysqlstream.dataHashForUKChange(0xc00114fff0, 0x4, 0xc001666020, 0x7, 0x2e60919, 0x7, 0xc00004f070, 0x1, 0x1, 0x0, ...)
    /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:435 +0x105
github.com/moiot/gravity/pkg/inputs/mysqlstream.GenerateDataHashes(0xc00114fff0, 0x4, 0xc001666020, 0x7, 0xc000eb2090, 0x0, 0xc001b57dd0, 0x2a3cc60, 0x2af7001, 0xc001e94490)
    /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:408 +0x3cb
github.com/moiot/gravity/pkg/inputs/mysqlstream.GenerateDMLDepHashes(0xc003019380, 0xc001670000, 0xc002419140, 0xc001b57dd0, 0xc001b57e00)
    /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:390 +0x7f
github.com/moiot/gravity/pkg/inputs/mysqlstream.NewInsertMsgs(0xc0002703f0, 0x28, 0xc00005afb0, 0x4, 0xc00005afb4, 0x7, 0x5dfc64ab, 0xbf77371d1eb9c52e, 0x2abe555fad, 0x4be6800, ...)
    /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/msg.go:92 +0x4c0
github.com/moiot/gravity/pkg/inputs/mysqlstream.(*BinlogTailer).Start.func1(0xc000758500, 0xc0002a6418, 0xc0007360c0, 0xc0004c23a0)
    /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/binlog_tailer.go:360 +0x20c0
created by github.com/moiot/gravity/pkg/inputs/mysqlstream.(*BinlogTailer).Start
    /go/src/github.com/moiot/gravity/pkg/inputs/mysqlstream/binlog_tailer.go:150 +0x35c

@Ryan-Git
Copy link
Collaborator

I can't reproduce this with the following test added to mysqlstream/msg_test.go. Could you have a try?

func TestXXHash(t *testing.T) {
	r := require.New(t)
	key := [][]interface{}{
		{"test", "sbtest10", "PRIMARY", "id", 11750954},
		{"test", "sbtest3", "PRIMARY", "id", 11749486},
		{"test", "sbtest6", "PRIMARY", "id", 11751615},
		{"test", "sbtest3", "PRIMARY", "id", 11749635},
		{"test", "sbtest1", "PRIMARY", "id", 11748503},
		{"test", "sbtest10", "PRIMARY", "id", 11750955},
		{"test", "sbtest9", "PRIMARY", "id", 11750856},
		{"test", "sbtest1", "PRIMARY", "id", 11748504},
		{"test", "sbtest2", "PRIMARY", "id", 11750166},
	}

	for _, k := range key {
		_, err := hashstructure.Hash(k, &hashOptions)
		r.NoError(err)
	}
}

@recall704
Copy link
Contributor Author

I also can't reproduce with the same data, is other way to catch this bug ?

@Ryan-Git
Copy link
Collaborator

You can delete the hashOptions to use default hasher, hopefully it could work.
I've no idea for the root cause now.. what's your go version in production?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
2 participants
@Ryan-Git @recall704