Empty syncer config item cause DM-master panic #3732
Description
Bug Report
Please answer these questions before submitting your issue. Thanks!
- What did you do? If possible, provide a recipe for reproducing the error.
task config
---
name: test
task-mode: all
target-database:
host: "127.0.0.1"
port: 4000
user: "test"
password: "/Q7B9DizNLLTTfiZHv9WoEAKamfpIUs="
mysql-instances:
- source-id: "mysql-replica-01"
syncer-config-name: "global"
syncers:
global:
start-task ./task.toml
- What did you expect to see?
task runs normal or report a config error - What did you see instead?
master panic
dm-master startup 2021-08-21 16:28:34.106341359 +0800 CST m=+0.239573077
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x3627087]
goroutine 487 [running]:
github.com/pingcap/dm/dm/config.(*TaskConfig).adjust(0xc000f6a360, 0x0, 0x0)
/nvme1n1/gmhdbjd/code/dm/dm/config/task.go:592 +0x73c7
github.com/pingcap/dm/dm/config.(*TaskConfig).Decode(0xc000f6a360, 0xc000f90500, 0x49c, 0x0, 0x0)
/nvme1n1/gmhdbjd/code/dm/dm/config/task.go:393 +0x3a5
github.com/pingcap/dm/dm/master.(*Server).generateSubTask(0xc000450240, 0x52c1138, 0xc0006bdda0, 0xc000f90500, 0x49c, 0xa, 0xa, 0x0, 0x0, 0x0, ...)
/nvme1n1/gmhdbjd/code/dm/dm/master/server.go:1341 +0x10a
github.com/pingcap/dm/dm/master.(*Server).StartTask(0xc000450240, 0x52c1138, 0xc0006bdda0, 0xc0006bddd0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/code/dm/dm/master/server.go:419 +0x546
github.com/pingcap/dm/dm/pb._Master_StartTask_Handler.func1(0x52c1138, 0xc0006bdda0, 0x42cffe0, 0xc0006bddd0, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/code/dm/dm/pb/dmmaster.pb.go:3666 +0x19c
github.com/grpc-ecosystem/go-grpc-prometheus.(*ServerMetrics).UnaryServerInterceptor.func1(0x52c1138, 0xc0006bdda0, 0x42cffe0, 0xc0006bddd0, 0xc000a467e0, 0xc000410bb8, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/github.com/grpc-ecosystem/[email protected]/server_metrics.go:107 +0x1b5
github.com/grpc-ecosystem/go-grpc-middleware.ChainUnaryServer.func1.1.1(0x52c1138, 0xc0006bdda0, 0x42cffe0, 0xc0006bddd0, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/github.com/grpc-ecosystem/[email protected]/chain.go:25 +0x13c
go.etcd.io/etcd/etcdserver/api/v3rpc.newUnaryInterceptor.func1(0x52c1138, 0xc0006bdda0, 0x42cffe0, 0xc0006bddd0, 0xc000a467e0, 0xc000a46800, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/go.etcd.io/[email protected]/etcdserver/api/v3rpc/interceptor.go:70 +0x80a
github.com/grpc-ecosystem/go-grpc-middleware.ChainUnaryServer.func1.1.1(0x52c1138, 0xc0006bdda0, 0x42cffe0, 0xc0006bddd0, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/github.com/grpc-ecosystem/[email protected]/chain.go:25 +0x13c
go.etcd.io/etcd/etcdserver/api/v3rpc.newLogUnaryInterceptor.func1(0x52c1138, 0xc0006bdda0, 0x42cffe0, 0xc0006bddd0, 0xc000a467e0, 0xc000a46820, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/go.etcd.io/[email protected]/etcdserver/api/v3rpc/interceptor.go:77 +0x143
github.com/grpc-ecosystem/go-grpc-middleware.ChainUnaryServer.func1.1.1(0x52c1138, 0xc0006bdda0, 0x42cffe0, 0xc0006bddd0, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/github.com/grpc-ecosystem/[email protected]/chain.go:25 +0x13c
github.com/grpc-ecosystem/go-grpc-middleware.ChainUnaryServer.func1(0x52c1138, 0xc0006bdda0, 0x42cffe0, 0xc0006bddd0, 0xc000a467e0, 0xc000410bb8, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/github.com/grpc-ecosystem/[email protected]/chain.go:34 +0x290
github.com/pingcap/dm/dm/pb._Master_StartTask_Handler(0x43b25c0, 0xc000450240, 0x52c1138, 0xc0006bdda0, 0xc0007abb60, 0xc0007389f0, 0x0, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/code/dm/dm/pb/dmmaster.pb.go:3668 +0x4a7
google.golang.org/grpc.(*Server).processUnaryRPC(0xc0003ac480, 0x52d5658, 0xc0010dd500, 0xc0007ae500, 0xc000bc28a0, 0x681e160, 0x0, 0x0, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/google.golang.org/[email protected]/server.go:1024 +0x1a5c
google.golang.org/grpc.(*Server).handleStream(0xc0003ac480, 0x52d5658, 0xc0010dd500, 0xc0007ae500, 0x0)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/google.golang.org/[email protected]/server.go:1313 +0xf11
google.golang.org/grpc.(*Server).serveStreams.func1.1(0xc00073b0f0, 0xc0003ac480, 0x52d5658, 0xc0010dd500, 0xc0007ae500)
/nvme1n1/gmhdbjd/environment/go/pkg/mod/google.golang.org/[email protected]/server.go:722 +0x199
created by google.golang.org/grpc.(*Server).serveStreams.func1
/nvme1n1/gmhdbjd/environment/go/pkg/mod/google.golang.org/[email protected]/server.go:720 +0x131