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Race in replica.go #129

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Race in replica.go#129
@charl

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@charl
charl
opened on Jun 24, 2014

To run the demo as described I added the -race flag and I end up with the following trace when starting the first node:

$ ./demo -id=0
====== Spawn new replica ======
Done!
Wait 1 seconds to start
====== start ======
==================
WARNING: DATA RACE
Write by goroutine 8:
  github.com/go-distributed/epaxos/replica.(*Replica).updateMaxInstanceNum()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:623 +0x153
  github.com/go-distributed/epaxos/replica.(*Replica).dispatch()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:426 +0x9c
  github.com/go-distributed/epaxos/replica.(*Replica).eventLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:317 +0x117

Previous read by goroutine 11:
  github.com/go-distributed/epaxos/replica.(*Replica).checkTimeout()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:290 +0x20e
  github.com/go-distributed/epaxos/replica.(*Replica).timeoutLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:280 +0xff

Goroutine 8 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:254 +0x4f
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee

Goroutine 11 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:257 +0x97
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee
==================
==================
WARNING: DATA RACE
Write by goroutine 8:
  github.com/go-distributed/epaxos/replica.(*Replica).dispatch()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:439 +0x57e
  github.com/go-distributed/epaxos/replica.(*Replica).eventLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:317 +0x117

Previous read by goroutine 9:
  github.com/go-distributed/epaxos/replica.(*Replica).findAndExecute()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:644 +0x329
  github.com/go-distributed/epaxos/replica.(*Replica).executeLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:329 +0xff

Goroutine 8 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:254 +0x4f
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee

Goroutine 9 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:255 +0x67
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee
==================
==================
WARNING: DATA RACE
Read by goroutine 9:
  github.com/go-distributed/epaxos/replica.(*Replica).findAndExecute()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:652 +0x3e6
  github.com/go-distributed/epaxos/replica.(*Replica).executeLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:329 +0xff

Previous write by goroutine 8:
  github.com/go-distributed/epaxos/replica.NewInstance()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/instance.go:136 +0x1f6
  github.com/go-distributed/epaxos/replica.(*Replica).dispatch()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:439 +0x48c
  github.com/go-distributed/epaxos/replica.(*Replica).eventLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:317 +0x117

Goroutine 9 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:255 +0x67
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee

Goroutine 8 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:254 +0x4f
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee
==================
==================
WARNING: DATA RACE
Read by goroutine 11:
  github.com/go-distributed/epaxos/replica.(*Instance).inactiveDuaration()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/instance.go:1091 +0x65
  github.com/go-distributed/epaxos/replica.(*Instance).isTimeout()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/instance.go:1098 +0x6d
  github.com/go-distributed/epaxos/replica.(*Replica).checkTimeout()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:294 +0x34f
  github.com/go-distributed/epaxos/replica.(*Replica).timeoutLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:280 +0xff

Previous write by goroutine 8:
  github.com/go-distributed/epaxos/replica.(*Instance).touch()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/instance.go:1087 +0x65
  github.com/go-distributed/epaxos/replica.(*Replica).dispatch()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:447 +0x7e1
  github.com/go-distributed/epaxos/replica.(*Replica).eventLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:317 +0x117

Goroutine 11 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:257 +0x97
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee

Goroutine 8 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:254 +0x4f
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee
==================
==================
WARNING: DATA RACE
Read by goroutine 11:
  github.com/go-distributed/epaxos/replica.(*Instance).isTimeout()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/instance.go:1098 +0x8b
  github.com/go-distributed/epaxos/replica.(*Replica).checkTimeout()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:294 +0x34f
  github.com/go-distributed/epaxos/replica.(*Replica).timeoutLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:280 +0xff

Previous write by goroutine 8:
  github.com/go-distributed/epaxos/replica.NewInstance()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/instance.go:136 +0x1f6
  github.com/go-distributed/epaxos/replica.(*Replica).dispatch()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:439 +0x48c
  github.com/go-distributed/epaxos/replica.(*Replica).eventLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:317 +0x117

Goroutine 11 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:257 +0x97
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee

Goroutine 8 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:254 +0x4f
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee
==================
==================
WARNING: DATA RACE
Write by goroutine 10:
  github.com/go-distributed/epaxos/replica.(*Replica).batchPropose()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:398 +0x56d
  github.com/go-distributed/epaxos/replica.(*Replica).proposeLoopWithoutBatching()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:366 +0x26e
  github.com/go-distributed/epaxos/replica.(*Replica).proposeLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:340 +0x6a

Previous read by goroutine 8:
  github.com/go-distributed/epaxos/replica.(*Replica).Pack()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:925 +0x1c5
  github.com/go-distributed/epaxos/replica.(*Replica).StoreReplica()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:948 +0x86
  github.com/go-distributed/epaxos/replica.(*Replica).updateMaxInstanceNum()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:626 +0x1bc
  github.com/go-distributed/epaxos/replica.(*Replica).initInstance()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:559 +0x573
  github.com/go-distributed/epaxos/replica.(*Instance).handlePropose()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/instance.go:492 +0x157
  github.com/go-distributed/epaxos/replica.(*Instance).nilStatusProcess()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/instance.go:257 +0x7d1
  github.com/go-distributed/epaxos/replica.(*Replica).dispatch()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:458 +0xc13
  github.com/go-distributed/epaxos/replica.(*Replica).eventLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:317 +0x117

Goroutine 10 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:256 +0x7f
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee

Goroutine 8 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:254 +0x4f
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee
==================
==================
WARNING: DATA RACE
Read by goroutine 11:
  github.com/go-distributed/epaxos/replica.(*Replica).checkTimeout()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:294 +0x2df
  github.com/go-distributed/epaxos/replica.(*Replica).timeoutLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:280 +0xff

Previous write by goroutine 8:
  github.com/go-distributed/epaxos/replica.(*Replica).dispatch()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:439 +0x57e
  github.com/go-distributed/epaxos/replica.(*Replica).eventLoop()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:317 +0x117

Goroutine 11 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:257 +0x97
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee

Goroutine 8 (running) created at:
  github.com/go-distributed/epaxos/replica.(*Replica).Start()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/replica/replica.go:254 +0x4f
  main.main()
      /home/charl/Projects/go/src/github.com/go-distributed/epaxos/demo/server.go:93 +0x9ee
==================

My environment:

$ go version
go version go1.3 linux/amd64
$ uname -a
Linux cm-x1c 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2013 x86_64 x86_64 x86_64 GNU/

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