-
Type:
Bug
-
Resolution: Done
-
Priority:
Major - P3
-
Affects Version/s: None
-
Component/s: mongoreplay
-
None
-
Platforms 2017-01-23
I am using mongoreplay to playback production traffic, and it crashed with this trace.
[ec2-user@ip-10-2-0-98 ~]$ LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/media/ephemeral0/ ./mongoreplay play -p /media/ephemeral0/playback.bson --host mongodb://10.2.0.210:27017 --no-preprocess
2016/12/08 01:57:35 Doing playback at 1.00x speed
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x5c95a2]
goroutine 1771 [running]:
panic(0x73e620, 0xc4200140b0)
/opt/go/src/runtime/panic.go:500 +0x1a1
github.com/10gen/llmgo.(*MongoSocket).SimpleQuery.func1(0xb913a0, 0xc420014150, 0x0, 0x0)
/data/mci/aec3fed01f1c23fbbb82149b78096a79/src/vendor/src/github.com/10gen/llmgo/socket.go:449 +0xc2
github.com/10gen/llmgo.(*MongoSocket).kill(0xc421912b60, 0xb913a0, 0xc420014150, 0x1)
/data/mci/aec3fed01f1c23fbbb82149b78096a79/src/vendor/src/github.com/10gen/llmgo/socket.go:431 +0x492
github.com/10gen/llmgo.(*MongoSocket).readLoop(0xc421912b60)
/data/mci/aec3fed01f1c23fbbb82149b78096a79/src/vendor/src/github.com/10gen/llmgo/socket.go:677 +0x13d2
created by github.com/10gen/llmgo.NewSocket
/data/mci/aec3fed01f1c23fbbb82149b78096a79/src/vendor/src/github.com/10gen/llmgo/socket.go:277 +0x278
I was concern this may related to ulimit for fd, but it is set to 20k
[ec2-user@ip-10-2-0-98 ~]$ ulimit -n 20000
and on mongod, the number of connections peaked at 230
insert query update delete getmore command dirty used flushes vsize res qrw arw net_in net_out conn set repl time
*0 *0 *0 *0 0 96|0 0.0% 80.0% 0 23.1G 22.2G 0|0 0|0 78.1k 80.4k 230 logkeeper-rs0 PRI Dec 8 01:58:32.216
From stack, seems related to driver? The old mongotape build I tried works iirc.