Major - P3 To reproduce:
- Bring up a node as 2.6
- Add a user
- Restart the node as 2.4.8
- Try authenticating as the user
The command will fail with the weird error message
Error: 13111 { errmsg: "exception: field not found, expected type 2", code: 13111, ok: 0.0 }
and the mongod will dump stack.
m27000| Mon Dec 16 14:04:20.059 [conn1] Assertion: 13111:field not found, expected type 2
m27000| 0x10044c60b 0x100425fbe 0x10042607d 0x100401320 0x1004013a9 0x1000f85d1 0x100147965 0x1001487a2 0x10014915c 0x1002408de 0x1002410df 0x1001ee10f 0x10000b682 0x100441fd9 0x10047f1a5 0x7fff8e75b899 0x7fff8e75b72a 0x7fff8e75ffc9
m27000| 0 mongod-2.4.8 0x000000010044c60b _ZN5mongo15printStackTraceERSo + 43
m27000| 1 mongod-2.4.8 0x0000000100425fbe _ZN5mongo11msgassertedEiPKc + 174
m27000| 2 mongod-2.4.8 0x000000010042607d _ZN5mongo11msgassertedEiRKSs + 29
m27000| 3 mongod-2.4.8 0x0000000100401320 _ZNK5mongo11BSONElement3chkEi + 800
m27000| 4 mongod-2.4.8 0x00000001004013a9 _ZNK5mongo11BSONElement6StringEv + 41
m27000| 5 mongod-2.4.8 0x00000001000f85d1 _ZN5mongo15CmdAuthenticate3runERKSsRNS_7BSONObjEiRSsRNS_14BSONObjBuilderEb + 1971
m27000| 6 mongod-2.4.8 0x0000000100147965 _ZN5mongo12_execCommandEPNS_7CommandERKSsRNS_7BSONObjEiRSsRNS_14BSONObjBuilderEb + 37
m27000| 7 mongod-2.4.8 0x00000001001487a2 _ZN5mongo7Command11execCommandEPS0_RNS_6ClientEiPKcRNS_7BSONObjERNS_14BSONObjBuilderEb + 2282
m27000| 8 mongod-2.4.8 0x000000010014915c _ZN5mongo12_runCommandsEPKcRNS_7BSONObjERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi + 1036
m27000| 9 mongod-2.4.8 0x00000001002408de _ZN5mongo11runCommandsEPKcRNS_7BSONObjERNS_5CurOpERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi + 46
m27000| 10 mongod-2.4.8 0x00000001002410df _ZN5mongo8runQueryERNS_7MessageERNS_12QueryMessageERNS_5CurOpES1_ + 1551
m27000| 11 mongod-2.4.8 0x00000001001ee10f _ZN5mongo16assembleResponseERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE + 1519
m27000| 12 mongod-2.4.8 0x000000010000b682 _ZN5mongo16MyMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE + 198
m27000| 13 mongod-2.4.8 0x0000000100441fd9 _ZN5mongo17PortMessageServer17handleIncomingMsgEPv + 1657
m27000| 14 mongod-2.4.8 0x000000010047f1a5 thread_proxy + 229
m27000| 15 libsystem_pthread.dylib 0x00007fff8e75b899 _pthread_body + 138
m27000| 16 libsystem_pthread.dylib 0x00007fff8e75b72a _pthread_struct_init + 0
m27000| 17 libsystem_pthread.dylib 0x00007fff8e75ffc9 thread_start + 13
Error: 13111 { errmsg: "exception: field not found, expected type 2", code: 13111, ok: 0.0 }
0
m27000| Mon Dec 16 14:04:20.063 [signalProcessingThread] got signal 15 (Terminated: 15), will terminate after current cmd ends
m27000| Mon Dec 16 14:04:20.063 [signalProcessingThread] now exiting
Attached is a js file that will reproduce.