This timing related trap happens only on an MLN DPF setup
where the different nodes start up at different times,
usually when one node starts much later than the rest.
The node where the trap occurs is in the process of starting up
and has not reached the initialization of the federated fmp
daemon anchor yet. While on another MLN the
startup has completed including starting up global event
monitors. The event monitor can dispatch a request to the
trapping MLN where a subagent is deployed to service the
request. This subagent can be interrupted at any time and
drive an application termination. Part of the application
termination involves clean up of the federated daemon
anchor. However, if the federated daemon anchor hasn't
been initialized yet this can lead to the trap.
The stack trace of the crashed subagent looks like the
following:
sqleCleanupFedDaemonAnchor__Fv + 0xD0
sqleFedFMPManagerFv + 0x150
TermApplication__14sqeApplicationFv + 0x5C
DestroyAppl__14sqeAppServicesFP14sqeApplication + 0x49C
sqleProcessSubRequest__FP8sqeAgent + 0x298
RunEDU__8sqeAgentFv + 0x308
EDUDriver__9sqzEDUObjFv + 0x78
sqloEDUEntry + 0x4
In the db2diag.log, the trapping node (i.e. node 4) initiates
db2start
much later than node 0 where the subagent request was
dispatched.
2013-07-11-02.01.54.471940+480 E217431820A314 LEVEL: Event
PID : 234888 TID : 1 PROC :
db2star2
INSTANCE: db2inst2 NODE : 000
EDUID : 1
FUNCTION: DB2 UDB, base sys utilities, DB2StartMain, probe:911
MESSAGE : ADM7513W Database manager has started.
START : DB2 DBM
...
2013-07-11-02.02.12.276740+480 E217723221A314 LEVEL: Event
PID : 135176 TID : 1 PROC :
db2star2
INSTANCE: db2inst2 NODE : 004
EDUID : 1
FUNCTION: DB2 UDB, base sys utilities, DB2StartMain, probe:911
MESSAGE : ADM7513W Database manager has started.
START : DB2 DBM
2013-07-11-02.02.12.329472+480 I217724005A531 LEVEL: Error
PID : 415072 TID : 2057 PROC : db2sysc
4
INSTANCE: db2inst2 NODE : 004
APPHDL : 0-69 APPID: *N0.DB2.130710180215
AUTHID : DB2INST2
EDUID : 2057 EDUNAME: db2agent (idle) 4
FUNCTION: DB2 UDB, base sys utilities, sqleagnt_sigsegvh,
probe:1
MESSAGE : Error in agent servicing application with coor_node:
DATA #1 : Hexdump, 2 bytes
0x070000000E009330 : 0000 |
