Try to look at the latch waits and session waits events.
"Mercadante,
Thomas F" To: Multiple recipients of list
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All,
My current application (still under development) is experiencing Oracle
deadlock problems. The applications people are performing stress testing
where the application is being repeatedly called simulating actual users
hitting the database.
The application is written using VB thru ADO and COM, Oracle 816 on NT.
My problem is that, while I can review the trace file produced, I can't
figure out what the actual deadlock is occurring on. I have seen deadlock
trace files that clearly state "table blah", but in this case, I get:
*** 2001-06-21 14:32:03.841
*** SESSION ID:(27.31211) 2001-06-21 14:32:03.810
DEADLOCK DETECTED
Deadlock graph:
---------Blocker(s)--------
---------Waiter(s)---------
Resource Name process session holds waits process session holds
waits
DX-0000003b-00000000 22 18 X 24 27
X
session 18: DID 0001-0018-0000003C session 27: DID
0001-0018-0000003C
Rows waited on:
Session 27: no row
*** 2001-06-21 14:32:03.857
ksedmp: internal or fatal error
ORA-00060: deadlock detected while waiting for resource
Is there something like TKPROF that will process the trace file and give me
more info on what is happening? It looks like I am waiting for a resource
to be freed, but which one is the question.
thanks for any help.
Tom Mercadante
Oracle Certified Professional
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