Deadlock on DBMS_ALERT_INFO
- From: "Lu Jiang" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "lu.jiang69@xxxxxxxxx" for DMARC)
- To: list <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 6 Aug 2014 13:42:11 -0700
Hello all,
We are having a deadlock issue on DBMS_ALERT_INFO in a production database.
Did run ADDM report and also submitted SR to Oracle support. The recommendation
is ‘The application code and logic need to be modified’.
Have sent the related info to the application vendor, but the vendor’s solution
is only to increase application retries when deadlock occurs.
To prevent this kind of deadlocks, is there anything I can do as a DBA? Could
anyone shed some light on this?
Thanks,
Lu
The following is from the trace file:
user session for deadlock lock 0X00000001D50D5148
sid: 2121 ser: 37862 audsid: 30482721 user: 0/SYS
flags: (0x100041) USR/- flags_idl: (0x1) BSY/-/-/-/-/-
flags2: (0x8)
pid: 57 O/S info: user: SYSTEM, term: FHM1PM64DBNA1, ospid: 76664
image: ORACLE.EXE (SHAD)
O/S info: user: FHM1PR\fhm1plp28, term: FHM1PCTXAPSA1, ospid: 12832:13964,
machine: FHM1PR\FHM1PCTXAPSA1
program: PASPVTAA.exe
application name: PASPVTAA.exe, hash value=521341192
Current SQL Statement:
UPDATE DBMS_ALERT_INFO SET CHANGED = 'Y', MESSAGE = :B2 WHERE NAME =
UPPER(:B1 )
Thanks,
Lu
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