Site is very slow-Dead lock in database?

Question

Hi Friends,
DB version:10.2.0.1
OS:RHEL
I have a table whose structure is as below
SQL>desc prod
Name Null? Type
ID NOT NULL VARCHAR2(40)
TITLE VARCHAR2(500)
VALUE VARCHAR2(2000)
Column ID has two contarints primary key constraint and check constraint.
Actual problem:
================
One of our site is very slow and as a i DBA i have checked the alert log file of the database and found the error
Wed Jul 7 01:26:50 2010
ORA-00060: Deadlock detected. More info in file /u01/app/oracle/admin/PUBDB01/udump/pubdb01_ora_25844.trc.
I checked the trace file and found the information as below.
DEADLOCK DETECTED
[Transaction Deadlock]
Current SQL statement for this session:
DELETE FROM prod WHERE id = :1
The following deadlock is not an ORACLE error. It is a
deadlock due to user error in the design of an application
or from issuing incorrect ad-hoc SQL. The following
information may aid in determining the deadlock:
Now i want to know the reason behind the slowness of the site is because of the deadlock which i have found in the database or some thing else. If the reason is because of the deadlock then what i have to do that SQL statement inorder to perform it optimally.
Please need your help and suggestions.

Answer 1

Get statspack/AWR running at regular intervals.
Deadlocks are resolved instantaneously by Oracle itself - I don't think that could cause the entire site to slow down.