How to Kill Session Causing Concurrent Manager to Hang

Problem Description
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A session is causing the concurrent manager to hang. Jobs are pending since
this session is unprocessed by a user. This article describes how to identify
and kill the problem session.


Additional Search Words
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select alter sql*plus


Solution Description
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Perform the following steps to kill the session:

1. Log into SQL*Plus as sys.

2. To identify the problem session, issue the SQL*Plus statement below:

SQL> select session_id, type, mode_held from dba_locks;
(the type should be that of )

3. To kill the problem session once identified, issue the following
SQL*Plus statement:

SQL> alter system kill session ;

The concurrent manager is now free; there is no need to change its status.