Sessions hang

Hi All,
Using Oracle 10gR2 (64 Bit) on RHEL 5.5. Using some customized applications.
Getting frequently blocked sessions. Understand it's a application logic issue, but from the database side we can monitor the sessions.
The holding or the blocking session is 1 or 2, The waiter/blocked sessions is many.
I have used scripts to monitor the blocking sessions and kill them. But facing some issues ;
1) When I kill the blocking/holding session - The transaction(Update) on Blocked/waiting sessions says "....rows updated"
2) The other cascading waiter sessions still hangs..and is "active"
Should I Kill both the blocking and the blocked sessions. Please advise.

Pls check is there any Bitmap Indexes on these Tables. Because Bitmap Indexes are also is one source of Locking, and not recommended to be created on transaction tables.
Rgds,
Ahmer
N.B.: To earn a good reputation on forums, and if you want that your questions will be answered timely. Kindly adopt the habit of marking your questions closed as soon as you get the answer. and be courteous to the people who trying to help.

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Message was edited by:
Dion_Cho

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Kamran Agayev A. wrote:
user12240205 wrote:
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Author of the upcoming book - *"Oracle Backup & Recovery: Expert secrets for using RMAN and Data Pump"*
http://www.rampant-books.com/book_1002_rman_backup_recovery.htm
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https://support.mozilla.org/en-US/questions/1000544?esab=a&as=aaq
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Hi, I'm a Tab junky...and I'm not changing. I have this issue also. After 2 weeks of utter frustration, not liking any of the roll backs, etc, I dove into other browsers....and found Comodo IceDragon, which is based of Firefox 26.0.... but better. I can't even describe how stable it is, even compared to FF26.
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Fetch        0      0.00       0.00          0          0          0           0
total        2      0.01       0.01          0          0          0           0
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----------------------------------------   Waited ---------- ------------
row cache lock                                  5        0.00          0.00
db file sequential read                   295932636        0.07       5066.63
gc cr grant 2-way                          727813        0.02        233.95
latch: gc element                              80        0.00          0.00
latch: gcs resource hash                      870        0.00          0.00
latch free                                      2        0.00          0.00
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all this time sql_id for the session remanined in the sql :
ALTER TABLE DBMRPT.DBM_BIAUTO_SUSP ENABLE CONSTRAINT DBS1_DCFH_FK ..

hi..
Go through [http://orainternals.wordpress.com/2009/06/02/library-cache-lock-and-library-cache-pin-waits/]
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Hi all,
suppose a material code has been created using mm01, know while performing
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Hi!
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Friend ,
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>
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Refer https://cw.sdn.sap.com/cw/docs/DOC-38580?treeid=DOC-8116 .
http://help.sap.com/saphelp_webas620/helpdata/EN/c4/3a5ef8505211d189550000e829fbbd/content.htm
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>
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