Database Tuning (MOSC)

MOSC Banner

enq: TX - row lock contention and PX Deq Credit: send blkd

edited Jul 26, 2011 4:01PM in Database Tuning (MOSC) 4 commentsAnswered
In my production database, following events,i have always seen top 5 wait event in AWR report.
enq: TX - row lock contention
PX Deq Credit: send blkd

 it was analysed  locking  few  select ... update query creating row lock contention
 
 also i have observerd PX Deq Credit: send blkd because of parallel query  consume huge amount of cpu.

  i have identified row lock contention query but can't find out parallel query ?

  could you please update me how i will get parallel query on AWR report or database?

database 10g and OS hp unix

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center