Parallel Query / Index Rebuild Runs Slow with "PX Deq Credit: Send blkd" and "PX Deq: Table Q Normal"
(Doc ID 1537216.1)
Last updated on MARCH 12, 2021
Applies to:Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
Parallel Query / Index Rebuild waits on the following Wait Events and takes long time to complete.
"PX Deq Credit: Send blkd" and "PX Deq: Table Q Normal".
It takes hours to complete in Parallel mode whereas it takes only less time in Serial mode.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document