One RAC Instance Not Getting Many PX Slaves and Instance Load Is Unbalanced
(Doc ID 2693657.1)
Last updated on JULY 28, 2020
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 to 18.104.22.168.0 [Release 12.2 to 20.0]
Information in this document applies to any platform.
One instance in a RAC cluster seems to have the fewest parallel slaves, and is the least loaded. A bounce of the instances fixes it for a while, but then the issue returns.
The following PX tracing was used to see the problem:
The RDBMS version is >= 12.2 and <= 20.0.
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