Oracle Linux: System Slowness caused by Tasks Blocking on rds_ib_flush_mr_pool
(Doc ID 2734207.1)
Last updated on FEBRUARY 25, 2021
Applies to:Linux OS - Version Oracle Linux 7.8 with Unbreakable Enterprise Kernel [4.14.35] and later
System running is slow and Oracle tasks are found to be blocked on rds_ib_flush_mr_pool wait channel when listing through ps command. Oracle Database is running slowly with huge file log sync activities.
The following symptoms would be
Top performance data shows
After kernel upgrade to 4.14.35-1902.303.5.2.el7uek.x86_64 version. This would happen when Exadata version is upgraded from 19.2.4 to 19.3.10
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