Streams Capture Process Running Extremely Slowly With 'CPU Time' as the Top Wait Event
(Doc ID 458214.1)
Last updated on MARCH 04, 2019
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 to 126.96.36.199 [Release 10.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
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The Streams capture process is observed to be running extremely slowly in 10.1 and 10.2 Streams. An AWR report reveals that the top wait event for the instance is 'CPU time'. When investigating the SQL that is the biggest contributor to the CPU time, execution of a procedure called SYS.LOGMNR_GTLO3 is the top contributor to both CPU time and elapsed time.
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