Replicats Hang At DELETE FROM SYS.STREAMS$_APPLY_PROGRESS (Doc ID 2232717.1)

Last updated on FEBRUARY 21, 2017

Applies to:

Oracle GoldenGate - Version 12.1.2.0.0 and later
Information in this document applies to any platform.

Symptoms

Integrated Replicat Process is Hang.

In the top of OEM Top Activity we see following SQL:


"DELETE FROM SYS.STREAMS$_APPLY_PROGRESS WHERE APPLY#=:1 AND ((LENGTH(COMMIT_POSITION) < LENGTH(:2)) OR ((LENGTH(COMMIT_POSITION) = LENGTH(:2)) AND (COMMIT_POSITION < :2)))"

The top wait of this SQL was "read by other session"

If you kill the replicat process and start it again, then the Wait event will be changed to below,


The top wait here was "enq: SR contention"


Cause

Sign In with your My Oracle Support account

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

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms