Massive Row Cache Locks
(Doc ID 2359588.1)
Last updated on APRIL 01, 2019
Applies to:Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
Customer running 4 node RAC DB with release 18.104.22.168.
1) In the alert log of one of the instances there was flood of below messages :
">>> WAITED TOO LONG FOR A ROW CACHE ENQUEUE LOCK"
2) Too many "ora_jxxx" processes were invoked on that Instance.
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