Deadlock On MDS Stack While Load Testing
(Doc ID 2906852.1)
Last updated on NOVEMBER 02, 2022
Applies to:Oracle JDeveloper - Version 220.127.116.11.0 and later
Information in this document applies to any platform.
ADF 18.104.22.168 application load testing with 400 users presents stuck threads and deadlocks related to MDS (in less than 5 minutes)
ExecuteThread: '1' - waiting on <0x1ab2cd3e> (a oracle.mds.core.CachedMOProvider - locked <0x4fg5hi6j> (a oracle.mds.core.CachedMOContent)
ExecuteThread: '3' - waiting on <0x4fg5hi6j> (a oracle.mds.core.CachedMOContent) - locked <0x1ab2cd3f> (a oracle.mds.core.CachedMOProvider)
Turning off "Detect Metadata Changes" and "Allow Unbounded Task Flow Customizations" options in adf-config.xml do not help.
Setting the MDS cache size to unlimited in adf-config.xml can improve situation, but issue may reproduce either way after 30 minutes of execution.
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