High CPU Usage On OAM 188.8.131.52.0
Last updated on APRIL 09, 2018
Applies to:Oracle Access Manager - Version 184.108.40.206.0 and later
Information in this document applies to any platform.
After running for some time, the cpu hits 100%.
The AdminServer process as well as the oam_server process both show the same issue
This is a part of the thread dump taken from the adminserver:
<Bug:16479818> JDBC NTFConnection threads are stuck waiting and consuming CPU" is fixed in JDBC 220.127.116.11. But based on an internal documented discussing in a <Bug:21267432> where "It is not supported to replace the JDBC driver in an FMW home with a later version. The 18.104.22.168, 22.214.171.124 based driver, is intended for WLS only."
So having in mind that this is a FMW type of install, eg, not WLS standalone, there seems to be a desync between the JDBC libraries/versions and is best to implement fix for JDBC version (not to upgrade it)
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