enq: TX - contention when _lm_drm_disable is set to 2
(Doc ID 2818792.1)
Last updated on NOVEMBER 02, 2021
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124.0 and later
Information in this document applies to any platform.
On 19C RAC, "enq: TX - contention" can occur if "_lm_drm_disable" is set to 2 or any levels contains 2, such as 3, 6, 7.
the behavior can be reproduced by a test case which runs DMLs concurrently.
"_lm_drm_disable" is set to 2 or any levels contains 2.
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