ODI 12c Studio Frequently Hangs Due To "enq:TM - contention" Database Locks

(Doc ID 1993986.1)

Last updated on JUNE 28, 2016

Applies to:

Oracle Data Integrator - Version 12.1.3.0.0 and later
Information in this document applies to any platform.

Symptoms

In a heavily used shared Oracle Data Integrator (ODI) 12c environment, where many developers/users do simultaneously access ODI Studio > Designer objects...

... ODI frequently freezes/hangs, and this is caused by enq: TM - contention application waits observed on database side.

For example, when one user tries to save a Mapping, ODI Studio is blocked/freezes, despite the fact that the respective Mapping isn't used by any other user at that time.

To release the lock, the ODI Studio process has to be killed.

Cause

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