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ODI 12c Studio Frequently Hangs Due to "enq:TM - contention" Database Locks (Doc ID 1993986.1)

Last updated on MAY 17, 2023

Applies to:

Oracle Data Integrator - Version to [Release 12c]
Information in this document applies to any platform.


In a heavily used and/or shared Oracle Data Integrator (ODI) 12c environment, where many users simultaneously access ODI Studio objects, ODI frequently freezes or hangs. On the database side, messages regarding enq: TM - contention are observed.

For example, when one user tries to save a Mapping, ODI Studio is blocked or 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.


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