DBMS_CAPTURE_ADM.BUILD is Hanging with "ENQ: TX - Contention" Waiting Event. (Doc ID 1423364.1)

Last updated on JULY 13, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 to 11.2.0.3 [Release 11.1 to 11.2]
Information in this document applies to any platform.

Symptoms

Executing dbms_capture_adm.build will hang waiting for any open transactions to complete.

tkprof summary of the 10046 shows the following:

Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
latch free 1 0.00 0.00
enq: TX - contention 1 1261.75 1261.75
enq: CF - contention 1 0.03 0.03
control file sequential read 14 0.03 0.03
Disk file operations I/O 4 0.00 0.00
log file sequential read 2 0.00 0.00
log file single write 2 0.01 0.02
control file parallel write 8 0.02 0.14
SQL*Net message to client 1 0.00 0.00



We notice high value of enq: TX - contention.

Changes

Upgrade to 11.1.0.6 and above from ulterior release or new deployment in 11.1.0.6 and above.

Cause

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