SMON Blocking Drop Temporary Tablespace (Doc ID 1500044.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.
*** Checked for relevance on 05-Apr-2016 ***

Symptoms

The following steps have been performed successfully:

- Create a new temporary tablespace

- Declare as the new default temp

- Make sure that no users have the old temp as their default

Now trying to drop the old temporary tablespace, the session hangs.

Analyzing the problem shows the following:

- Tracing the session using 10046 shows that the session is waiting for event "enq: TS - contention'"

- System state dump shows that the session is blocked by SMON

- SMON is waiting for event "SMON TIMER"

 

Cause

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