How can I look in the Tablespace TEMP?

Hey guys,.

I was reporting an issue I've been sporadically see in my data warehouse. Everyone in a while, when my ETL fires, I see it crash and just write to the TEMP tablespace, filling up to 5 GB as if it is sorting something, then I see CPU activity before the end of the ETL. I check dba_segments to see if nothing is permanent in the tablespace, but no return line. Because I have no idea how to track this problem, I would like to take a look at the temp tablespace directly to see what the Devil's going on in there.

Is there some sort of way to see what is in a tablespace without knowing its 'dynamic' name that is generated by Oracle? Just a way to see that these temporary segments are filled with? Perhaps I can solve this mysterious problem if I have an idea of what is being sorted, etc., I can most likely go to a specific problem.

I know that the session still stuck in the SYSMAN. Package MGMT_LOG (line 169) when he fills up my TEMP tablespace and seems to happen around a full refresh materialized view is made. The Mview uses several tables, and the explain command plan shows that it uses the index while building the mview.

Yet once, looking for a way to follow what is written to the TEMP tablespace, any help would be appreciated.


Kind regards
TimS

TIMS,

Here are a few views that you can use to monitor the mental health of temporary tablespaces

V$ TEMPFILE
V$ TEMPSTAT
V$ TEMP_EXTENT_MAP
V$ TEMP_EXTENT_POOL
V$ TEMP_SPACE_HEADER
V$ TEMPSEG_USAGE

Concerning

Tags: Database

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