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RAC databases and ORA-1652: Unable To Extend Temp Segment By %s In Tablespace TEMP

edited Nov 28, 2018 11:13AM in Database Tuning (MOSC) 22 commentsAnswered

Hi Team,

We have a half RAC Exadata machine and after upgrading database to 12.2.0.1.0 we are facing temp tablespace  related issue .In our case we have allocated 250 GB temp tablespace(big file tablespace) to one user .

While running the query even though  the sufficient temp tablespace is available is also the query is failing with ORA-01652: unable to extend temp segment by 128 in tablespace TEMP_DATA  issue.When i dig down more on using this query  "select inst_id, tablespace_name, segment_file, total_blocks, used_blocks, free_blocks, max_used_blocks, max_sort_blocks from gv$sort_segment where tablespace_name='TEMP_DATA';"  while running SQL statement  i found a discrepancy the sql stament is not taking temp from other rac instance even which unused also .My query required 60 GB tempspace to run. So if its connect to instance -4 and instance -2 query will execute ,if query is connect

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