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SYSAUX rapid growth due to Statistics Advisor

edited Aug 14, 2019 5:06AM in Database Administration (MOSC) 5 commentsAnswered ✓

Hello,

Oracle version: 12.2.0.1.0 SE

JUL2019 patches applied: (OJVM + DBRU)

  29774415 12.2.0.1             SUCCESS

  29757449 12.2.0.1             SUCCESS                       190716 DBRU

I faced issue with rapid SYSAUX growth. All is very good described in Doco (Doc ID 2305512.1).

Oracle proposed two solutions:

1. Drop The Statistics Advisor Task (AUTO_STATS_ADVISOR_TASK)

If dropping the task would cause error: ORA-20001: Statistics Advisor: Invalid Task Name For the current user Oracle recommends recreate ADVISOR TASK and reorganize table and its indexes. (Doc ID 2127675.1)

2. Solution similar but in this case table and indexes rebuild is manual to avoid big undo. In second solution ORA-20001 is not mentioned. There is only information how to recreate task and information that task CANNOT be disabled.

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