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Don Burleson Blog 







Remove AWR tips

Oracle Database Tips by Donald BurlesonJuly 15, 2013

Question:  I did not pay the fee for the Oracle diagnostic pack and I would like to uninstall AWR and use STATSPACK.  How do I un-install  and/or disable AWR?

Answer:  AWR is an extra-cost package pre-installed into Oracle and AWR consists of several components, a schema that holds the AWR tables and indexes and scheduled jobs that populates the tables periodically and purge older data.  To use AWR you must purchase the Oracle Diagnostic Pack and Oracle Performance Pack.  Otherwise, it is a good idea to disable or remove the AWR, since even querying a DBA_HIST_* AWR table can make an entry in dba_features_usage_statistics.

Also see my notes on disabling AWR automatic data purging.

Rampant author Bert Scalzo offers these ways to remove the various AWR components from your database.

11g and onwards:  Disable performance and diagnostic packs with control_management_pack_access

From 11g and beyond, the control_management_pack_access parameter allows you to control which diagnostic and tuning packs are licensed and used. This parameter can be set as one of three values:

NONE - Neither pack is licensed or used.

DIAGNOSTIC - Only the DIAGNOSTIC pack is available.

DIAGNOSTIC+TUNING - Both packs are available. This is the default value!

To disable AWR via access to the packs, set control_management_pack_access=none;

Disable all of AWR:

 Download MOSC script dbms_awr.plb, compile this package, then execute the PL/SQL package dbms_awr.disable_awr() [see MOSC note 436386.1]

Disable AWR data colection:

Set your init.ora parameter STATISTICS_LEVEL = BASIC

Disable AWR snapshot collections:

Execute the Oracle provided PL/SQL package: dbms_workload_repository.modify_snapshot_settings(interval=>0) You can use OEM: Main Menu->Scheduler->Jobs, select the data grid row for GATHER_STATS_JOB, choose the disable drop-down action, then  finally press OK.

Remove AWR collection job:

Execute the Oracle provided PL/SQL package: dbms_scheduler.disable('GATHER_STATS_JOB').  You can use OEM: Main Menu->Workload->Automatic Workload Repository, select the "Edit" button and then select the last radio group item labeled: Turn off Snapshot Collection, finally press OK. 

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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

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