Grid Control Repository: How to Modify the Retention and Purging Policies for Metric Data?
Last updated on JANUARY 13, 2018
Applies to:Enterprise Manager Base Platform - Version 10.2.0.2 to 22.214.171.124 [Release 10.2 to 11.1]
Information in this document applies to any platform.
The metric data that is collected and uploaded by the Agents on the targets hosts is called the 'raw' data, which is stored by the OMS into the repository tables. One of the DBMS_Job's (Rollup job) in the Repository is reponsible for rolling up / aggregating this raw data into 1Hour metric tables, which are further rolled up into 1Day tables. The 1Hour and 1Day is used for providing historical metric information in the Grid Console UI pages. The 3 tables that store this data are:
After the data is aggregated, it considered eligible for purging. However, a certain period of time has to pass for data to actually be purged. This period of time is called the Retention time.
The goal of this document is to provide information on how to modify the Grid Control Default Retention and Purging Policies in 10g Grid Control.
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