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Oracle Dynamic Monitoring Service - metricdump Log

Greg Mally
Consulting Solutions Architect


Have you ever wondered how to control/configure the metricdump log files that accumulate in your WebLogic Server domains configured with Fusion Middleware?  This blog will help to answer that question.

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When running WebLogic Server instances configured with Fusion Middleware (e.g., SOA Suite), there are Dynamic Monitoring Service (DMS) metrics that are gathered every 3 hours by default.  These metrics are located in the $DOMAIN_HOME/servers/<server_name>/logs/metrics directory as archive files using the following file name convention: metricdump-<date.time>.log.gz.  For more details on understanding what DMS offers, see the Oracle documentation: Using the Oracle Dynamic Monitoring Service

There is a way to control the frequency and the amount of metrics that are gathered.  This is accomplished by modifying the dms_config.xml file which is located in the $DOMAIN_HOME/config/fmwconfig/servers/<server_name>/ directory.  The section of the configuration file for controlling the metrics looks like the following:

  <dump intervalSeconds="10800" maxSizeMBytes="75" enabled="true"/>

The settings for frequency, size, and on/off are fairly intuitive.  If you have running servers when you change the configuration, a bounce of them is required to pickup the modifications.

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