hchaverri opened a new pull request, #5691: URL: https://github.com/apache/hadoop/pull/5691
…er frequency <!-- Thanks for sending a pull request! 1. If this is your first time, please read our contributor guidelines: https://cwiki.apache.org/confluence/display/HADOOP/How+To+Contribute 2. Make sure your PR title starts with JIRA issue id, e.g., 'HADOOP-17799. Your PR title ...'. --> ### Description of PR Changes to the NamenodeHeartbeatService to update JMX reports on a configurable frequency or to disable JMX updates altogether, as opposed to updating it every time the service wakes up. This will help reduce the load on Namenodes in clusters with a high number of routers. With these changes, we expect the NamenodeStatusReport to contain slightly outdated Namenode information, which should not impact critical paths for routers. ### How was this patch tested? Added unit test on TestRouterNamenodeMonitoring#testJmxRequestFrequency that tests the following configurations: 1. Default configuration which should update JMX every time the report is generated. 2. Configuration with JMX updates disabled, which should never update JMX 3. Configuration with a high JMX update interval, which should not update JMX every time the report is generated. ### For code changes: - [X] Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')? - [X] Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation? - [X] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)? - [X] If applicable, have you updated the `LICENSE`, `LICENSE-binary`, `NOTICE-binary` files? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org