[ https://issues.apache.org/jira/browse/YARN-977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13720810#comment-13720810 ]
Timothy St. Clair commented on YARN-977: ---------------------------------------- Usage statistics can also be reported via cgroups. > Interface for users/AM to know actual usage by the container > ------------------------------------------------------------ > > Key: YARN-977 > URL: https://issues.apache.org/jira/browse/YARN-977 > Project: Hadoop YARN > Issue Type: Improvement > Reporter: Omkar Vinit Joshi > > Today we allocate resource (memory and cpu) and node manager starts the > container with requested resource [I am assuming they are using cgroups]. But > there is definitely a possibility of users requesting more than what they > actually may need during the execution of their container/job-task. If we add > a way for users/AM to know the actual usage of the requested/completed > container then they may optimize it for next run.. > This will be helpful for AM to optimize cpu/memory resource requests by > querying NM/RM to know avg/max cpu/memory usage of the container or may be > containers belonging to application. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira