Jason Lowe created YARN-7583: -------------------------------- Summary: Reduce overhead of container reacquisition Key: YARN-7583 URL: https://issues.apache.org/jira/browse/YARN-7583 Project: Hadoop YARN Issue Type: Improvement Components: nodemanager Reporter: Jason Lowe
When reacquiring containers after a nodemanager restart the Linux container executor invokes the container executor to essentially kill -0 the process to check if it is alive. It would be a lot cheaper on Linux to stat the /proc/<pid> directory which the nodemanager can do directly rather than pay for the fork-and-exec through the container executor and potential signal permission issues. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-dev-h...@hadoop.apache.org