Lei Guo commented on YARN-4001:

[~zhiguohong], can you share some number about the execution time in your 

> normalizeHostName takes too much of execution time
> --------------------------------------------------
>                 Key: YARN-4001
>                 URL: https://issues.apache.org/jira/browse/YARN-4001
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager, resourcemanager
>            Reporter: Hong Zhiguo
>            Assignee: Hong Zhiguo
>            Priority: Minor
> For each NodeHeartbeatRequest, NetUtils.normalizeHostName is called under a 
> lock.  I did profiling for a very large cluster and found out 
> NetUtils.normalizeHostName takes most execution time of 
> ResourceTrackerService.nodeHeartbeat(...).
> We'd better have an option to use raw IP (plus port) as the Node identity to 
> scale for large clusters.

This message was sent by Atlassian JIRA

Reply via email to