hadoop-yarn-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tao Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-7037) Optimize data transfer with zero-copy approach for containerlogs REST API in NMWebServices
Date Thu, 17 Aug 2017 11:25:00 GMT
Tao Yang created YARN-7037:
------------------------------

             Summary: Optimize data transfer with zero-copy approach for containerlogs REST
API in NMWebServices
                 Key: YARN-7037
                 URL: https://issues.apache.org/jira/browse/YARN-7037
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: nodemanager
    Affects Versions: 2.8.3
            Reporter: Tao Yang
            Assignee: Tao Yang


Split this improvement from YARN-6259.
It's useful to read container logs more efficiently. With zero-copy approach, data transfer
pipeline (disk --> read buffer --> NM buffer --> socket buffer) can be optimized
to pipeline(disk --> read buffer --> socket buffer) .
In my local test, time cost of copying 256MB file with zero-copy can be reduced from 12 seconds
to 2.5 seconds.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-dev-help@hadoop.apache.org


Mime
View raw message