[jira] [Commented] (YARN-6494) add mounting of HDFS Short-Circuit path for docker containers

["Eric Badger (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-6494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16102242#comment-16102242 ] 

Eric Badger commented on YARN-6494:
-----------------------------------

This looks like a good addition to me. [~shanekumpf@gmail.com], [~templedf], could you take a look?

> add mounting of HDFS Short-Circuit path for docker containers
> -------------------------------------------------------------
>
>                 Key: YARN-6494
>                 URL: https://issues.apache.org/jira/browse/YARN-6494
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: nodemanager
>            Reporter: Jaeboo Jeong
>            Assignee: Jaeboo Jeong
>         Attachments: YARN-6494.001.patch, YARN-6494.002.patch
>
>
> Currently there is a error message about HDFS short-circuit when docker container start.
> {code}
> WARN [main] org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory: error creating DomainSocket
> java.net.ConnectException: connect(2) error: No such file or directory when trying to connect to ‘xxxxxxx’
>     at org.apache.hadoop.net.unix.DomainSocket.connect0(Native Method)
>     at org.apache.hadoop.net.unix.DomainSocket.connect(DomainSocket.java:250)
>     at org.apache.hadoop.hdfs.shortcircuit.DomainSocketFactory.createSocket(DomainSocketFactory.java:164)
>     at org.apache.hadoop.hdfs.BlockReaderFactory.nextDomainPeer(BlockReaderFactory.java:752)
> ...
> {code}
> if dfs.client.read.shortcircuit is true and dfs.domain.socket.path isn't equal “”, we need to mount volume for short-circuit path.



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