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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4473) don't create domain socket unless we need it
Date Wed, 06 Feb 2013 23:52:13 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13573009#comment-13573009

Colin Patrick McCabe commented on HDFS-4473:

bq. One question: is there some reason that the domain socket paths can't be under the normal
test build dir, and so have to be under /tmp? If not, I recommend moving those files to be
under the test build dir.

That's a good question.  Actually, there is a reason: UNIX domain socket paths can't be longer
than like 108 bytes in total, which would cause failures for a lot of people who have long
test build directory paths-- including Jenkins, if I remember correctly.
> don't create domain socket unless we need it
> --------------------------------------------
>                 Key: HDFS-4473
>                 URL: https://issues.apache.org/jira/browse/HDFS-4473
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, hdfs-client, performance
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>         Attachments: HDFS-4473.001.patch
> If {{dfs.domain.socket.path}} is set, but we don't have anything enabled which would
need it (like {{dfs.client.read.shortcircuit}}), don't create the socket.

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