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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4356) BlockReaderLocal should use passed file descriptors rather than paths
Date Fri, 11 Jan 2013 22:06:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13551562#comment-13551562

Colin Patrick McCabe commented on HDFS-4356:

* added debug guard in {{BlockReaderLocal#close}}

* fix comment for {{FileInputStreamCache#closed}}

{{DaemonFactory}} has this code:
    public Thread newThread(Runnable runnable) {
      return new Daemon(runnable);

... and {{Daemon}}'s constructor looks like this:
  /** Construct a daemon thread. */
  public Daemon(Runnable runnable) {
    this.runnable = runnable;

So it will set the thread name appropriately.
> BlockReaderLocal should use passed file descriptors rather than paths
> ---------------------------------------------------------------------
>                 Key: HDFS-4356
>                 URL: https://issues.apache.org/jira/browse/HDFS-4356
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, hdfs-client, performance
>    Affects Versions: 2.0.3-alpha
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: 04b-cumulative.patch, _04b.patch, _04c.patch, 04-cumulative.patch,
04d-cumulative.patch, _04e.patch, 04f-cumulative.patch, _04f.patch, 04g-cumulative.patch
> {{BlockReaderLocal}} should use file descriptors passed over UNIX domain sockets rather
than paths.  We also need some configuration options for these UNIX domain sockets.

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