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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3446) HostsFileReader silently ignores bad includes/excludes
Date Sun, 17 Jun 2012 00:11:42 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13393410#comment-13393410

Hadoop QA commented on HDFS-3446:

-1 overall.  Here are the results of testing the latest attachment 
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 6 new or modified test files.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit

    -1 core tests.  The patch failed these unit tests in hadoop-common-project/hadoop-common


    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/2660//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/2660//console

This message is automatically generated.
> HostsFileReader silently ignores bad includes/excludes
> ------------------------------------------------------
>                 Key: HDFS-3446
>                 URL: https://issues.apache.org/jira/browse/HDFS-3446
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 1.0.0, 2.0.0-alpha
>            Reporter: Matthew Jacobs
>            Assignee: Matthew Jacobs
>         Attachments: hdfs-3446.txt, hdfs-3446.txt
> The HostsFileReader silently fails if the includes or excludes files do
> not exist or are not readable. The current behavior is to overwrite the
> existing set of hosts or excluded hosts, regardless of whether or not
> the includes/excludes file exists.
> This behavior was introduced in HADOOP-5643 to support updating the job
> tracker's node lists. The HostsFileReader is no longer used by the job
> tracker. If this behavior was intentional, it no longer seems necessary
> for any reason. The HostsFileReader is still used by NodeListManager as
> well as the DatanodeManager, and in both cases, throwing an exception
> when the include/exclude files aren't found/readable is desirable.
> We should validate the given includes and excludes files before using
> them.

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