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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3446) HostsFileReader silently ignores bad includes/excludes
Date Fri, 29 Jun 2012 22:47:43 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13404289#comment-13404289

Hudson commented on HDFS-3446:

Integrated in Hadoop-Common-trunk-Commit #2412 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2412/])
    HDFS-3446. HostsFileReader silently ignores bad includes/excludes. Contributed by Matthew
Jacobs. (Revision 1355584)

     Result = SUCCESS
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1355584
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/HostsFileReader.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestHostsFileReader.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommission.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlocksWithNotEnoughRacks.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NNThroughputBenchmark.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestDecommissioningStatus.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestStartup.java

> 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
>             Fix For: 2.0.1-alpha
>         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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