[
https://issues.apache.org/jira/browse/HDFS-3934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13673375#comment-13673375
]
Hudson commented on HDFS-3934:
------------------------------
Integrated in Hadoop-trunk-Commit #3843 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/3843/])
Remove extra code that code erroneously committed in HDFS-3934 (cmccabe)
(Revision 1489083)
Result = SUCCESS
cmccabe :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1489083
Files :
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/HostFileManager.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDecommission.java
> duplicative dfs_hosts entries handled wrong
> -------------------------------------------
>
> Key: HDFS-3934
> URL: https://issues.apache.org/jira/browse/HDFS-3934
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.1-alpha
> Reporter: Andy Isaacson
> Assignee: Colin Patrick McCabe
> Priority: Minor
> Attachments: HDFS-3934.001.patch, HDFS-3934.002.patch,
> HDFS-3934.003.patch, HDFS-3934.004.patch, HDFS-3934.005.patch,
> HDFS-3934.006.patch, HDFS-3934.007.patch, HDFS-3934.008.patch,
> HDFS-3934.010.patch, HDFS-3934.011.patch, HDFS-3934.012.patch,
> HDFS-3934.013.patch, HDFS-3934.014.patch, HDFS-3934.015.patch,
> HDFS-3934.016.patch, HDFS-3934.017.patch
>
>
> A dead DN listed in dfs_hosts_allow.txt by IP and in dfs_hosts_exclude.txt by
> hostname ends up being displayed twice in {{dfsnodelist.jsp?whatNodes=DEAD}}
> after the NN restarts because {{getDatanodeListForReport}} does not handle
> such a "pseudo-duplicate" correctly:
> # the "Remove any nodes we know about from the map" loop no longer has the
> knowledge to remove the spurious entries
> # the "The remaining nodes are ones that are referenced by the hosts files"
> loop does not do hostname lookups, so does not know that the IP and hostname
> refer to the same host.
> Relatedly, such an IP-based dfs_hosts entry results in a cosmetic problem in
> the JSP output: The *Node* column shows ":50010" as the nodename, with HTML
> markup {{<a
> href="http://:50075/browseDirectory.jsp?namenodeInfoPort=50070&dir=%2F&nnaddr=172.29.97.196:8020";
> title="172.29.97.216:50010">:50010</a>}}.
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