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https://issues.apache.org/jira/browse/HDFS-8956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15362333#comment-15362333
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SHIVADEEP GUNDOJU commented on HDFS-8956:
-----------------------------------------
Hello
I got exactly same problem
for me after uncommenting below line in /etc/hosts. datanode started
127.0.0.1 localhost
I don't know why how...but it started
Thanks
> Not able to start Datanode
> --------------------------
>
> Key: HDFS-8956
> URL: https://issues.apache.org/jira/browse/HDFS-8956
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode, namenode
> Affects Versions: 2.7.0
> Environment: Centos
> Reporter: sreelakshmi
>
> Data node service is not started on one of the data nodes, "java.net.bind
> exception" is thrown.
> Verified that ports 50010,50070 and 50075 are not in use by any other
> application.
> 15/08/26 01:50:15 INFO http.HttpServer2: HttpServer.start() threw a non Bind
> IOException
> java.net.BindException: Port in use: localhost:0
> at
> org.apache.hadoop.http.HttpServer2.openListeners(HttpServer2.java:919)
> at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:856)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.startInfoServer(DataNode.java:779)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1134)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:434)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2404)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2291)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2338)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2515)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2539)
> Caused by: java.net.BindException: Cannot assign requested address
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