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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-10180) Getting some error while increasing the hadoop cluster size.
Date Mon, 23 Dec 2013 19:46:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-10180?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Karthik Kambatla resolved HADOOP-10180.

    Resolution: Invalid

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> Getting some error while increasing the hadoop cluster size. 
> -------------------------------------------------------------
>                 Key: HADOOP-10180
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10180
>             Project: Hadoop Common
>          Issue Type: Task
>            Reporter: Ravi Hemnani
>            Priority: Trivial
> We have a 5-node hadoop cluster and we are trying to increase the size of the cluster.
We have added 2 new disks to each of the 5-boxes and we followed all the steps of putting
the disk to the hadoop cluster. Everything works fine except when we restart a datanode, there
are errors multiple times in the log file. Following is the error which appears in the log
> 2013-12-23 14:32:19,406 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: DatanodeRegistration(,
storageID=DS-1937554000-, infoPort=50075, ipcPort=50020):DataXceiver
> org.apache.hadoop.hdfs.server.datanode.BlockAlreadyExistsException: Block blk_-8997395530627676954_276834
is valid, and cannot be written to.
> 	at org.apache.hadoop.hdfs.server.datanode.FSDataset.writeToBlock(FSDataset.java:1428)
> 	at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:114)
> 	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:302)
> 	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:112)
> 	at java.lang.Thread.run(Thread.java:724)

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