question Re: Move data gives Found duplicated storage UUID error in Archives of Support Questions (Read Only) https://community.cloudera.com/t5/Archives-of-Support-Questions/Move-data-gives-Found-duplicated-storage-UUID-error/m-p/223066#M63370 <P>Yes it did, thanks!</P> Mon, 26 Jun 2017 20:43:05 GMT ed_day 2017-06-26T20:43:05Z Move data gives Found duplicated storage UUID error https://community.cloudera.com/t5/Archives-of-Support-Questions/Move-data-gives-Found-duplicated-storage-UUID-error/m-p/223064#M63368 <P>Hi I tried moving my data to a different directory (/data/hdfs/data) by adding the new directory to datanode dir in HDP configs and then copying the data, but I get this error:</P><PRE>2017-06-21 15:29:53,432 ERROR impl.FsDatasetImpl (FsDatasetImpl.java:activateVolume(398)) - Found duplicated storage UUID: DS-011fd6ee-105d-4c21-ba03-8f43bc75f0b2 in /data/hdfs/data/current/VERSION. 2017-06-21 15:29:53,432 ERROR datanode.DataNode (BPServiceActor.java:run(772)) - Initialization failed for Block pool &lt;registering&gt; (Datanode Uuid 18224fd5-7fbe-4700-b22b-64352741f4a7) service to master.royble.co.uk/192.168.1.1:8020. Exiting. java.io.IOException: Found duplicated storage UUID: DS-011fd6ee-105d-4c21-ba03-8f43bc75f0b2 in /data/hdfs/data/current/VERSION. at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.activateVolume(FsDatasetImpl.java:399) at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.addVolume(FsDatasetImpl.java:425) at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.&lt;init&gt;(FsDatasetImpl.java:329) at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetFactory.newInstance(FsDatasetFactory.java:34) at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetFactory.newInstance(FsDatasetFactory.java:30) at org.apache.hadoop.hdfs.server.datanode.DataNode.initStorage(DataNode.java:1556) at org.apache.hadoop.hdfs.server.datanode.DataNode.initBlockPool(DataNode.java:1504) at org.apache.hadoop.hdfs.server.datanode.BPOfferService.verifyAndSetNamespaceInfo(BPOfferService.java:319) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.connectToNNAndHandshake(BPServiceActor.java:269) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:760) at java.lang.Thread.run(Thread.java:745)</PRE><P>Should I just delete the original copied data files (/hadoop/hdfs/data)?</P><P>TIA!!</P> Wed, 21 Jun 2017 22:09:12 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Move-data-gives-Found-duplicated-storage-UUID-error/m-p/223064#M63368 ed_day 2017-06-21T22:09:12Z Re: Move data gives Found duplicated storage UUID error https://community.cloudera.com/t5/Archives-of-Support-Questions/Move-data-gives-Found-duplicated-storage-UUID-error/m-p/223065#M63369 <P>If you are doing this on single node in cluster then yes delete the original copied data files and Namenode will take care of recreating missing data files. </P> Fri, 23 Jun 2017 00:05:35 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Move-data-gives-Found-duplicated-storage-UUID-error/m-p/223065#M63369 rreddy 2017-06-23T00:05:35Z Re: Move data gives Found duplicated storage UUID error https://community.cloudera.com/t5/Archives-of-Support-Questions/Move-data-gives-Found-duplicated-storage-UUID-error/m-p/223066#M63370 <P>Yes it did, thanks!</P> Mon, 26 Jun 2017 20:43:05 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Move-data-gives-Found-duplicated-storage-UUID-error/m-p/223066#M63370 ed_day 2017-06-26T20:43:05Z