Generally, this is caused by insufficient space. please check the total capacity of your cluster and used, remaining ratio, and check dfs.datanode.du.reserved in the hdfs-site.xml
if this value is larger than your remained capacity, then you got this Exception. On Tue, Feb 25, 2014 at 10:35 AM, Manoj Khangaonkar <khangaon...@gmail.com>wrote: > Hi > > Can one of the implementors comment on what conditions trigger this error > ? > > All the data nodes show up as commissioned. No errors during startup > > If I google for this error, there are several posts reporting the issue : > but most of the answers have weak solutions like reformating and restarting > none of which help. > > My guess is that this is a networking /port access issue. If anyone can > shed light on what conditions cause this error , it would be much > appreciated. > > regards > > > > > On Mon, Feb 24, 2014 at 1:07 PM, Manoj Khangaonkar > <khangaon...@gmail.com>wrote: > >> Hi, >> >> I setup a cluster with >> >> machine1 : namenode and datanode >> machine 2 : data node >> >> A simple hdfs copy is not working. Can someone help with this issue ? >> Several folks have posted this error on the web, But I have seen a good >> reason or solution. >> >> command: >> bin/hadoop fs -copyFromLocal ~/hello /manoj/ >> >> Error: >> copyFromLocal: File /manoj/hello._COPYING_ could only be replicated to 0 >> nodes instead of minReplication (=1). There are 2 datanode(s) running and >> no node(s) are excluded in this operation. >> 14/02/24 12:56:38 ERROR hdfs.DFSClient: Failed to close file >> /manoj/hello._COPYING_ >> org.apache.hadoop.ipc.RemoteException(java.io.IOException): File >> /manoj/hello._COPYING_ could only be replicated to 0 nodes instead of >> minReplication (=1). There are 2 datanode(s) running and no node(s) are >> excluded in this operation. >> at >> org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget(BlockManager.java:1384) >> at >> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2477) >> at >> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:555) >> at >> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:387) >> at >> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:59582) >> at >> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585) >> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928) >> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2048) >> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2044) >> at java.security.AccessController.doPrivileged(Native Method) >> at javax.security.auth.Subject.doAs(Subject.java:396) >> at >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491) >> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2042) >> >> at org.apache.hadoop.ipc.Client.call(Client.java:1347) >> at org.apache.hadoop.ipc.Client.call(Client.java:1300) >> at >> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206) >> at com.sun.proxy.$Proxy9.addBlock(Unknown Source) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at >> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186) >> at >> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) >> at com.sun.proxy.$Proxy9.addBlock(Unknown Source) >> at >> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:330) >> at >> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1226) >> at >> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1078) >> at >> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:514) >> >> My setup is very basic : >> core-site.xml >> <configuration> >> <property> >> <name>fs.default.name</name> >> <value>hdfs://n-prd-bst-beacon01:9000</value> >> </property> >> <property> >> <name>hadoop.tmp.dir</name> >> <value>/home/manoj/hadoop-2.2.0/tmp</value> >> </property> >> </configuration> >> >> hdfs-site.xml >> <configuration> >> <property> >> <name>dfs.replication</name> >> <value>1</value> >> </property> >> <property> >> <name>dfs.permissions</name> >> <value>false</value> >> </property> >> </configuration> >> >> slaves: >> localhost >> n-prd-bst-beacon02.advertising.aol.com >> >> Namenode and Datanode (on both machines) are up & running without errors >> >> regards >> >> -- >> http://khangaonkar.blogspot.com/ >> > > > > -- > http://khangaonkar.blogspot.com/ >
