Yes, if the length matches and if you haven't specifically asked it to ignore checksums.
On Thursday, July 9, 2015, Giri P <[email protected]> wrote: > will distcp do checksum after it copied the data to target ? > > On Tue, Feb 3, 2015 at 4:15 AM, Artem Ervits <[email protected] > <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: > >> Another good option is hftp. >> >> Artem Ervits >> On Feb 3, 2015 6:42 AM, "xeonmailinglist" <[email protected] >> <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: >> >>> I have found the problem. I started to use `webhdfs` and everything is >>> ok. >>> >>> >>> On 03-02-2015 10:40, xeonmailinglist wrote: >>> >>> What do you mean by no path is given? Even if I launch this command, I >>> get the same error…. What path should I put here? >>> >>> $ hadoop distcp hdfs://hadoop-coc-1:50070/input1 >>> hdfs://hadoop-coc-2:50070/input1 >>> >>> Thanks, >>> >>> On 02-02-2015 19:59, Alexander Alten-Lorenz wrote: >>> >>> Have a closer look: >>> >>> hdfs://hadoop-coc-2:50070/ >>> >>> >>> No Path is given. >>> >>> >>> On 02 Feb 2015, at 20:52, xeonmailinglist <[email protected] >>> <javascript:_e(%7B%7D,'cvml','[email protected]');>> wrote: >>> >>> Hi, >>> >>> I am trying to copy data using distcp but I get this error. Both hadoop >>> runtime are working properly. Why is this happening? >>> >>> >>> vagrant@hadoop-coc-1:~/Programs/hadoop$ hadoop distcp >>> hdfs://hadoop-coc-1:50070/input1 hdfs://hadoop-coc-2:50070/ >>> 15/02/02 19:46:37 ERROR tools.DistCp: Invalid arguments: >>> java.io.IOException: Failed on local exception: >>> com.google.protobuf.InvalidProtocolBufferException: Protocol message >>> end-group tag did not match expected tag.; Host Details : local host is: >>> "hadoop-coc-1/127.0.1.1"; destination host is: "hadoop-coc-2":50070; >>> at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:772) >>> at org.apache.hadoop.ipc.Client.call(Client.java:1472) >>> at org.apache.hadoop.ipc.Client.call(Client.java:1399) >>> at >>> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:232) >>> at com.sun.proxy.$Proxy9.getFileInfo(Unknown Source) >>> at >>> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:752) >>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >>> at >>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >>> at >>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >>> at java.lang.reflect.Method.invoke(Method.java:606) >>> at >>> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187) >>> at >>> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) >>> at com.sun.proxy.$Proxy10.getFileInfo(Unknown Source) >>> at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:1988) >>> at >>> org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1118) >>> at >>> org.apache.hadoop.hdfs.DistributedFileSystem$18.doCall(DistributedFileSystem.java:1114) >>> at >>> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) >>> at >>> org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1114) >>> at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:1400) >>> at org.apache.hadoop.tools.DistCp.setTargetPathExists(DistCp.java:188) >>> at org.apache.hadoop.tools.DistCp.run(DistCp.java:111) >>> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) >>> at org.apache.hadoop.tools.DistCp.main(DistCp.java:401) >>> Caused by: com.google.protobuf.InvalidProtocolBufferException: Protocol >>> message end-group tag did not match expected tag. >>> at >>> com.google.protobuf.InvalidProtocolBufferException.invalidEndTag(InvalidProtocolBufferException.java:94) >>> at >>> com.google.protobuf.CodedInputStream.checkLastTagWas(CodedInputStream.java:124) >>> at >>> com.google.protobuf.AbstractParser.parsePartialFrom(AbstractParser.java:202) >>> at >>> com.google.protobuf.AbstractParser.parsePartialDelimitedFrom(AbstractParser.java:241) >>> at >>> com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:253) >>> at >>> com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:259) >>> at >>> com.google.protobuf.AbstractParser.parseDelimitedFrom(AbstractParser.java:49) >>> at >>> org.apache.hadoop.ipc.protobuf.RpcHeaderProtos$RpcResponseHeaderProto.parseDelimitedFrom(RpcHeaderProtos.java:3167) >>> at >>> org.apache.hadoop.ipc.Client$Connection.receiveRpcResponse(Client.java:1072) >>> at org.apache.hadoop.ipc.Client$Connection.run(Client.java:966) >>> Invalid arguments: Failed on local exception: >>> com.google.protobuf.InvalidProtocolBufferException: Protocol message >>> end-group tag did not match expected tag.; Host Details : local host is: >>> "hadoop-coc-1/127.0.1.1"; destination host is: "hadoop-coc-2":50070; >>> usage: distcp OPTIONS [source_path...] <target_path> >>> >>> Thanks, >>> >>> >>> >>> >>> >>> >>> > -- Harsh J
