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Posted to user@hadoop.apache.org by Fadzly Zahari <fa...@digitalroute.com> on 2018/05/01 09:41:06 UTC
Re: Premature EOF and RemoteException
Tried this one "https://stackoverflow.com/questions/36015864/hadoop-be-replicated-to-0-nodes-instead-of-minreplication-1-there-are-1/36310025?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa"
I only have 1 data node since is just for remote testing connection only.
[https://cdn.sstatic.net/Sites/stackoverflow/img/apple-touch-icon@2.png?v=73d79a89bded]<https://stackoverflow.com/questions/36015864/hadoop-be-replicated-to-0-nodes-instead-of-minreplication-1-there-are-1/36310025?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa>
Hadoop: ...be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and no node(s) are excluded in this operation<https://stackoverflow.com/questions/36015864/hadoop-be-replicated-to-0-nodes-instead-of-minreplication-1-there-are-1/36310025?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa>
stackoverflow.com
I'm getting the following error when attempting to write to HDFS as part of my multi-threaded application could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s)
________________________________
From: David Quiroga <qu...@gmail.com>
Sent: Tuesday, May 1, 2018 3:35:47 AM
To: Fadzly Zahari
Cc: user@hadoop.apache.org
Subject: Re: Premature EOF and RemoteException
Which suggestion from stackoverflow was that?
The warning states there aren't enough data nodes "could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation."
How many data nodes should there be on the target? I have heard docker handles networking... in a interesting way... it might not register multiple data node addresses.
minReplication = 1 would require at least two data nodes, one for primary and one for replica.
On Thu, Apr 26, 2018 at 12:29 AM, Fadzly Zahari <fa...@digitalroute.com>> wrote:
Hi,
I created simple app to write parquet file into Hadoop.
I am using hadoop lib version 2.6.0-cdh5.9.2 and Hadoop is hosted in a docker in my pc.
Docker Hadoop:
Version: 2.6.0-cdh5.7.0, rc00978c67b0d3fe9f3b896b5030741bd40bf541a
I am able to run the application successfully when it is connected to localhost docker.
But it throws exception when I tried to connect it to docker hosted in other pc.
Details are as below:
Apr 26 11:03:35: [INFO] DFSClient - Exception in createBlockOutputStream <java.io.EOFException: Premature EOF: no length prefix available>java.io<http://java.io>.EOFException: Premature EOF: no length prefix available
Apr 26 11:03:35: at org.apache.hadoop.hdfs.protocolPB.PBHelper.vintPrefixed(PBHelper.java:2254)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1700)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1619)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:771)
Apr 26 11:03:35:
Apr 26 11:03:35: [WARN] DFSClient - Abandoning BP-1388946040-10.0.0.8-1508802350597:blk_1073742841_2027
Apr 26 11:03:35: [WARN] DFSClient - Excluding datanode DatanodeInfoWithStorage[172.17.0.2:50010<http://172.17.0.2:50010>,DS-cbee6448-2551-4251-b79b-2980ec42eb6d,DISK]
Apr 26 11:03:35: [WARN] DFSClient - DataStreamer Exception <org.apache.hadoop.ipc.RemoteException(java.io<http://java.io>.IOException): File /tmp/yay_avroToParquet/1524711795673_simple_udr_useAvroSchema_SNAPPY.parquet could only
be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
Apr 26 11:03:35: at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:1720)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3440)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:686)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:217)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:506)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
Apr 26 11:03:35: at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
Apr 26 11:03:35: at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
Apr 26 11:03:35: at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2226)
Apr 26 11:03:35: at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2222)
Apr 26 11:03:35: at java.security.AccessController.doPrivileged(Native Method)
Apr 26 11:03:35: at javax.security.auth.Subject.doAs(Subject.java:415)
Apr 26 11:03:35: at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1917)
Apr 26 11:03:35: at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2220)
Apr 26 11:03:35: >org.apache.hadoop.ipc.RemoteException(java.io<http://java.io>.IOException): File /tmp/yay_avroToParquet/1524711795673_simple_udr_useAvroSchema_SNAPPY.parquet could only be replicated to 0 nodes instead of minRe
plication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
Apr 26 11:03:35: at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:1720)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3440)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:686)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:217)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:506)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
Apr 26 11:03:35: at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
Apr 26 11:03:35: at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
Apr 26 11:03:35: at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2226)
Apr 26 11:03:35: at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2222)
Apr 26 11:03:35: at java.security.AccessController.doPrivileged(Native Method)
Apr 26 11:03:35: at javax.security.auth.Subject.doAs(Subject.java:415)
Apr 26 11:03:35: at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1917)
Apr 26 11:03:35: at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2220)
Apr 26 11:03:35:
Apr 26 11:03:35: at org.apache.hadoop.ipc.Client.call(Client.java:1472)
Apr 26 11:03:35: at org.apache.hadoop.ipc.Client.call(Client.java:1409)
Apr 26 11:03:35: at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230)
Apr 26 11:03:35: at com.sun.proxy.$Proxy61.addBlock(Unknown Source)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:413)
Apr 26 11:03:35: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
Apr 26 11:03:35: at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
Apr 26 11:03:35: at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
Apr 26 11:03:35: at java.lang.reflect.Method.invoke(Method.java:498)
Apr 26 11:03:35: at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:256)
Apr 26 11:03:35: at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:104)
Apr 26 11:03:35: at com.sun.proxy.$Proxy62.addBlock(Unknown Source)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1811)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1607)
Apr 26 11:03:35: at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:771)
Apr 26 11:03:35:
Does anyone know how to resolve it since I tried suggestion from stackoverflow as well and still have this error.
Thanks
Fadzly