java读取hdfs图片_java读取HDFS上的文件报错

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我是靠谱客的博主明亮花瓣，最近开发中收集的这篇文章主要介绍java读取hdfs图片_java读取HDFS上的文件报错，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

Configuration conf = new Configuration();

FileSystem fs = FileSystem.get(URI.create(config.getGdPredPath()),conf);

FSDataInputStream fdis = fs.open(new Path(config.getGdPredPath())); 代码走到这一步就报异常了！

以前运行从来没有报错过，最近把hadoop改成集群了，报错语句如下：

log4j:WARN No appenders could be found for logger (org.apache.hadoop.conf.Configuration).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4 ... onfig for more info.

java.io.FileNotFoundException: File does not exist: /home/hadoop/predResult/RFR/*

at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:71)

at org.apache.hadoop.hdfs.server.namenode.INodeFile.valueOf(INodeFile.java:61)

at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1828)

at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1799)

at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1712)

at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:587)

at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodeProtocolServerSideTranslatorPB.java:365)

at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)

at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:616)

at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:969)

at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2049)

at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2045)

at java.security.AccessController.doPrivileged(Native Method)

at javax.security.auth.Subject.doAs(Subject.java:422)

at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)

at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2043)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

at java.lang.reflect.Constructor.newInstance(Constructor.java:526)

at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:106)

at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:73)

at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1228)

at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1213)

at org.apache.hadoop.hdfs.DFSClient.getLocatedBlocks(DFSClient.java:1201)

at org.apache.hadoop.hdfs.DFSInputStream.fetchLocatedBlocksAndGetLastBlockLength(DFSInputStream.java:306)

at org.apache.hadoop.hdfs.DFSInputStream.openInfo(DFSInputStream.java:272)

at org.apache.hadoop.hdfs.DFSInputStream.(DFSInputStream.java:264)

at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1526)

at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:303)

at org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:299)

at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)

at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:299)

at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:767)

at com.easeye.adtarget.adservice.works.processor.impl.GDPredictionServiceImpl.getPredictionValues(GDPredictionServiceImpl.java:160)

at com.easeye.adtarget.adservice.works.processor.impl.GDPredictionServiceImpl.saveGD2DB(GDPredictionServiceImpl.java:84)

at com.easeye.adtarget.adservice.works.processor.impl.GDPredictionProcessor.proc(GDPredictionProcessor.java:41)

at com.easeye.adtarget.adservice.works.listener.MQMessageListener.onMessage(MQMessageListener.java:34)

at org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1321)

at org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)

at org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)

at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:129)

at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:47)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:745)

Caused by: org.apache.hadoop.ipc.RemoteException(java.io.FileNotFoundException): File does not exist: /home/hadoop/predResult/GD_RFR/*