我在Cygwin的Windows机器上运行（或显然尝试）Hadoop 1.2.1。 不幸的是，我的Hadoop出现了严重的问题。 当我试图在本地模式下执行简单的Pig脚本时，出现以下错误。
Backend error message during job submission ------------------------------------------- java.io.IOException: Failed to set permissions of path: \tmp\hadoop-antonbelev\mapred\staging\antonbelev1696923409\.staging to 0700 at org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:691) at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:664) at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:514) at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:349) at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:193) at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:126) at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:942) at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190) at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936) at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:910) at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:378) at org.apache.hadoop.mapred.jobcontrol.JobControl.startReadyJobs(JobControl.java:247) 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:601) at org.apache.pig.backend.hadoop20.PigJobControl.mainLoopAction(PigJobControl.java:157) at org.apache.pig.backend.hadoop20.PigJobControl.run(PigJobControl.java:134) at java.lang.Thread.run(Thread.java:722) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher$1.run(MapReduceLauncher.java:270) Pig Stack Trace --------------- ERROR 2244: Job failed, hadoop does not return any error message org.apache.pig.backend.executionengine.ExecException: ERROR 2244: Job failed, hadoop does not return any error message at org.apache.pig.tools.grunt.GruntParser.executeBatch(GruntParser.java:148) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:202) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:173) at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:84) at org.apache.pig.Main.run(Main.java:607) at org.apache.pig.Main.main(Main.java:156) 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:601) at org.apache.hadoop.util.RunJar.main(RunJar.java:160) 我假设hadoop安装或configuration文件有问题，但我是Hadoop的新手，所以只是一个假设。 有人可以帮我解决这个问题。 谢谢！ ：）
PS另外为什么\tmp\hadoop-antonbelev\mapred\staging\antonbelev1696923409\.staging to 0700使用的是windows反斜杠？ 我试图find这个文件，但它不存在。
更新 ：
在这里我的configuration文件：
核心-site.xml中：
<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <!-- Put site-specific property overrides in this file. --> <configuration> <property> <name>fs.default.name</name> <value>localhost:9100</value> </property> </configuration>
HDFS-site.xml中：
<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <!-- Put site-specific property overrides in this file. --> <configuration> <property> <name>dfs.replication</name> <value>1</value> </property> </configuration>
mapred-site.xml中：
<?xml version="1.0"?> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> <!-- Put site-specific property overrides in this file. --> <configuration> <property> <name>mapred.job.tracker</name> <value>localhost:9101</value> </property> </configuration>
hadoop-env.sh：
# Set Hadoop-specific environment variables here. # The only required environment variable is JAVA_HOME. All others are # optional. When running a distributed configuration it is best to # set JAVA_HOME in this file, so that it is correctly defined on # remote nodes. # The java implementation to use. Required. export JAVA_HOME="C:/Program Files/Java/jdk1.7.0_07" # Extra Java CLASSPATH elements. Optional. # export HADOOP_CLASSPATH= # The maximum amount of heap to use, in MB. Default is 1000. # export HADOOP_HEAPSIZE=2000 # Extra Java runtime options. Empty by default. # export HADOOP_OPTS=-server # Command specific options appended to HADOOP_OPTS when specified export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS" export HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_SECONDARYNAMENODE_OPTS" export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_DATANODE_OPTS" export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_BALANCER_OPTS" export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_JOBTRACKER_OPTS" # export HADOOP_TASKTRACKER_OPTS= # The following applies to multiple commands (fs, dfs, fsck, distcp etc) # export HADOOP_CLIENT_OPTS # Extra ssh options. Empty by default. # export HADOOP_SSH_OPTS="-o ConnectTimeout=1 -o SendEnv=HADOOP_CONF_DIR" # Where log files are stored. $HADOOP_HOME/logs by default. # export HADOOP_LOG_DIR=${HADOOP_HOME}/logs # File naming remote slave hosts. $HADOOP_HOME/conf/slaves by default. # export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves # host:path where hadoop code should be rsync'd from. Unset by default. # export HADOOP_MASTER=master:/home/$USER/src/hadoop # Seconds to sleep between slave commands. Unset by default. This # can be useful in large clusters, where, eg, slave rsyncs can # otherwise arrive faster than the master can service them. # export HADOOP_SLAVE_SLEEP=0.1 # The directory where pid files are stored. /tmp by default. # NOTE: this should be set to a directory that can only be written to by # the users that are going to run the hadoop daemons. Otherwise there is # the potential for a symlink attack. # export HADOOP_PID_DIR=/var/hadoop/pids # A string representing this instance of hadoop. $USER by default. # export HADOOP_IDENT_STRING=$USER # The scheduling priority for daemon processes. See 'man nice'. # export HADOOP_NICENESS=10
我不确定是否有其他configuration文件是相关的。
尝试更改您用作hadoop tmp文件夹的文件夹的文件权限。 就像是：
sudo chmod a+w /app/hadoop/tmp -R
请像这样在core-site.xml中添加这个条目
<property> <name>hadoop.tmp.dir</name> <value>/tmp/hadoop-${user.name}</value> <description>A base for other temporary directories.</description> </property>
您的配置问题是hadoop正在读取的tmp文件夹在root或/ tmp下。