我想有两个节点上运行我的FreeBSD-Cluster中的MapReduce的工作,但我得到下面的异常
14/08/27 14:23:04 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
14/08/27 14:23:04 INFO Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
14/08/27 14:23:04 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
14/08/27 14:23:04 WARN mapreduce.JobSubmitter: Hadoop command-line option parsing not performed. Implement the Tool interface and execute your application with ToolRunner to remedy this.
14/08/27 14:23:04 WARN mapreduce.JobSubmitter: No job jar file set. User classes may not be found. See Job or Job#setJar(String).
14/08/27 14:23:04 INFO mapreduce.JobSubmitter: Cleaning up the staging area file:/tmp/hadoop-otlam/mapred/staging/otlam968414084/.staging/job_local968414084_0001
Exception in thread "main" java.util.NoSuchElementException
at java.util.StringTokenizer.nextToken(StringTokenizer.java:349)
at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:565)
at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.getPermission(RawLocalFileSystem.java:534)
at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.checkPermissionOfOther(ClientDistributedCacheManager.java:276)
at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.isPublic(ClientDistributedCacheManager.java:240)
at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.determineCacheVisibilities(ClientDistributedCacheManager.java:162)
at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.determineTimestampsAndCacheVisibilities(ClientDistributedCacheManager.java:58)
at org.apache.hadoop.mapreduce.JobSubmitter.copyAndConfigureFiles(JobSubmitter.java:265)
at org.apache.hadoop.mapreduce.JobSubmitter.copyAndConfigureFiles(JobSubmitter.java:301)
at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:389)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1285)
at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1282)
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:1556)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1282)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1303)
...
这发生在我尝试运行job.watForCompletion(true);
在新的MapReduce作业。 该NoSuchElementException异常应该被抛出,因为那里有一个StringTokenizer类和未来没有更多的元素()被调用就可以了。 我接过来一看到源,发现如下codepart在RawLocalFileSystem.java:
/// loads permissions, owner, and group from `ls -ld`
private void loadPermissionInfo() {
IOException e = null;
try {
String output = FileUtil.execCommand(new File(getPath().toUri()),
Shell.getGetPermissionCommand());
StringTokenizer t =
new StringTokenizer(output, Shell.TOKEN_SEPARATOR_REGEX);
//expected format
//-rw------- 1 username groupname ...
String permission = t.nextToken();
据我所看到的Hadoop试图找出一个特定的文件中的一些权限与ls -ld
这要是我在控制台用它完美的作品。 不幸的是我没有带发现的是,该文件,它正在寻找的权限。
Hadoop的版本是2.4.1和HBase的版本是0.98.4,我使用了Java的API。 其他操作,如创建一个表做工精细。 有没有人遇到类似的问题或知道该怎么做?
编辑:我刚刚发现,这是一个公正的Hadoop相关的问题。 制作最简单的MapReduce的工作即使不使用HDFS给了我同样的异常。