我正在运行此命令“hbase org.apache.hadoop.hbase.mapreduce.Driver export'temp'/ dump” 但我得到例外其实我必须导出表并导入不同的数据库。
2016-06-15 17:56:49,365 WARN [main] util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2016-06-15 17:56:49,463 INFO [main] mapreduce.Export: versions=1, starttime=0, endtime=9223372036854775807, keepDeletedCells=false
2016-06-15 17:56:49,745 WARN [main] mapreduce.TableMapReduceUtil: The hbase-prefix-tree module jar containing PrefixTreeCodec is not present. Continuing without it.
2016-06-15 17:56:50,058 INFO [main] Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
2016-06-15 17:56:50,058 INFO [main] jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
2016-06-15 17:56:50,289 INFO [main] mapreduce.JobSubmitter: Cleaning up the staging area file:/app/hadoop/tmp/mapred/staging/abhay1268840199/.staging/job_local1268840199_0001
Exception in thread "main" java.lang.reflect.InvocationTargetException
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.hbase.mapreduce.Driver.main(Driver.java:61)
Caused by: java.io.FileNotFoundException: File does not exist: hdfs://localhost:54310/usr/local/hbase/lib/zookeeper-3.4.6.jar
at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1072)
at org.apache.hadoop.hdfs.DistributedFileSystem$17.doCall(DistributedFileSystem.java:1064)
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1064)
at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.getFileStatus(ClientDistributedCacheManager.java:288)
at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.getFileStatus(ClientDistributedCacheManager.java:224)
at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.determineTimestamps(ClientDistributedCacheManager.java:93)
at org.apache.hadoop.mapreduce.filecache.ClientDistributedCacheManager.determineTimestampsAndCacheVisibilities(ClientDistributedCacheManager.java:57)
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$10.run(Job.java:1282)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:1282)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1303)
at org.apache.hadoop.hbase.mapreduce.Export.main(Export.java:188)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:72)
at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:145)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:153)
... 5 more
答案 0 :(得分：1)
我知道这绝对是常见的环境问题。请先尝试导出classpath，然后尝试运行Export命令
export HADOOP_CLASSPATH=`hadoop classpath`:`hbase classpath`
java -cp "$HADOOP_CLASSPATH/*"
第二个命令java -cp（用于调试目的）将展开类路径中的每个jar文件，以查看此列表中是否存在缺少的jar ...
另一个快速解决方案（不是优选但暂时有点）：将jar hdfs：// localhost：54310 / usr / local / hbase / lib / zookeeper-3.4.6.jar复制到该位置。