hadoop版本为2.2.0,sqoop-1.99.4-bin-hadoop200,配置完全按照网上的成功教程配置,但是启动之后,运行show version --all指令,报出下面的错误:

sqoop:000> show version --all
client version:
  Sqoop 1.99.4 source revision 2475a76ef70a0660f381c75c3d47d0d24f00b57f
  Compiled by gshapira on Sun Nov 16 02:50:00 PST 2014
Exception has occurred during processing command
Exception: com.sun.jersey.api.client.ClientHandlerException Message: java.net.ConnectException: Connection refused

客户端版本可以显示,但是服务器端就不可以,因而后续操作根本无法进行.查看日志文件 cat /usr/sqoop/server/logs/catalina.out

Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/lib/hadoop], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/lib/hadoop/lib], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/lib/hadoop-hdfs], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/lib/hadoop-hdfs/lib], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/lib/hadoop-mapreduce], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/lib/hadoop-mapreduce/lib], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/lib/hadoop-yarn], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/lib/hadoop-yarn/lib], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/hadoop/share/hadoop/commom], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/hadoop/share/hadoop/commom/lib], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:00 PM org.apache.catalina.startup.ClassLoaderFactory validateFile
WARNING: Problem with directory [/usr/hadoop/share/hadoop/yarn/*jar], exists: [false], isDirectory: [false], canRead: [false]
Mar 24, 2015 3:03:01 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/i386:/lib:/usr/lib
Mar 24, 2015 3:03:02 PM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-12000
Mar 24, 2015 3:03:02 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1234 ms
Mar 24, 2015 3:03:02 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Mar 24, 2015 3:03:02 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.37
Mar 24, 2015 3:03:02 PM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive sqoop.war
2015-03-24 15:03:03,161 INFO  [main] core.SqoopServer (SqoopServer.java:initialize(47)) - Booting up Sqoop server
2015-03-24 15:03:03,172 INFO  [main] core.PropertiesConfigurationProvider (PropertiesConfigurationProvider.java:initialize(96)) - Starting config file poller thread
log4j: Parsing for [root] with value=[WARN, file].
log4j: Level token is [WARN].
log4j: Category root set to WARN
log4j: Parsing appender named "file".
log4j: Parsing layout options for "file".
log4j: Setting property [conversionPattern] to [%d{ISO8601} %-5p %c{2} [%l] %m%n].
log4j: End of parsing for "file".
log4j: Setting property [file] to [@LOGDIR@/sqoop.log].
log4j: Setting property [maxBackupIndex] to [5].
log4j: Setting property [maxFileSize] to [25MB].
log4j: setFile called: @LOGDIR@/sqoop.log, true
log4j: setFile ended
log4j: Parsed "file" options.
log4j: Parsing for [org.apache.sqoop] with value=[DEBUG].
log4j: Level token is [DEBUG].
log4j: Category org.apache.sqoop set to DEBUG
log4j: Handling log4j.additivity.org.apache.sqoop=[null]
log4j: Parsing for [org.apache.derby] with value=[INFO].
log4j: Level token is [INFO].
log4j: Category org.apache.derby set to INFO
log4j: Handling log4j.additivity.org.apache.derby=[null]
log4j: Finished configuring.
log4j: Could not find root logger information. Is this OK?
log4j: Parsing for [default] with value=[INFO,defaultAppender].
log4j: Level token is [INFO].
log4j: Category default set to INFO
log4j: Parsing appender named "defaultAppender".
log4j: Parsing layout options for "defaultAppender".
log4j: Setting property [conversionPattern] to [%d %-5p %c: %m%n].
log4j: End of parsing for "defaultAppender".
log4j: Setting property [file] to [@LOGDIR@/default.audit].
log4j: setFile called: @LOGDIR@/default.audit, true
log4j: setFile ended
log4j: Parsed "defaultAppender" options.
log4j: Handling log4j.additivity.default=[null]
log4j: Finished configuring.
Sqoop failed to load:
java.lang.NoClassDefFoundError: org/apache/hadoop/conf/Configuration
    at org.apache.sqoop.submission.mapreduce.MapreduceSubmissionEngine.initialize(MapreduceSubmissionEngine.java:79)
    at org.apache.sqoop.driver.JobManager.initialize(JobManager.java:223)
    at org.apache.sqoop.core.SqoopServer.initialize(SqoopServer.java:53)
    at org.apache.sqoop.server.ServerInitializer.contextInitialized(ServerInitializer.java:38)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:943)
    at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:778)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:504)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
    at org.apache.catalina.core.StandardService.start(StandardService.java:525)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.conf.Configuration
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
    ... 28 more

不知道有没有遇到过这种问题,怎么解决的,困扰好久了...