报错：Exception: org.apache.sqoop.common.SqoopException Message: DRIVER_0002:Given job is already running - Job with id 1

报错背景：

创建完成job之后，执行job的时候报错。

报错现象：

Exception: org.apache.sqoop.common.SqoopException Message: CLIENT_0001:Server has returned exception
Stack trace:
     at  org.apache.sqoop.client.request.ResourceRequest (ResourceRequest.java:)
     at  org.apache.sqoop.client.request.ResourceRequest (ResourceRequest.java:)
     at  org.apache.sqoop.client.request.JobResourceRequest (JobResourceRequest.java:)
     at  org.apache.sqoop.client.request.SqoopResourceRequests (SqoopResourceRequests.java:)
     at  org.apache.sqoop.client.SqoopClient (SqoopClient.java:)
     at  org.apache.sqoop.shell.StartJobFunction (StartJobFunction.java:)
     at  org.apache.sqoop.shell.SqoopFunction (SqoopFunction.java:)
     at  org.apache.sqoop.shell.SqoopCommand (SqoopCommand.java:)
     at  org.apache.sqoop.shell.SqoopCommand (SqoopCommand.java:)
     at  org.codehaus.groovy.tools.shell.Command$execute (null:-)
     at  org.codehaus.groovy.runtime.callsite.CallSiteArray (CallSiteArray.java:)
     at  org.codehaus.groovy.tools.shell.Command$execute (null:-)
     at  org.codehaus.groovy.tools.shell.Shell (Shell.groovy:)
     at  org.codehaus.groovy.tools.shell.Groovysh (Groovysh.groovy:-)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:-)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:)
     at  sun.reflect.DelegatingMethodAccessorImpl (DelegatingMethodAccessorImpl.java:)
     at  java.lang.reflect.Method (Method.java:)
     at  org.codehaus.groovy.reflection.CachedMethod (CachedMethod.java:)
     at  groovy.lang.MetaMethod (MetaMethod.java:)
     at  groovy.lang.MetaClassImpl (MetaClassImpl.java:)
     at  org.codehaus.groovy.runtime.ScriptBytecodeAdapter (ScriptBytecodeAdapter.java:)
     at  org.codehaus.groovy.tools.shell.Groovysh (Groovysh.groovy:)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:-)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:)
     at  sun.reflect.DelegatingMethodAccessorImpl (DelegatingMethodAccessorImpl.java:)
     at  java.lang.reflect.Method (Method.java:)
     at  org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce (PogoMetaMethodSite.java:)
     at  org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite (PogoMetaMethodSite.java:)
     at  org.codehaus.groovy.runtime.callsite.AbstractCallSite (AbstractCallSite.java:)
     at  org.codehaus.groovy.tools.shell.Groovysh (Groovysh.groovy:)
     at  org.codehaus.groovy.tools.shell.Shell (Shell.groovy:)
     at  org.codehaus.groovy.tools.shell.Shell$leftShift$ (null:-)
     at  org.codehaus.groovy.tools.shell.ShellRunner (ShellRunner.groovy:)
     at  org.codehaus.groovy.tools.shell.InteractiveShellRunner (InteractiveShellRunner.groovy:-)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:-)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:)
     at  sun.reflect.DelegatingMethodAccessorImpl (DelegatingMethodAccessorImpl.java:)
     at  java.lang.reflect.Method (Method.java:)
     at  org.codehaus.groovy.reflection.CachedMethod (CachedMethod.java:)
     at  groovy.lang.MetaMethod (MetaMethod.java:)
     at  groovy.lang.MetaClassImpl (MetaClassImpl.java:)
     at  org.codehaus.groovy.runtime.ScriptBytecodeAdapter (ScriptBytecodeAdapter.java:)
     at  org.codehaus.groovy.runtime.ScriptBytecodeAdapter (ScriptBytecodeAdapter.java:)
     at  org.codehaus.groovy.tools.shell.InteractiveShellRunner (InteractiveShellRunner.groovy:)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:-)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:)
     at  sun.reflect.DelegatingMethodAccessorImpl (DelegatingMethodAccessorImpl.java:)
     at  java.lang.reflect.Method (Method.java:)
     at  org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce (PogoMetaMethodSite.java:)
     at  org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite (PogoMetaMethodSite.java:)
     at  org.codehaus.groovy.runtime.callsite.AbstractCallSite (AbstractCallSite.java:)
     at  org.codehaus.groovy.tools.shell.ShellRunner (ShellRunner.groovy:)
     at  org.codehaus.groovy.tools.shell.InteractiveShellRunner (InteractiveShellRunner.groovy:-)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:-)
     at  sun.reflect.NativeMethodAccessorImpl (NativeMethodAccessorImpl.java:)
     at  sun.reflect.DelegatingMethodAccessorImpl (DelegatingMethodAccessorImpl.java:)
     at  java.lang.reflect.Method (Method.java:)
     at  org.codehaus.groovy.reflection.CachedMethod (CachedMethod.java:)
     at  groovy.lang.MetaMethod (MetaMethod.java:)
     at  groovy.lang.MetaClassImpl (MetaClassImpl.java:)
     at  org.codehaus.groovy.runtime.ScriptBytecodeAdapter (ScriptBytecodeAdapter.java:)
     at  org.codehaus.groovy.runtime.ScriptBytecodeAdapter (ScriptBytecodeAdapter.java:)
     at  org.codehaus.groovy.tools.shell.InteractiveShellRunner (InteractiveShellRunner.groovy:)
     at  java_lang_Runnable$run (null:-)
     at  org.codehaus.groovy.runtime.callsite.CallSiteArray (CallSiteArray.java:)
     at  org.codehaus.groovy.runtime.callsite.AbstractCallSite (AbstractCallSite.java:)
     at  org.codehaus.groovy.runtime.callsite.AbstractCallSite (AbstractCallSite.java:)
     at  org.codehaus.groovy.tools.shell.Groovysh (Groovysh.groovy:)
     at  org.codehaus.groovy.tools.shell.Groovysh (Groovysh.groovy:)
     at  org.apache.sqoop.shell.SqoopShell (SqoopShell.java:)
Caused by: Exception: org.apache.sqoop.common.SqoopException Message: DRIVER_0002:Given job is already running - Job with id 1
Stack trace:
     at  org.apache.sqoop.driver.JobManager (JobManager.java:)
     at  org.apache.sqoop.handler.JobRequestHandler (JobRequestHandler.java:)
     at  org.apache.sqoop.handler.JobRequestHandler (JobRequestHandler.java:)
     at  org.apache.sqoop.server.v1.JobServlet (JobServlet.java:)
     at  org.apache.sqoop.server.SqoopProtocolServlet (SqoopProtocolServlet.java:)
     at  javax.servlet.http.HttpServlet (HttpServlet.java:)
     at  javax.servlet.http.HttpServlet (HttpServlet.java:)
     at  org.apache.catalina.core.ApplicationFilterChain (ApplicationFilterChain.java:)
     at  org.apache.catalina.core.ApplicationFilterChain (ApplicationFilterChain.java:)
     at  org.apache.hadoop.security.authentication.server.AuthenticationFilter (AuthenticationFilter.java:)
     at  org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationFilter (DelegationTokenAuthenticationFilter.java:)
     at  org.apache.hadoop.security.authentication.server.AuthenticationFilter (AuthenticationFilter.java:)
     at  org.apache.catalina.core.ApplicationFilterChain (ApplicationFilterChain.java:)
     at  org.apache.catalina.core.ApplicationFilterChain (ApplicationFilterChain.java:)
     at  org.apache.catalina.core.StandardWrapperValve (StandardWrapperValve.java:)
     at  org.apache.catalina.core.StandardContextValve (StandardContextValve.java:)
     at  org.apache.catalina.core.StandardHostValve (StandardHostValve.java:)
     at  org.apache.catalina.valves.ErrorReportValve (ErrorReportValve.java:)
     at  org.apache.catalina.core.StandardEngineValve (StandardEngineValve.java:)
     at  org.apache.catalina.connector.CoyoteAdapter (CoyoteAdapter.java:)
     at  org.apache.coyote.http11.Http11Processor (Http11Processor.java:)
     at  org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler (Http11Protocol.java:)
     at  org.apache.tomcat.util.net.JIoEndpoint$Worker (JIoEndpoint.java:)
     at  java.lang.Thread (Thread.java:)
sqoop:> 

报错原因：

日志中的提示信息说明，此时已经有一个job正在运行，所以报错。

报错解决：

查看这个job的状态：sqoop:000> status job --jid 1

结束这个job的进程：sqoop:000> stop job --jid 1

再次重新启动job：　sqoop:000> start job --jid 1

不再报错。