Oozie下面有很多例子,提供测试.也可以将源码放入Eclipse中启动提交.这里就一起试下.但发现有些问题,一一解决吧.
运行Oozie例子map-reduce,命令:
$OOZIE_HOME/bin/oozie job -oozie :11000/oozie -config /home/guoyun/Hadoop/oozie-3.0.2/examples/apps/map-reduce/job.properties -run
本以为会很顺利,但控制台报以下错误:
Error: E0902 : E0902: Exception occured: [java.net.ConnectException: Call to localhost/127.0.0.1:8020 failed on connection exception: java.net.ConnectException: Connection refused]
跑到日志中$OOZIE_HOME/logs/oozie.log发现有以下报错:
2011-11-09 10:42:30,721 WARN V1JobsServlet:539 - USER[?] GROUP[users] TOKEN[-] APP[-] JOB[-] ACTION[-] URL[POST :11000/oozie/v1/jobs?action=start] error[E0902], E0902: Exception occured: [java.net.ConnectException: Call to localhost/127.0.0.1:8020 failed on connection exception: java.net.ConnectException: Connection refused]
org.apache.oozie.servlet.XServletException: E0902: Exception occured: [java.net.ConnectException: Call to localhost/127.0.0.1:8020 failed on connection exception: java.net.ConnectException: Connection refused] at org.apache.oozie.servlet.BaseJobServlet.checkAuthorizationForApp(BaseJobServlet.java:196) at org.apache.oozie.servlet.BaseJobsServlet.doPost(BaseJobsServlet.java:89) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at org.apache.oozie.servlet.JsonRestServlet.service(JsonRestServlet.java:281) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:662) Caused by: org.apache.oozie.service.AuthorizationException: E0902: Exception occured: [java.net.ConnectException: Call to localhost/127.0.0.1:8020 failed on connection exception: java.net.ConnectException: Connection refused] at org.apache.oozie.service.AuthorizationService.authorizeForApp(AuthorizationService.java:320) at org.apache.oozie.servlet.BaseJobServlet.checkAuthorizationForApp(BaseJobServlet.java:185) ... 16 more Caused by: org.apache.oozie.service.HadoopAccessorException: E0902: Exception occured: [java.net.ConnectException: Call to localhost/127.0.0.1:8020 failed on connection exception: java.net.ConnectException: Connection refused] at org.apache.oozie.service.KerberosHadoopAccessorService.createFileSystem(KerberosHadoopAccessorService.java:208) at org.apache.oozie.service.AuthorizationService.authorizeForApp(AuthorizationService.java:285) ... 17 more Caused by: java.net.ConnectException: Call to localhost/127.0.0.1:8020 failed on connection exception: java.net.ConnectException: Connection refused at org.apache.hadoop.ipc.Client.wrapException(Client.java:1131) at org.apache.hadoop.ipc.Client.call(Client.java:1107) at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:226) at $Proxy22.getProtocolVersion(Unknown Source) at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:398) at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:384) at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:111) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:213) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:180) at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1514) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:67) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:1548) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1530) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:228) at org.apache.oozie.service.KerberosHadoopAccessorService$3.run(KerberosHadoopAccessorService.java:200) at org.apache.oozie.service.KerberosHadoopAccessorService$3.run(KerberosHadoopAccessorService.java:192) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1115) at org.apache.oozie.service.KerberosHadoopAccessorService.createFileSystem(KerberosHadoopAccessorService.java:192) ... 18 more Caused by: java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:408) at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:425) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:532) at org.apache.hadoop.ipc.Client$Connection.access$2300(Client.java:210) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1244) at org.apache.hadoop.ipc.Client.call(Client.java:1075) ... 37 more