Hello, I'm trying to get Hadoop running as Windows service, but strange things happen, preventing me from finishing the task. Notice that I can run Hadoop in the usual way, using cygwin over Windows XP.
I took the solution of running Hadoop as a service from https://issues.apache.org/jira/browse/HADOOP-1525. This address contains a bunch of files, and also some instructions about how to execute them: Here are my steps: 1) I downloaded all file attachments from https://issues.apache.org/jira/browse/HADOOP-1525, putting .conf files inside Hadoop's /conf folder, and .bat files inside the /bin directory of Hadoop 2) I also changed the value of the property "wrapper.app.parameter.2", within the namenode-wrapper.conf file, to "-format", because I want everything to be formatted every time I initialize the namenode 3) I downloaded the version 3.2.3 of the Java Service Wrapper (JSW), in it's binary form, for windows 4) then I copied the file wrapper.exe from JSW to Hadoop's /bin folder 5) and also copied some files - wrapper.dll and wrapper.jar - from JSW's /lib folder, to Hadoop's /lib folder This step was also covered: Adding the following line to the wrapper configurations allows df to be found if Cygwin is installed so that the DataNode service can work: # Set PATH so that the df command can be found set.PATH=C:/cygwin/bin;%PATH% Then I executed the InstallService.bat file (one that I downloaded from the issue tracker). And here everything went fine. Three services were created, one for the namenode, another for the datanode, and a third one: the secondary namenode. Here is the problem: when trying to initialize the namenode executing the file namenode.bat, I've got the following message: --------------------------------------------------------------------------------------------------------------------- c:\hadoop-install\hadoop\bin>namenode.bat wrapper | --> Wrapper Started as Console wrapper | Lauching a JVM... jvm 1 | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org jvm 1 | Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved. jvm 1 | jvm 1 | Re-format filesystem in \tmp\hadoop-lucas\dfs\name ? (Y or N) Y wrapper | <-- Wrapper Stopped --------------------------------------------------------------------------------------------------------------------- This occurs idenpendent of the format step, and prevents me from properly starting the namenode. Any help is appreciate! Lucas Nazário
