[ http://issues.apache.org/jira/browse/HADOOP-309?page=comments#action_12416851 ]
Devaraj Das commented on HADOOP-309: ------------------------------------ These were the exact same problems I encountered when I ran the unit tests. I had to define hadoop.log.dir (in the build.xml file) and had to put the "build" directory (which contains the webapps) in the CLASSPATH. > NullPointerException in StatusHttpServer > ---------------------------------------- > > Key: HADOOP-309 > URL: http://issues.apache.org/jira/browse/HADOOP-309 > Project: Hadoop > Type: Bug > Components: mapred, dfs > Versions: 0.3.2 > Reporter: Konstantin Shvachko > Priority: Minor > Fix For: 0.4.0 > > The NullPointerException happens in the constructor of StatusHttpServer > because the System property "hadoop.log.dir" is undefined. > I see it trying to start the Namenode directly without using any scripts. > Exception in thread "main" java.lang.NullPointerException > at org.mortbay.util.Resource.newResource(Resource.java:99) > at > org.mortbay.http.ResourceCache.setResourceBase(ResourceCache.java:140) > at org.mortbay.http.HttpContext.setResourceBase(HttpContext.java:2207) > at > org.apache.hadoop.mapred.StatusHttpServer.<init>(StatusHttpServer.java:66) > at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:172) > at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:97) > at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:88) > at org.apache.hadoop.dfs.NameNode.main(NameNode.java:496) > In general I think the sources should not rely on the system properties and > environment variables defined in hadoop scripts. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
