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From Runping Qi <runping...@gmail.com>
Subject Namenode warnings
Date Tue, 11 May 2010 16:53:13 GMT
Hi,

I saw a lot of  warnings like the following in namenode log:

2010-05-11 06:45:07,186 WARN /: /listPaths/xxxxxxxxxxxxs:
java.lang.NullPointerException
	at org.apache.hadoop.hdfs.server.namenode.ListPathsServlet.doGet(ListPathsServlet.java:153)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:596)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:427)
	at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:475)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
	at org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
	at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:635)
	at org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
	at org.mortbay.http.HttpServer.service(HttpServer.java:954)
	at org.mortbay.http.HttpConnection.service(HttpConnection.java:814)
	at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:981)
	at org.mortbay.http.HttpConnection.handle(HttpConnection.java:831)
	at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
	at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)

I am using Hadoop 0.19.

Anybody knows what might be the problem?

Thanks,

Runping

	at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

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