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Subject: Need help: TestCLI hangs while executing within Eclipse env.
To: common-dev@hadoop.apache.org
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 <OFAD7A7E6E.D53B8254-ON87257A8D.00671644-86257A8D.00689331@us.ibm.com>
From: Amir Sanjar <v1sanjar@us.ibm.com>
Date: Thu, 4 Oct 2012 14:02:12 -0500
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Hadoop= hadoop 1.0.3 (build with Oracle JAVA 7)
platform=RHEL 6.2 x86_64


while executing JUnit testcase TestCLI produces serious of
NullPointerException (below) and then it loops in (detail msg at the end)
"  ipc.Client (Client.java:handleConnectionFailure(666)) - Retrying connect
to server: localhost/127.0.0.1:0. Already tried x time(s)."
This behavior is reproducible only within Eclipse environment..
any help would be greatly appreciated .

java.lang.NullPointerException
	at java.lang.Class.isAssignableFrom(Native Method)
	at org.mortbay.jetty.servlet.ServletHolder.doStart
(ServletHolder.java:256)
	at org.mortbay.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:50)
	at org.mortbay.jetty.servlet.ServletHandler.initialize
(ServletHandler.java:736)
	at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
	at org.mortbay.jetty.webapp.WebAppContext.startContext
(WebAppContext.java:1282)
	at org.mortbay.jetty.handler.ContextHandler.doStart
(ContextHandler.java:518)
	at org.mortbay.jetty.webapp.WebAppContext.doStart
(WebAppContext.java:499)
	at org.mortbay.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:50)
	at org.mortbay.jetty.handler.HandlerCollection.doStart
(HandlerCollection.java:152)
	at org.mortbay.jetty.handler.ContextHandlerCollection.doStart
(ContextHandlerCollection.java:156)
	at org.mortbay.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:50)
	at org.mortbay.jetty.handler.HandlerWrapper.doStart
(HandlerWrapper.java:130)
	at org.mortbay.jetty.Server.doStart(Server.java:224)
	at org.mortbay.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:50)
	at org.apache.hadoop.http.HttpServer.start(HttpServer.java:617)
<==================wbServer.start() in httpserver
	at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2341)
	at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2192)
	at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2186)
	at org.apache.hadoop.mapred.JobTracker.startTracker
(JobTracker.java:300)
	at org.apache.hadoop.mapred.MiniMRCluster$JobTrackerRunner$1.run
(MiniMRCluster.java:114)
	at org.apache.hadoop.mapred.MiniMRCluster$JobTrackerRunner$1.run
(MiniMRCluster.java:1)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs
(UserGroupInformation.java:1121)
	at org.apache.hadoop.mapred.MiniMRCluster$JobTrackerRunner.run
(MiniMRCluster.java:112)
	at java.lang.Thread.run(Thread.java:722)


2012-10-04 13:27:22,973 INFO  mapred.MiniMRCluster
(MiniMRCluster.java:<init>(188)) - mapred.local.dir
is /home/sanjar/development/hadoop-common-1.0.3/build/test/mapred/local/0_0
2012-10-04 13:27:22,983 WARN  impl.MetricsSystemImpl
(MetricsSystemImpl.java:registerSource(200)) - Source name ugi already
exists!
2012-10-04 13:27:23,135 INFO  http.HttpServer
(HttpServer.java:addGlobalFilter(411)) - Added global filtersafety
(class=org.apache.hadoop.http.HttpServer$QuotingInputFilter)
2012-10-04 13:27:23,160 INFO  mapred.TaskLogsTruncater
(TaskLogsTruncater.java:<init>(72)) - Initializing logs' truncater with
mapRetainSize=-1 and reduceRetainSize=-1
2012-10-04 13:27:23,175 INFO  mapred.TaskTracker
(TaskTracker.java:initialize(694)) - Starting tasktracker with owner as
sanjar
2012-10-04 13:27:23,176 INFO  mapred.TaskTracker
(TaskTracker.java:initialize(710)) - Good mapred local directories
are: /home/sanjar/development/hadoop-common-1.0.3/build/test/mapred/local/0_0
2012-10-04 13:27:23,181 WARN  util.NativeCodeLoader
(NativeCodeLoader.java:<clinit>(52)) - Unable to load native-hadoop library
for your platform... using builtin-java classes where applicable
2012-10-04 13:27:23,185 WARN  impl.MetricsSystemImpl
(MetricsSystemImpl.java:registerSource(200)) - Source name jvm already
exists!
2012-10-04 13:27:23,187 INFO  impl.MetricsSourceAdapter
(MetricsSourceAdapter.java:start(90)) - MBean for source TaskTrackerMetrics
registered.
2012-10-04 13:27:23,297 INFO  impl.MetricsSourceAdapter
(MetricsSourceAdapter.java:start(90)) - MBean for source
RpcDetailedActivityForPort45314 registered.
2012-10-04 13:27:23,298 INFO  impl.MetricsSourceAdapter
(MetricsSourceAdapter.java:start(90)) - MBean for source
RpcActivityForPort45314 registered.
2012-10-04 13:27:23,299 INFO  ipc.Server (Server.java:run(328)) - Starting
SocketReader
2012-10-04 13:27:23,308 INFO  ipc.Server (Server.java:run(598)) - IPC
Server Responder: starting
2012-10-04 13:27:23,320 INFO  ipc.Server (Server.java:run(1358)) - IPC
Server handler 0 on 45314: starting
2012-10-04 13:27:23,324 INFO  ipc.Server (Server.java:run(1358)) - IPC
Server handler 1 on 45314: starting
2012-10-04 13:27:23,330 INFO  ipc.Server (Server.java:run(1358)) - IPC
Server handler 2 on 45314: starting
2012-10-04 13:27:23,332 INFO  mapred.TaskTracker
(TaskTracker.java:initialize(794)) - TaskTracker up at:
localhost.localdomain/127.0.0.1:45314
2012-10-04 13:27:23,333 INFO  mapred.TaskTracker
(TaskTracker.java:initialize(797)) - Starting tracker
tracker_host0.foo.com:localhost.localdomain/127.0.0.1:45314
2012-10-04 13:27:23,334 INFO  ipc.Server (Server.java:run(434)) - IPC
Server listener on 45314: starting
2012-10-04 13:27:23,340 INFO  ipc.Server (Server.java:run(1358)) - IPC
Server handler 3 on 45314: starting
2012-10-04 13:27:24,392 INFO  ipc.Client
(Client.java:handleConnectionFailure(666)) - Retrying connect to server:
localhost/127.0.0.1:0. Already tried 0 time(s).
2012-10-04 13:27:25,394 INFO  ipc.Client
(Client.java:handleConnectionFailure(666)) - Retrying connect to server:
localhost/127.0.0.1:0. Already tried 1 time(s).
2012-10-04 13:27:26,397 INFO  ipc.Client
(Client.java:handleConnectionFailure(666)) - Retrying connect to server:
localhost/127.0.0.1:0. Already tried 2 time(s).
2012-10-04 13:27:27,398 INFO  ipc.Client
(Client.java:handleConnectionFailure(666)) - Retrying connect to server:
localhost/127.0.0.1:0. Already tried 3 time(s).
2012-10-04 13:27:28,399 INFO  ipc.Client
(Client.java:handleConnectionFailure(666)) - Retrying connect to server:
localhost/127.0.0.1:0. Already tried 4 time(s).
2012-10-04 13:27:29,400 INFO  ipc.Client
(Client.java:handleConnectionFailure(666)) - Retrying connect to server:
localhost/127.0.0.1:0. Already tried 5 time(s).


Best Regards
Amir Sanjar

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