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MapReduce >> mail # user >> Yarn Writing ApplicationMaster, Client Exception "URISyntaxException: Expected scheme name at index 0"


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Yarn Writing ApplicationMaster, Client Exception "URISyntaxException: Expected scheme name at index 0"
Hi

I am trying to create my own Application Master. I have followed this
tutorial
http://hadoop.apache.org/docs/r2.0.2-alpha/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html<http://hadoop.apache.org/docs/r2.0.2-alpha/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html#Writing_a_simple_Client>
However
I have problem with reading AM jar as resource at the container. Code for
passing AM.jar

Path jarPath = new Path("/Working_HDFS_DIR/"+ appId +"/"+AM_JAR);
fs.copyFromLocalFile(new Path("/local/src/AM.jar"), jarPath); // VALIDATED
jar is in HDFS under correct PATH
FileStatus jarStatus = fs.getFileStatus(jarPath);
LocalResource amJarRsrc = Records.newRecord(LocalResource.class);
amJarRsrc.setType(LocalResourceType.FILE);
amJarRsrc.setVisibility(LocalResourceVisibility.APPLICATION);
amJarRsrc.setResource(ConverterUtils.getYarnUrlFromPath(jarPath));
amJarRsrc.setTimestamp(jarStatus.getModificationTime());
amJarRsrc.setSize(jarStatus.getLen());
localResources.put("AppMaster.jar",  amJarRsrc);
amContainer.setLocalResources(localResources);

Error logs (nodeManager.log)

INFO
org.apache.hadoop.yarn.server.nodemanager.containermanager.application.Application:
Application application_1364219323374_0016 transitioned from INITING to
RUNNING
INFO
org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container:
Got exception parsing AppMaster.jar and value resource {, port: -1, file:
"/Working_HDFS_DIR/application_1364219323374_0016/AM.jar", }, size: 13940,
timestamp: 1364230436600, type: FILE, visibility: APPLICATION,
2013-03-25 17:53:57,391 WARN
org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container:
Failed to parse resource-request
java.net.URISyntaxException: Expected scheme name at index 0:
:///Working_HDFS_DIR/application_1364219323374_0016/AM.jar
at java.net.URI$Parser.fail(URI.java:2810)
at java.net.URI$Parser.failExpecting(URI.java:2816)
at java.net.URI$Parser.parse(URI.java:3008)
at java.net.URI.<init>(URI.java:735)
at
org.apache.hadoop.yarn.util.ConverterUtils.getPathFromYarnURL(ConverterUtils.java:70)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.LocalResourceRequest.<init>(LocalResourceRequest.java:46)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl$RequestResourcesTransition.transition(ContainerImpl.java:501)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl$RequestResourcesTransition.transition(ContainerImpl.java:472)
at
org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:382)
at
org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:299)
at
org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:43)
at
org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:445)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl.handle(ContainerImpl.java:828)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.container.ContainerImpl.handle(ContainerImpl.java:71)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl$ContainerEventDispatcher.handle(ContainerManagerImpl.java:556)
at
org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl$ContainerEventDispatcher.handle(ContainerManagerImpl.java:549)
at
org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:130)
at
org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:77)
at java.lang.Thread.run(Thread.java:662)

Where am I making the mistake?

regards
tmp