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https://issues.apache.org/jira/browse/HBASE-1475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715610#action_12715610
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Jonathan Gray commented on HBASE-1475:
--------------------------------------
I have verified that there is no difference in log output between times when it
blocks for ~25 seconds and times it does not.
> Unit testing from Eclipse, occasional delay on cluster tests from datanode
> webapps errors
> -----------------------------------------------------------------------------------------
>
> Key: HBASE-1475
> URL: https://issues.apache.org/jira/browse/HBASE-1475
> Project: Hadoop HBase
> Issue Type: Bug
> Components: test
> Affects Versions: 0.20.0
> Reporter: Jonathan Gray
> Priority: Minor
>
> This does not happen every time I run a cluster test, but probably 75% of the
> time.
> {noformat}
> 2009-06-02 09:58:32.365::INFO: Logging to STDERR via
> org.mortbay.log.StdErrLog
> 2009-06-02 09:58:32.425::INFO: jetty-6.1.14
> 2009-06-02 09:58:32.454::WARN: Web application not found
> file:/home/jgray/src/hbase-0.20.0-1304/hbase/bin/webapps/hdfs
> 2009-06-02 09:58:32.454::WARN: Failed startup of context
> org.mortbay.jetty.webapp.webappcont...@7ed75415{/,file:/home/jgray/src/hbase-0.20.0-1304/hbase/bin/webapps/hdfs}
> java.io.FileNotFoundException:
> file:/home/jgray/src/hbase-0.20.0-1304/hbase/bin/webapps/hdfs
> at
> org.mortbay.jetty.webapp.WebAppContext.resolveWebApp(WebAppContext.java:959)
> at
> org.mortbay.jetty.webapp.WebAppContext.getWebInf(WebAppContext.java:793)
> at
> org.mortbay.jetty.webapp.WebInfConfiguration.configureClassLoader(WebInfConfiguration.java:62)
> at
> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:456)
> 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:222)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at org.apache.hadoop.http.HttpServer.start(HttpServer.java:453)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:246)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:202)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:279)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:955)
> at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:275)
> at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:119)
> at
> org.apache.hadoop.hbase.HBaseClusterTestCase.setUp(HBaseClusterTestCase.java:122)
> at junit.framework.TestCase.runBare(TestCase.java:125)
> at junit.framework.TestResult$1.protect(TestResult.java:106)
> at junit.framework.TestResult.runProtected(TestResult.java:124)
> at junit.framework.TestResult.run(TestResult.java:109)
> at junit.framework.TestCase.run(TestCase.java:118)
> at junit.framework.TestSuite.runTest(TestSuite.java:208)
> at junit.framework.TestSuite.run(TestSuite.java:203)
> at
> org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
> at
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> 2009-06-02 09:58:32.497::INFO: Started selectchannelconnec...@localhost:34719
> Starting DataNode 0 with dfs.data.dir:
> /home/jgray/src/hbase-0.20.0-1304/hbase/build/hbase/test/dfs/data/data1,/home/jgray/src/hbase-0.20.0-1304/hbase/build/hbase/test/dfs/data/data2
> 2009-06-02 09:58:32.678::INFO: jetty-6.1.14
> 2009-06-02 09:58:32.683::WARN: Web application not found
> file:/home/jgray/src/hbase-0.20.0-1304/hbase/bin/webapps/datanode
> 2009-06-02 09:58:32.683::WARN: Failed startup of context
> org.mortbay.jetty.webapp.webappcont...@6f7cf6b6{/,file:/home/jgray/src/hbase-0.20.0-1304/hbase/bin/webapps/datanode}
> java.io.FileNotFoundException:
> file:/home/jgray/src/hbase-0.20.0-1304/hbase/bin/webapps/datanode
> at
> org.mortbay.jetty.webapp.WebAppContext.resolveWebApp(WebAppContext.java:959)
> at
> org.mortbay.jetty.webapp.WebAppContext.getWebInf(WebAppContext.java:793)
> at
> org.mortbay.jetty.webapp.WebInfConfiguration.configureClassLoader(WebInfConfiguration.java:62)
> at
> org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:456)
> 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:222)
> at
> org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
> at org.apache.hadoop.http.HttpServer.start(HttpServer.java:453)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:375)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:216)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1283)
> at
> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1238)
> at
> org.apache.hadoop.hdfs.MiniDFSCluster.startDataNodes(MiniDFSCluster.java:414)
> at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:278)
> at org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:119)
> at
> org.apache.hadoop.hbase.HBaseClusterTestCase.setUp(HBaseClusterTestCase.java:122)
> at junit.framework.TestCase.runBare(TestCase.java:125)
> at junit.framework.TestResult$1.protect(TestResult.java:106)
> at junit.framework.TestResult.runProtected(TestResult.java:124)
> at junit.framework.TestResult.run(TestResult.java:109)
> at junit.framework.TestCase.run(TestCase.java:118)
> at junit.framework.TestSuite.runTest(TestSuite.java:208)
> at junit.framework.TestSuite.run(TestSuite.java:203)
> at
> org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
> at
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> 2009-06-02 09:58:32.688::INFO: Started selectchannelconnec...@localhost:47838
> {noformat}
> It holds there for about 30 seconds. If I rerun the test, the delay usually
> goes away. Even when there is no delay, I still get this error at the
> beginning of the cluster spin up.
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