Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 014B91018D for ; Tue, 19 Nov 2013 07:49:24 +0000 (UTC) Received: (qmail 76680 invoked by uid 500); 19 Nov 2013 07:49:22 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 76627 invoked by uid 500); 19 Nov 2013 07:49:22 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 76265 invoked by uid 99); 19 Nov 2013 07:49:21 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 19 Nov 2013 07:49:21 +0000 Date: Tue, 19 Nov 2013 07:49:21 +0000 (UTC) From: "Binglin Chang (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (HDFS-5528) NPE in instantiating MiniDFSCluster MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HDFS-5528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Binglin Chang resolved HDFS-5528. --------------------------------- Resolution: Duplicate > NPE in instantiating MiniDFSCluster > ----------------------------------- > > Key: HDFS-5528 > URL: https://issues.apache.org/jira/browse/HDFS-5528 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 3.0.0 > Reporter: Junping Du > Assignee: Binglin Chang > > In running some tests, i.e. TestUnderReplicatedBlocks, the test can pass successfully, but some NPE exception is thrown out in RPC server side, like following: > 2013-11-15 01:59:16,553 ERROR lib.MethodMetric (MethodMetric.java:snapshot(116)) - Error invoking method numOpenConnections > java.lang.reflect.InvocationTargetException > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at org.apache.hadoop.metrics2.lib.MethodMetric$2.snapshot(MethodMetric.java:110) > at org.apache.hadoop.metrics2.lib.MethodMetric.snapshot(MethodMetric.java:141) > at org.apache.hadoop.metrics2.lib.MetricsRegistry.snapshot(MetricsRegistry.java:387) > at org.apache.hadoop.metrics2.lib.MetricsSourceBuilder$1.getMetrics(MetricsSourceBuilder.java:88) > at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMetrics(MetricsSourceAdapter.java:194) > at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.updateJmxCache(MetricsSourceAdapter.java:171) > at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMBeanInfo(MetricsSourceAdapter.java:150) > at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getNewMBeanClassName(DefaultMBeanServerInterceptor.java:321) > at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:307) > at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:482) > at org.apache.hadoop.metrics2.util.MBeans.register(MBeans.java:58) > at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.startMBeans(MetricsSourceAdapter.java:219) > at org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.start(MetricsSourceAdapter.java:95) > at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.registerSource(MetricsSystemImpl.java:242) > at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:222) > at org.apache.hadoop.ipc.metrics.RpcMetrics.create(RpcMetrics.java:57) > at org.apache.hadoop.ipc.Server.(Server.java:2112) > at org.apache.hadoop.ipc.RPC$Server.(RPC.java:901) > at org.apache.hadoop.ipc.ProtobufRpcEngine$Server.(ProtobufRpcEngine.java:505) > at org.apache.hadoop.ipc.ProtobufRpcEngine.getServer(ProtobufRpcEngine.java:480) > at org.apache.hadoop.ipc.RPC$Builder.build(RPC.java:746) > at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.(NameNodeRpcServer.java:279) > at org.apache.hadoop.hdfs.server.namenode.NameNode.createRpcServer(NameNode.java:512) > at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:492) > at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:688) > at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:673) > at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1267) > at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNode(MiniDFSCluster.java:900) > at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:791) > at org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:649) > at org.apache.hadoop.hdfs.MiniDFSCluster.(MiniDFSCluster.java:339) > at org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:320) > at org.apache.hadoop.hdfs.server.blockmanagement.TestUnderReplicatedBlocks.testSetrepIncWithUnderReplicatedBlocks(TestUnderReplicatedBlocks.java:40) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45) > at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) > at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42) > at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) > at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:62) > Caused by: java.lang.NullPointerException > at org.apache.hadoop.ipc.Server.getNumOpenConnections(Server.java:2434) > at org.apache.hadoop.ipc.metrics.RpcMetrics.numOpenConnections(RpcMetrics.java:74) > ... 46 more -- This message was sent by Atlassian JIRA (v6.1#6144)