Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 7089A200BA7 for ; Fri, 21 Oct 2016 13:27:01 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 6F1AF160AE9; Fri, 21 Oct 2016 11:27:01 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id B7328160AE0 for ; Fri, 21 Oct 2016 13:27:00 +0200 (CEST) Received: (qmail 41711 invoked by uid 500); 21 Oct 2016 11:26:59 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 41686 invoked by uid 99); 21 Oct 2016 11:26:59 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 21 Oct 2016 11:26:59 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 30C9C2C0086 for ; Fri, 21 Oct 2016 11:26:59 +0000 (UTC) Date: Fri, 21 Oct 2016 11:26:59 +0000 (UTC) From: "Wei-Chiu Chuang (JIRA)" To: hdfs-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HDFS-11041) Unable to unregister FsDatasetState MBean if if DataNode is shutdown twice MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Fri, 21 Oct 2016 11:27:01 -0000 Wei-Chiu Chuang created HDFS-11041: -------------------------------------- Summary: Unable to unregister FsDatasetState MBean if if DataNode is shutdown twice Key: HDFS-11041 URL: https://issues.apache.org/jira/browse/HDFS-11041 Project: Hadoop HDFS Issue Type: Bug Components: datanode Reporter: Wei-Chiu Chuang Priority: Trivial I saw error message like the following in some tests {noformat} 2016-10-21 04:09:03,900 [main] WARN util.MBeans (MBeans.java:unregister(114)) - Error unregistering Hadoop:service=DataNode,name=FSDatasetState-33cd714c-0b1a-471f-8efe-f431d7d874bc javax.management.InstanceNotFoundException: Hadoop:service=DataNode,name=FSDatasetState-33cd714c-0b1a-471f-8efe-f431d7d874bc at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1095) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(DefaultMBeanServerInterceptor.java:427) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(DefaultMBeanServerInterceptor.java:415) at com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(JmxMBeanServer.java:546) at org.apache.hadoop.metrics2.util.MBeans.unregister(MBeans.java:112) at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.shutdown(FsDatasetImpl.java:2127) at org.apache.hadoop.hdfs.server.datanode.DataNode.shutdown(DataNode.java:2016) at org.apache.hadoop.hdfs.MiniDFSCluster.shutdownDataNodes(MiniDFSCluster.java:1985) at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1962) at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1936) at org.apache.hadoop.hdfs.MiniDFSCluster.shutdown(MiniDFSCluster.java:1929) at org.apache.hadoop.hdfs.TestDatanodeReport.testDatanodeReport(TestDatanodeReport.java:144) {noformat} The test shuts down datanode, and then shutdown cluster, which shuts down the a datanode twice. Resetting the FsDatasetSpi reference in DataNode to null resolves the issue. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org