Return-Path: X-Original-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 221FC173E6 for ; Thu, 9 Apr 2015 11:30:35 +0000 (UTC) Received: (qmail 6670 invoked by uid 500); 9 Apr 2015 11:30:12 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 6544 invoked by uid 500); 9 Apr 2015 11:30:12 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 6528 invoked by uid 99); 9 Apr 2015 11:30:12 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 09 Apr 2015 11:30:12 +0000 Date: Thu, 9 Apr 2015 11:30:12 +0000 (UTC) From: "Chengbing Liu (JIRA)" To: hdfs-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (HDFS-8113) NullPointerException in BlockInfoContiguous causes block report failure MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Chengbing Liu created HDFS-8113: ----------------------------------- Summary: NullPointerException in BlockInfoContiguous causes block report failure Key: HDFS-8113 URL: https://issues.apache.org/jira/browse/HDFS-8113 Project: Hadoop HDFS Issue Type: Bug Components: namenode Affects Versions: 2.6.0 Reporter: Chengbing Liu Assignee: Chengbing Liu The following copy constructor can throw NullPointerException if {{bc}} is null. {code} protected BlockInfoContiguous(BlockInfoContiguous from) { this(from, from.bc.getBlockReplication()); this.bc = from.bc; } {code} We have observed that some DataNodes keeps failing doing block reports with NameNode. The stacktrace is as follows. Though we are not using the latest version, the problem still exists. {quote} 2015-03-08 19:28:13,442 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: RemoteException in offerService org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException): java.lang.NullPointerException at org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo.(BlockInfo.java:80) at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager$BlockToMarkCorrupt.(BlockManager.java:1696) at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.checkReplicaCorrupt(BlockManager.java:2185) at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processReportedBlock(BlockManager.java:2047) at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.reportDiff(BlockManager.java:1950) at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processReport(BlockManager.java:1823) at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.processReport(BlockManager.java:1750) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.blockReport(NameNodeRpcServer.java:1069) at org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.blockReport(DatanodeProtocolServerSideTranslatorPB.java:152) at org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:26382) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:587) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1026) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2013) at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2009) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1623) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2007) {quote} -- This message was sent by Atlassian JIRA (v6.3.4#6332)