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 A3950200B82 for ; Fri, 2 Sep 2016 01:24:45 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id A000F160ACE; Thu, 1 Sep 2016 23:24:30 +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 E6FEB160AC9 for ; Fri, 2 Sep 2016 01:24:29 +0200 (CEST) Received: (qmail 54133 invoked by uid 500); 1 Sep 2016 23:24:22 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 53897 invoked by uid 99); 1 Sep 2016 23:24:22 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 01 Sep 2016 23:24:22 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 34CD82C1B86 for ; Thu, 1 Sep 2016 23:24:22 +0000 (UTC) Date: Thu, 1 Sep 2016 23:24:22 +0000 (UTC) From: "Manoj Govindassamy (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-9781) FsDatasetImpl#getBlockReports can occasionally throw NullPointerException MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 01 Sep 2016 23:24:45 -0000 [ https://issues.apache.org/jira/browse/HDFS-9781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Manoj Govindassamy updated HDFS-9781: ------------------------------------- Status: Patch Available (was: Open) > FsDatasetImpl#getBlockReports can occasionally throw NullPointerException > ------------------------------------------------------------------------- > > Key: HDFS-9781 > URL: https://issues.apache.org/jira/browse/HDFS-9781 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode > Affects Versions: 3.0.0-alpha1 > Environment: Jenkins > Reporter: Wei-Chiu Chuang > Assignee: Manoj Govindassamy > Attachments: HDFS-9781.002.patch, HDFS-9781.01.patch > > > FsDatasetImpl#getBlockReports occasionally throws NPE. The NPE caused TestFsDatasetImpl#testRemoveVolumeBeingWritten to time out, because the test waits for the call to FsDatasetImpl#getBlockReports to complete without exceptions. > Additionally, the test should be updated to identify an expected exception, using {{GenericTestUtils.assertExceptionContains()}} > {noformat} > Exception in thread "Thread-20" java.lang.NullPointerException > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.getBlockReports(FsDatasetImpl.java:1709) > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl$1BlockReportThread.run(TestFsDatasetImpl.java:587) > 2016-02-08 15:47:30,379 [Thread-21] WARN impl.TestFsDatasetImpl (TestFsDatasetImpl.java:run(606)) - Exception caught. This should not affect the test > java.io.IOException: Failed to move meta file for ReplicaBeingWritten, blk_0_0, RBW > getNumBytes() = 0 > getBytesOnDisk() = 0 > getVisibleLength()= 0 > getVolume() = /home/weichiu/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/Nmi6rYndvr/data0/current > getBlockFile() = /home/weichiu/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/Nmi6rYndvr/data0/current/bpid-0/current/rbw/blk_0 > bytesAcked=0 > bytesOnDisk=0 from /home/weichiu/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/Nmi6rYndvr/data0/current/bpid-0/current/rbw/blk_0_0.meta to /home/weichiu/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/Nmi6rYndvr/data0/current/bpid-0/current/finalized/subdir0/subdir0/blk_0_0.meta > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.moveBlockFiles(FsDatasetImpl.java:857) > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.BlockPoolSlice.addFinalizedBlock(BlockPoolSlice.java:295) > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeImpl.addFinalizedBlock(FsVolumeImpl.java:819) > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.finalizeReplica(FsDatasetImpl.java:1620) > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.finalizeBlock(FsDatasetImpl.java:1601) > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl$1ResponderThread.run(TestFsDatasetImpl.java:603) > Caused by: java.io.IOException: renameTo(src=/home/weichiu/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/Nmi6rYndvr/data0/current/bpid-0/current/rbw/blk_0_0.meta, dst=/home/weichiu/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/Nmi6rYndvr/data0/current/bpid-0/current/finalized/subdir0/subdir0/blk_0_0.meta) failed. > at org.apache.hadoop.io.nativeio.NativeIO.renameTo(NativeIO.java:873) > at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.moveBlockFiles(FsDatasetImpl.java:855) > ... 5 more > 2016-02-08 15:47:34,381 [Thread-19] INFO impl.FsDatasetImpl (FsVolumeList.java:waitVolumeRemoved(287)) - Volume reference is released. > 2016-02-08 15:47:34,384 [Thread-19] INFO impl.TestFsDatasetImpl (TestFsDatasetImpl.java:testRemoveVolumeBeingWritten(622)) - Volumes removed > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: hdfs-issues-help@hadoop.apache.org