[jira] [Commented] (HDFS-8113) NullPointerException in BlockInfoContiguous causes block report failure

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-8113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14487492#comment-14487492 ] 

Hadoop QA commented on HDFS-8113:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12724205/HDFS-8113.patch
  against trunk revision 6495940.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/10230//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/10230//console

This message is automatically generated.

> 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, 2.7.0
>            Reporter: Chengbing Liu
>            Assignee: Chengbing Liu
>         Attachments: HDFS-8113.patch
>
>
> 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}



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