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https://issues.apache.org/jira/browse/HDFS-4288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13565915#comment-13565915
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Hudson commented on HDFS-4288:
------------------------------
Integrated in Hadoop-trunk-Commit #3295 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/3295/])
HDFS-4288. NN accepts incremental BR as IBR in safemode. contributed by
Daryn Sharp. (Revision 1440192)
Result = SUCCESS
kihwal : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1440192
Files :
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockInfo.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeDescriptor.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeManager.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
> NN accepts incremental BR as IBR in safemode
> --------------------------------------------
>
> Key: HDFS-4288
> URL: https://issues.apache.org/jira/browse/HDFS-4288
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Attachments: HDFS-4288.branch-23.patch, HDFS-4288.branch-23.patch,
> HDFS-4288.patch, HDFS-4288.patch
>
>
> If a DN is ready to send an incremental BR and the NN goes down, the DN will
> repeatedly try to reconnect. The NN will then process the DN's incremental
> BR as an initial BR. The NN now thinks the DN has only a few blocks, and
> will ignore all subsequent BRs from that DN until out of safemode -- which it
> may never do because of all the "missing" blocks on the affected DNs.
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