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https://issues.apache.org/jira/browse/HDFS-1250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suresh Srinivas updated HDFS-1250:
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Attachment: HDFS-1250.patch
The attached patch makes the following changes:
# Currently when an unknown datanode sends blockReport(), namenode rejects it
with an IOException. Same is done when a dead datanode sends block report.
# Currently when an unknown datanode sends blockReceived() request, namenode
rejects it with IllegalArgumentException. I am changing this to IOException, to
be consistent with blockReport(). Same IOException is thrown when a dead
datanode sends blockReceived(), IOException.
# I have added a new test to ensure the following requests are rejected from
dead datanodes:
#* blockReceived()
#* blockReport()
#* sendHeartBeat()
> Namenode accepts block report from dead datanodes
> -------------------------------------------------
>
> Key: HDFS-1250
> URL: https://issues.apache.org/jira/browse/HDFS-1250
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.20.2, 0.22.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
> Attachments: HDFS-1250.patch
>
>
> When a datanode heartbeat times out namenode marks it dead. The subsequent
> heartbeat from the datanode is rejected with a command to datanode to
> re-register. However namenode accepts block report from the datanode although
> it is marked dead.
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