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https://issues.apache.org/jira/browse/HDFS-4916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zesheng Wu updated HDFS-4916:
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Description: When a new datanode is added to the pipeline, the client
will trigger the block transfer process. In the current implementation, the src
datanode calls the run() method of the DataTransfer to transfer the block, this
method will mask the IOExceptions during the transfering, and will make the
client not realize the failure during the transferring, as a result the client
will mistake the failing transferring as successful one. (was: When a new
datanode is added to the pipeline, the client will trigger the block transfer
process. In the current implementation, the src datanode calls the run() method
of the DataTransfer to transfer the block, this method will mask the
IOExceptions during the transfering, and will make the client not realize the
failure during the transfering.)
Affects Version/s: 2.0.5-alpha
> DataTransfer may mask the IOException during block transfering
> --------------------------------------------------------------
>
> Key: HDFS-4916
> URL: https://issues.apache.org/jira/browse/HDFS-4916
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.0.4-alpha, 2.0.5-alpha
> Reporter: Zesheng Wu
> Priority: Blocker
> Attachments: 4916.v0.patch
>
>
> When a new datanode is added to the pipeline, the client will trigger the
> block transfer process. In the current implementation, the src datanode calls
> the run() method of the DataTransfer to transfer the block, this method will
> mask the IOExceptions during the transfering, and will make the client not
> realize the failure during the transferring, as a result the client will
> mistake the failing transferring as successful one.
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