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https://issues.apache.org/jira/browse/HADOOP-1001?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12485614
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Tahir Hashmi commented on HADOOP-1001:
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Oh yes, reporting the expected and received type names is the right thing to do
:)
Besides trying to print them, is there a better way of reporting some
information about which key/value pair triggered the error? The mapper may have
some conditional code-paths that generate correctly typed pairs some times and
incorrect pairs other times. Knowing which key/value triggered the error could
help locating such code.
> the output of the map is not type checked against the specified types
> ---------------------------------------------------------------------
>
> Key: HADOOP-1001
> URL: https://issues.apache.org/jira/browse/HADOOP-1001
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.11.0
> Reporter: Owen O'Malley
> Assigned To: Tahir Hashmi
> Fix For: 0.13.0
>
> Attachments: 1001.patch, 1001.patch
>
>
> The output of the map is not checked against the types specified in the
> JobConf leading to hard to diagnose bugs.
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