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https://issues.apache.org/jira/browse/HADOOP-106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Owen O'Malley resolved HADOOP-106.
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Resolution: Won't Fix
I agree with Eric. This is backwards. You want the sequence file to pad out to
block boundaries.
> Data blocks should be record-oriented.
> --------------------------------------
>
> Key: HADOOP-106
> URL: https://issues.apache.org/jira/browse/HADOOP-106
> Project: Hadoop
> Issue Type: Wish
> Components: dfs
> Affects Versions: 0.2.0
> Reporter: Andrzej Bialecki
> Assignee: Sameer Paranjpye
>
> If data blocks were starting and ending on data record boundaries, and not in
> random places within a file, it would give some important advantages:
> * it would be possible to avoid "fishing" for the beginning of first record
> in a split (see SequenceFile.Reader.sync()).
> * it would make recovering from DFS errors much more successful and easier -
> in most cases missing blocks could be just skipped and the remaining parts
> combined together.
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