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https://issues.apache.org/jira/browse/PIG-1518?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yan Zhou updated PIG-1518:
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Attachment: PIG-1518.patch
The add method if PigSplit is removed. The debug code is left to facilitate
future debugging work. The use of initNextRecordReader is pretty cloned from
org.apache.hadoop.mapreduce.lib.input.CombineFileRecordReader and I'll leave it
as is too.
> multi file input format for loaders
> -----------------------------------
>
> Key: PIG-1518
> URL: https://issues.apache.org/jira/browse/PIG-1518
> Project: Pig
> Issue Type: Improvement
> Reporter: Olga Natkovich
> Assignee: Yan Zhou
> Fix For: 0.8.0
>
> Attachments: PIG-1518.patch, PIG-1518.patch, PIG-1518.patch
>
>
> We frequently run in the situation where Pig needs to deal with small files
> in the input. In this case a separate map is created for each file which
> could be very inefficient.
> It would be greate to have an umbrella input format that can take multiple
> files and use them in a single split. We would like to see this working with
> different data formats if possible.
> There are already a couple of input formats doing similar thing:
> MultifileInputFormat as well as CombinedInputFormat; howevere, neither works
> with ne Hadoop 20 API.
> We at least want to do a feasibility study for Pig 0.8.0.
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