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https://issues.apache.org/jira/browse/NUTCH-392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12508816
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Andrzej Bialecki commented on NUTCH-392:
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Re: Content versioning - we can use negative int values as version numbers. I'm
still not sure what is the impact of BLOCK compression on MapFile random access.
Regarding the sizes: parse_text_record size is larger, because for small chunks
of data the compression overhead may far outweigh the compression gains. Re:
the large size of crawl_parse - is this related to your patch? It could be
simply related to the fact that there are many outlinks in those pages ... Or
is crawl_parse using BLOCK compression too?
> OutputFormat implementations should pass on Progressable
> --------------------------------------------------------
>
> Key: NUTCH-392
> URL: https://issues.apache.org/jira/browse/NUTCH-392
> Project: Nutch
> Issue Type: New Feature
> Components: fetcher
> Reporter: Doug Cutting
> Assignee: Andrzej Bialecki
> Fix For: 1.0.0
>
> Attachments: NUTCH-392.patch
>
>
> OutputFormat implementations should pass the Progressable they are passed to
> underlying SequenceFile implementations. This will keep reduce tasks from
> timing out when block writes are slow. This issue depends on
> http://issues.apache.org/jira/browse/HADOOP-636.
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