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From Alparslan Avcı (JIRA) <j...@apache.org>
Subject [jira] [Updated] (NUTCH-1674) Use batchId filter to enable scan (GORA-119) for Fetch,Parse,Update,Index
Date Tue, 24 Dec 2013 15:25:53 GMT

     [ https://issues.apache.org/jira/browse/NUTCH-1674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alparslan Avcı updated NUTCH-1674:
----------------------------------

    Attachment: NUTCH-1674_3.patch

> Use batchId filter to enable scan (GORA-119) for Fetch,Parse,Update,Index
> -------------------------------------------------------------------------
>
>                 Key: NUTCH-1674
>                 URL: https://issues.apache.org/jira/browse/NUTCH-1674
>             Project: Nutch
>          Issue Type: Improvement
>    Affects Versions: 2.3
>            Reporter: Nguyen Manh Tien
>             Fix For: 2.3
>
>         Attachments: NUTCH-1674.patch, NUTCH-1674_2.patch, NUTCH-1674_3.patch
>
>
> Nutch always scan the whole crawldb in each phrase (generate, fetch, parse, update, index).
When crawldb is big, the time to scan is bigger than the actual processing time.
> We really need to skip records while scanning using GORA-119 for example we can only
get records belong to a specified batchId.
> In my crawl the filter reduce the time to scan from 90 min to 30 min.



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