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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NUTCH-1674) Use batchId filter to enable scan (GORA-119) for Fetch,Parse,Update,Index
Date Sun, 18 May 2014 03:37:17 GMT

    [ https://issues.apache.org/jira/browse/NUTCH-1674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14000973#comment-14000973
] 

Hudson commented on NUTCH-1674:
-------------------------------

FAILURE: Integrated in Nutch-nutchgora #1015 (See [https://builds.apache.org/job/Nutch-nutchgora/1015/])
NUTCH-1674 Use batchId filter to enable scan (GORA-119) for Fetch,Parse,Update,Index (Tien
Nguyen Manh and Alparslan Avc─▒ via jnioche) (jnioche: http://svn.apache.org/viewvc/nutch/branches/2.x/?view=rev&rev=1594813)
* /nutch/branches/2.x/CHANGES.txt
* /nutch/branches/2.x/src/java/org/apache/nutch/crawl/DbUpdateMapper.java
* /nutch/branches/2.x/src/java/org/apache/nutch/crawl/DbUpdaterJob.java
* /nutch/branches/2.x/src/java/org/apache/nutch/fetcher/FetcherJob.java
* /nutch/branches/2.x/src/java/org/apache/nutch/indexer/IndexingJob.java
* /nutch/branches/2.x/src/java/org/apache/nutch/parse/ParserJob.java
* /nutch/branches/2.x/src/java/org/apache/nutch/storage/Mark.java
* /nutch/branches/2.x/src/java/org/apache/nutch/storage/StorageUtils.java


> 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: Tien Nguyen Manh
>             Fix For: 2.3
>
>         Attachments: NUTCH-1674.patch, NUTCH-1674_2.patch, NUTCH-1674_3.patch, NUTCH-1674_final.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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