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Posted to dev@nutch.apache.org by "Andrzej Bialecki (JIRA)" <ji...@apache.org> on 2006/07/20 00:33:15 UTC

[jira] Closed: (NUTCH-323) CrawlDatum.set just reference a mapWritable of a other object but not copy it.

     [ http://issues.apache.org/jira/browse/NUTCH-323?page=all ]

Andrzej Bialecki  closed NUTCH-323.
-----------------------------------

    Resolution: Fixed
      Assignee: Andrzej Bialecki 

Patch applied to trunk/ . This should solve some serious issues with CrawlDatum.metaData handling in CrawlDbReducer. Thank you!

> CrawlDatum.set just reference a mapWritable of a other object but not copy it.
> ------------------------------------------------------------------------------
>
>                 Key: NUTCH-323
>                 URL: http://issues.apache.org/jira/browse/NUTCH-323
>             Project: Nutch
>          Issue Type: Bug
>    Affects Versions: 0.8-dev
>            Reporter: Stefan Groschupf
>         Assigned To: Andrzej Bialecki 
>            Priority: Critical
>             Fix For: 0.8-dev
>
>         Attachments: MapWritableCopyConstructor.patch
>
>
> Using CrawlDatum.set(aOtherCrawlDatum) copies the data from one CrawlDatum to a other. 
> Also a reference of the MapWritable is passed. Means both project share the same mapWritable and its content. 
> This causes problems with concurent manipulate mapWritables and its key-value tuples. 

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