[jira] [Issue Comment Edited] (NUTCH-1037) Deduplicate anchors before indexing

["Markus Jelsma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NUTCH-1037?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13063375#comment-13063375 ] 

Markus Jelsma edited comment on NUTCH-1037 at 7/11/11 2:53 PM:
---------------------------------------------------------------

mmmmm, yes.

It would require changing existing indices for something that is not yet being fully supported out-of-the-box by Solr. A reason for not having used payloads as of yet. If i'm not mistaken it'll encode a byte for each term in the field, not for the group of terms that make up an anchor, so i think that would make things difficult, wouldn't it?

      was (Author: markus17):
    mmmmm, yes.

It would require changing existing indices for something that is not yet being fully supported out-of-the-box by Solr. A reason for not having used payloads as of yet. If i'm not mistaken it'll encode a byte for each term in the field, not for the whole field value so i think that would make things difficult, wouldn't it?
  
> Deduplicate anchors before indexing
> -----------------------------------
>
>                 Key: NUTCH-1037
>                 URL: https://issues.apache.org/jira/browse/NUTCH-1037
>             Project: Nutch
>          Issue Type: Improvement
>            Reporter: Markus Jelsma
>            Assignee: Markus Jelsma
>             Fix For: 1.4, 2.0
>
>         Attachments: NUTCH-1037-1.4-1.patch, NUTCH-1037-2.0-1.patch
>
>
> Anchors are not deduplicated before indexing. This can result in a very high number of similar and identical anchors being indexed. Before indexing, anchors must be deduplicated at least on case.
> Should this be implemented as a fix or as a new feature that needs to be configured?

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