[
https://issues.apache.org/jira/browse/SOLR-1850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12850367#action_12850367
]
Yonik Seeley commented on SOLR-1850:
------------------------------------
Thanks for catching this John, copying the whole set each time is bad enough,
I'd be tempted to classify it as a bug.
> KeepWordFilter can be slow at query time if wordlist is large
> -------------------------------------------------------------
>
> Key: SOLR-1850
> URL: https://issues.apache.org/jira/browse/SOLR-1850
> Project: Solr
> Issue Type: Improvement
> Components: Schema and Analysis
> Affects Versions: 1.4
> Reporter: John Wang
>
> In the case when "Set<String> words" is large, constructing a KeepWordFilter
> at query time is very costly because of the construction (copy) of the set,
> e.g.:
> this.words = new CharArraySet(words, ignoreCase);
> This call does an addAll on the set, and is done for each query, and is the
> same work.
> Suggestion: overload the constructor and expose the CharArraySet, e.g.:
> public KeepWordFilter(TokenStream in, CharArraySet words ) {
> super(in);
> this.words = words;
> this.termAtt = (TermAttribute)addAttribute(TermAttribute.class);
> }
> This allows the ability to have CharArraySet to be constructed once staticly
> for the application instead at query time.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
