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From "Dawid Weiss (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2887) FSTSuggester shouldn't OOM on large inputs
Date Thu, 10 Nov 2011 18:40:52 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147901#comment-13147901
] 

Dawid Weiss commented on SOLR-2887:
-----------------------------------

No problem -- Robert is also in the need of that; nothing motivates more than real users ;)
                
> FSTSuggester shouldn't OOM on large inputs
> ------------------------------------------
>
>                 Key: SOLR-2887
>                 URL: https://issues.apache.org/jira/browse/SOLR-2887
>             Project: Solr
>          Issue Type: Improvement
>          Components: spellchecker
>            Reporter: Dawid Weiss
>            Assignee: Dawid Weiss
>             Fix For: 3.5, 4.0
>
>
> Currently the input to FSTSuggester needs to be re-sorted and this is done in-memory.
Kind of defeats the purpose of the component since everything else is super-efficient but
we don't even get to that part because of OOMs during construction.
> Robert suggested using a spill-to-disk and merge sort on-disk. I suggested creating a
lucene index and then enumerating terms for automaton construction or taking the automaton
directly from the index structure (if it isn't pruned).

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