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https://issues.apache.org/jira/browse/SOLR-2290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12973990#action_12973990
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Tom Burton-West commented on SOLR-2290:
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Thanks Jason,
I'm still working my way though the Solr codebase and don't yet really
understand the relationship between the lucene classes and the solr classes and
the Solr config process.
I'd like to do the property injection. I'm having trouble conceptualizing what
the entry would be in the solrconfig.xml file
and what the name would be in SolrIndexConfig. How do we distinguish between
the indexReader termInfoIndexDivisor used during search and the indexReader
termInfoIndexDivisor for the indexReader that is used by the indexWriter?
Would it be something like this?
<<indexWriter name="IndexWriter" class="org.apache.solr.update.SolrIndexWriter">
<int name="termInfosIndexDivisor">8</int>
</indexWriter>
Maybe you could point me to the classes I should be looking at?
Tom
> the termsInfosDivisor for readers opened by indexWriter should be
> configurable in Solr
> --------------------------------------------------------------------------------------
>
> Key: SOLR-2290
> URL: https://issues.apache.org/jira/browse/SOLR-2290
> Project: Solr
> Issue Type: New Feature
> Reporter: Tom Burton-West
> Priority: Minor
>
> Solr allows users to set the termInfosIndexDivisor used by the indexReader
> during search time in solrconfig.xml, but not in the indexReader opened by
> the IndexWriter when indexing/merging.
> When dealing with an index with a large number of unique terms, setting the
> termInfosIndexDivisor at search time is helpful in reducing memory use. It
> would also be helpful in reducing memory use during indexing/merging if it
> was made configurable for indexReaders opened by indexWriter during
> indexing/merging.
> This thread contains some background:
> http://www.lucidimagination.com/search/document/b5c756a366e1a0d6/memory_use_during_merges_oom
> In the Lucene 3.x branch it looks like this is done in
> IndexWriterConfig.setReaderTermsIndexDivisor, although there is also this
> method signature in IndexWriter.java: IndexReader getReader(int
> termInfosIndexDivisor)
>
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