I ended up pursuing the ParallelWriter
http://issues.apache.org/jira/browse/LUCENE-600 , so we can map different
fields to different indexes. This appears to keep the indexes in sync,
although I still need to do more testing.
However, some ugly hackery was needed to get it to extend SolrIndexWrit
ParallelReader is definitely out there on the Lucene landscape. See http://www.lucidimagination.com/search/page:2?q=ParallelReader
for some background discussion, including Doug's original post on it
and some others view of the use case. The key is that the small index
has to be rebuilt in
Just an update on my own research:
I have discovered the 'ParallelReader' class (subclass of IndexReader) in
lucene, which is designed for searching across multiple indexes.
This appears to suit our needs - and I do not expect will be too difficult
to integrate into Solr.
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