Steve Molloy created SOLR-6297:
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Summary: Distributed spellcheck with WordBreakSpellchecker can
lose suggestions
Key: SOLR-6297
URL: https://issues.apache.org/jira/browse/SOLR-6297
Project: Solr
Issue Type: Bug
Affects Versions: 4.9
Reporter: Steve Molloy
When performing a spellcheck request in distributed environment with the
WordBreakSpellChecker configured, the shard response merging logic can lose
some suggestions. Basically, the merging logic ensures that all shards marked
the query as not being correctly spelled, which is good, but also expects all
shards to return some suggestions, which isn't necessarily the case. So if
shard 1 returns 10 suggestions but shard 2 returns none, the final result will
contain no suggestions because the term has suggestions from only 1 of 2 shards.
This isn't the case with the DirectSolrSpellChecker which works properly.
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