Posted: March 13, 2015. Tags: Elasticsearch, Rails, Ruby
Elasticsearch will create indices on the fly for you. This can be a problem. e.g. indices created during test will not behave the same way as indices created in development.
If you are using Elasticsearch with Rails using the searchkick gem, then rake searchkick:reindex or Model.reindex will create an index with extra analyzers.
If an index is created on the fly, this does not happen:
console> DeliveredEmail.searchkick_index.delete => {"acknowledged"=>true} # Cause an index to be created automatically by indexing one row console> DeliveredEmail.first.reindex => {"_index"=>"delivered_emails_development", "_type"=>"delivered_email", "_id"=>"2120427", "_version"=>1, "created"=>true} # Note "analyzer ... not found" message in error console> DeliveredEmail.search("foo", fields:[:body]) Searchkick::InvalidQueryError: [400] {"error":"SearchPhaseExecutionException[Failed to execute phase [query], all shards failed; shardFailures {…, nested: QueryParsingException[[delivered_emails_development] [match] analyzer [searchkick_search] not found]; }]","status":400} => {"acknowledged"=>true} # Drop and recreate index the right way: console> DeliveredEmail.reindex => true # And now we get results console> DeliveredEmail.search("foo", fields:[:body]) => #<Searchkick::Results:0x007fd02f8a18b0 @klass=DeliveredEmail(id: integer, message_id: string, body: text, headers: text, created_at: datetime, updated_at: datetime), @response={"took"=>6, "timed_out"=>false, "_shards"=>{"total"=>5, "successful"=>5, "failed"=>0}, "hits"=>{"total"=>1, "max_score"=>0.30685282, "hits"=>[{"_index"=>"delivered_emails_development_20150313142335356", "_type"=>"delivered_email", "_id"=>"2120429", "_score"=>0.30685282}]}}, @options={:page=>1, :per_page=>100000, :padding=>0, :load=>true, :includes=>nil, :json=>false}>