I don't have any numbers for you but the overhead should be very low. Do you just want to make sure your query is ok you an also just send a search request and see if it fails?
That is possible yes, but executing a search query on all the shards is expensive.
We do not have very large query as of now, but some complex query which spawns across multiple indices and multiple shards should be validated first before executing.
Apache, Apache Lucene, Apache Hadoop, Hadoop, HDFS and the yellow elephant
logo are trademarks of the
Apache Software Foundation
in the United States and/or other countries.