Hi

I have successfully create a really cool Lucene41x8PostingsFormat class (a copy of the Lucene41PostingsFormat class modified to use 8 times the default block size), registered the format as required. In the schema.xml I have created a field type string with this postingsformat and lastly I'm using this field type for my id field. This all works great and as a consequence the .tip files of the Lucene index (segments) are considerably smaller and the same goes for the Solr JVM Memory usage (which was the end goal).

Now I need to find the consequences (besides the disk and memory usage) of this change to the id-field. I would expect that id-searches are slower. But when will Solr/Lucene do id-searches? I have myself no user scenarios where my documents are searched by the id value.

Thanks for any comments.

Best regards Trym

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