jpountz opened a new pull request #1872: URL: https://github.com/apache/lucene-solr/pull/1872
With recent changes to stored fields that split blocks into several sub blocks, the merge instance has become much slower at random access since it would decompress all sub blocks when accessing a document. Since stored fields likely get accessed in random order at flush time when index sorting is enabled, it's better not to use the merge instance. On a synthetic benchmark that has one stored field and one numeric doc-value field that is used for sorting and fed with random values, this made indexing more than 4x faster. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
