In general its better that you use a BlobStore even with SegmenNodeStore. In that case CoR and CoW allows using Lucene's memory mapped FSDirectory support providing better performance.
Some old numbers can be seen at [1] Chetan Mehrotra [1] https://issues.apache.org/jira/browse/OAK-1702?focusedCommentId=13965551&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13965551 On Mon, Nov 21, 2016 at 8:03 PM, Julian Sedding <[email protected]> wrote: > Hi all > > Do we have experience or measurements to suggest that using Lucene's > CopyOnRead and CopyOnWrite features is beneficial when the > SegmentNodeStore isused? > > The documentation indirectly suggests that CopyOnRead is only > beneficial with remote NodeStores (i.e. DocumentNodeStore). So the > question is whether the SegmentNodeStore implementation allows > sufficiently fast access to Lucene's index files, or whether the > associated overhead still makes CopyOnRead beneficial. > > Thanks for any insights! > > Regards > Julian
