Thanks Chetan, that's very helpful. Regards Julian
On Mon, Nov 21, 2016 at 3:47 PM, Chetan Mehrotra <[email protected]> wrote: > 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
