thank you. I will try it.
On Mon, Aug 8, 2011 at 11:18 PM, Rich Cariens <richcari...@gmail.com> wrote: > We patched our 1.4.1 build with > SOLR-1969<https://issues.apache.org/jira/browse/SOLR-1969>(making > MMapDirectory configurable) and realized a 64% search performance > boost on our Linux hosts. > > On Mon, Aug 8, 2011 at 10:05 AM, Dyer, James <james.d...@ingrambook.com>wrote: > >> If you want to try MMapDirectory with Solr 1.4, then copy the class >> org.apache.solr.core.MMapDirectoryFactory from 3.x or Trunk, and either add >> it to the .war file (you can just add it under "src/java" and re-package the >> war), or you can put it in its own .jar file in the "lib" directory under >> "solr_home". Then, in solrconfig.xml, add this entry under the root >> "config" element: >> >> <directoryFactory class="org.apache.solr.core.MMapDirectoryFactory" /> >> >> I'm not sure if MMapDirectory will perform better for you with Linux over >> NIOFSDir. I'm pretty sure in Trunk/4.0 it's the default for Windows and >> maybe Solaris. In Windows, there is a definite advantage for using >> MMapDirectory on a 64-bit system. >> >> James Dyer >> E-Commerce Systems >> Ingram Content Group >> (615) 213-4311 >> >> >> -----Original Message----- >> From: Li Li [mailto:fancye...@gmail.com] >> Sent: Monday, August 08, 2011 4:09 AM >> To: solr-user@lucene.apache.org >> Subject: how to enable MMapDirectory in solr 1.4? >> >> hi all, >> I read Apache Solr 3.1 Released Note today and found that >> MMapDirectory is now the default implementation in 64 bit Systems. >> I am now using solr 1.4 with 64-bit jvm in Linux. how can I use >> MMapDirectory? will it improve performance? >> >
