On 2/7/2017 6:47 AM, Uchit Patel wrote: > I want detailed step by step guidance for SOLR version upgrade from > 5.1.0 to 6.4.0 for Windows and Linux both.
On Windows, and on any other OS where the installer wasn't used, there are no explicit install instructions, so there are no explicit upgrade instructions. When you start the new version, you can tell it where the solr home is, or you can just copy the solr home from the old version before you start. The solr home will default to server/solr if it is not specified. Because there is no installer for Windows, running on another OS (where the installer can be used) would be a good idea if you have the option. On Linux, you just run the service installer from the new version with the same parameters you used for the old version, adding the "-f" parameter to force an upgrade. The location of the solr.in.sh file will move from the var dir in 5.1.0 (normally /var/solr) to /etc/default in newer versions, so make sure that the new file contains what you want it to contain. There will be differences in configuration defaults which might produce unexpected results in how Solr operates. In particular, the managed schema is now default, instead of the classic schema. The classic schema can still be used if you desire it, but must be explicitly configured in solrconfig.xml. Thanks, Shawn
