On 12/22/2014 2:10 PM, Nishanth S wrote: > I have 5 drives in my machine which are mounted to 5 different > locations(/d/1 ,/d/2,/d/3).How can I point solr to write to all these > directories?.
Erick has asked a relevant question. I assume that you're trying to take advantage of the extra I/O bandwidth offered by additional spindles, but it would be good for you to clarify why you're trying to do this. The way that I would do it if it were me is by letting SolrCloud create the instance directories with a "data" directory in them, then shut down Solr, move the data directories to alternate locations, and create a symlink to link each "data" directory to the other location. You have indicated paths with forward slashes, so I'm assuming you're on a *NIX platform that has symlinks. Something to remember about Solr: If Solr is actually reading off the disk, performance is going to be far less than optimal, even if different indexes live on different spindles. The way to make Solr fast is to install a LOT of memory, so that the operating system can load the index into RAM and run without hitting the disk very often at all. If you've got an ideal setup, the number and speed of your disks will have very little impact on performance, except at reboot time. http://wiki.apache.org/solr/SolrPerformanceProblems#OS_Disk_Cache Thanks, Shawn
