Likely lots of disk + network IO, yes. Put SPM for Solr on your nodes to double check.
Otis > On Dec 26, 2014, at 09:17, Mahmoud Almokadem <prog.mahm...@gmail.com> wrote: > > Dears, > > We've installed a cluster of one collection of 350M documents on 3 > r3.2xlarge (60GB RAM) Amazon servers. The size of index on each shard is > about 1.1TB and maximum storage on Amazon is 1 TB so we add 2 SSD EBS > General purpose (1x1TB + 1x500GB) on each instance. Then we create logical > volume using LVM of 1.5TB to fit our index. > > The response time is about 1 and 3 seconds for simple queries (1 token). > > Is the LVM become a bottleneck for our index? > > Thanks for help.
