What configuration options are worth considering in Cassandra if you use an SSD instead of a spinning disk?

Question

I just replaced the Cassandra cluster with new solid state drives instead of spinning disks. What configuration options would you recommend me consider? Feel free to post links to blog posts / presentations if you know about them (yes, I googled).

Answer 1

Based on quick browsing, cassandra.yamlthere are three that I see immediately:

memtable_flush_writers: The default value is 2, but the text above the setting indicates that "if your data directories are supported by SSDs, you should increase this to the number of cores."

trickle_fsync: fsync, . , true " SSD, ".

concurrent_compactors: . memtable_flush_writers, , SSD .

, DataStax :

, SSTables .