My experience with SSDs and ZK has been discouraging. SSDs have some really terrible corner cases for latency. I've seen them take 40+ seconds (that's not a mistake - seconds) for fsync to complete. When this happened (every few hours) all of the sessions would timeout.
See this article: http://storagemojo.com/2012/06/07/the-ssd-write-cliff-in-real-life/ Patrick On Wed, Oct 3, 2012 at 9:59 AM, Jun Rao <[email protected]> wrote: > Hi, > > Will storing the ZK commit log on SSD improve ZK write latency? Does a ZK > write wait until data is flushed to disk? > > Thanks, > > Jun
