Mostly, they are I/O and CPU intensive during major compaction. If ganglia doesn't have anything suspicious there, then what is performance loss ? Read or write? On Nov 17, 2011 1:01 PM, "Maxim Potekhin" <potek...@bnl.gov> wrote:
> In view of my unpleasant discovery last week that deletions in Cassandra > lead to a very real > and serious performance loss, I'm working on a strategy of moving forward. > > If the tombstones do cause such problem, where should I be looking for > performance bottlenecks? > Is it disk, CPU or something else? Thing is, I don't see anything > outstanding in my Ganglia plots. > > TIA, > > Maxim > >
