yes LCS has its own compacting thing. It does not honor min compaction, max compaction, and no-ops major compaction. The issue is that at the moment you change your system moves all your sized data to L0 and then starts a huge compaction grid to level it.
It would be great to just make this change to one server and see read/write. Check out the write sampling mode. Edward On Tue, Mar 12, 2013 at 9:08 AM, Hiller, Dean <dean.hil...@nrel.gov> wrote: > We tested it in QA, but in production it brought our cluster to a halt > even though we setcompactionthroughput to 1, we were severely limited. > Nodetool stop compaction did not seem to have any impact either. We ended > up increasing memory on one node to help alleviate some issue(cranked it up > to 16G and we hope to put it back down to 8 G later). > > Just be careful if you are trying to make the switch. Also, I added this > jira ticket which would be extremely nice to turn on LCS for a CF/node and > do a node by node switch… > > https://issues.apache.org/jira/browse/CASSANDRA-5335 > > > Dean >
