> I saw the ticket about compaction throttling, just wonder is that necessary > to add an option or is there anyway to do repair throttling? > every time I run nodetool repair, it uses all disk io and the server load > goes up quickly, just wonder is there anyway to make it smoother.
The validating compaction that is part of repair is subject to compaction throttling. The streaming of sstables afterwards is not however. In 1.0 there is thottling of streaming: https://issues.apache.org/jira/browse/CASSANDRA-3080 -- / Peter Schuller (@scode on twitter)
