Regarding compaction thresholds... the BMT example says to set the threshold to 0 during an import.  Is this advisable during any bulk import (say using batch mutations or just lots and lots of thrift inserts)?

Also, when I asked "are folks open to..." I meant that I'm happy to code a patch if anyone's interested.

On Tue, Jun 1, 2010 at 12:41 PM, Ian Soboroff <> wrote:
Thanks.  Are folks open to exposing this via nodetool?  I've been trying to figure out a decent way to aggregate and expose all this information that is easier than nodetool and less noisy than nagios... suggestions appreciated.

(My cluster only exposes a master node and everything else is private, so running a pile of jconsoles is not even possible...)


On Tue, Jun 1, 2010 at 12:33 PM, Dylan Egan / <> wrote:
Hi Ian,

On Tue, Jun 1, 2010 at 9:27 AM, Ian Soboroff <> wrote:
> Are stats exposed over JMX for compaction?

You can view them via the
org.apache.cassandra.db:type=CompactionManager MBean. The PendingTasks
attribute might suit you best.