We integrate ganglia
On Mon, Jun 28, 2010 at 1:53 AM, Jonathan Ellis wrote:
> short version:
>
> if o.a.c.concurrent.{ROW-READ-STAGE,ROW-MUTATION-STAGE} and
> o.a.c.db.CompactionManager have
>
> - completed task count increasing
> - pending tasks stable (for RRS and RMS, stable in low hundreds
short version:
if o.a.c.concurrent.{ROW-READ-STAGE,ROW-MUTATION-STAGE} and
o.a.c.db.CompactionManager have
- completed task count increasing
- pending tasks stable (for RRS and RMS, stable in low hundreds or
less, for CM stable in single digits or less)
- the log isn't spitting out Error lines
All,
We have been working through some operations scenarios, so that we are ready to
deploy our first Cassandra cluster into production in the coming months.
During this process our operations folks have asked us to provide a Health
Check service. I am using the word service here very liberally
