On Wed, 20 Jun 2012, Travis Rhoden wrote:
> Is there a way I can monitor the utilization of the OSD journal? I
> would like to know if data is coming in fast enough to fill the
> journal, and thus slow down all the subsequent writes.
>
> Once the journal is full, that becomes the bottleneck for writes, no?
> (assuming that writes to the journal are faster than the OSD -- such
> as with tmpfs or an SSD. I'm using tmpfs).
Not yet. It should be instrumented with PerfCounters similar to the other
components, but that hasn't happened yet. Opening
http://tracker.newdream.net/issues/2619
sage
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