Daniel,
iirc spill requests are triggered by a gc, and spill_count is triggered by
an actual spill, so the former number may be a bit misleading (if gc is
effective, lots of gcs might be fine).

D

On Wed, Aug 3, 2011 at 10:12 AM, Daniel Dai <da...@hortonworks.com> wrote:

> Spill means Pig need to dump memory into disk. It happens when Pig
> deals with a large key, and Pig run short of memory. The high number
> indicates Pig need to write to disk frequently and performance may
> downgrade, and you may explore approach, such as using skewed join.
>
> Daniel
>
> On Tue, Aug 2, 2011 at 11:43 AM, Sean Barry
> <sba...@cricketcommunications.com> wrote:
> > org.apache.pig.PigCounters
> >
> > PROACTIVE_SPILL_COUNT_RECS
> >
> > 0
> >
> > 2,372,598
> >
> > 2,372,598
> >
> > SPILLABLE_MEMORY_MANAGER_SPILL_COUNT
> >
> > 0
> >
> > 64
> >
> > 64
> >
> > PROACTIVE_SPILL_COUNT_BAGS
> >
> >
> >
> > I was checking my jobtracker and I have no idea what these three counters
> are representative of...
> > Can anyone shed some light, please?
> >
> > -SB
> >
>

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