: Hiller, Dean [mailto:dean.hil...@nrel.gov]
Sent: Wednesday, April 24, 2013 23:38
To: user@cassandra.apache.org
Subject: Re: compaction throughput rate not even close to 16MB
Thanks much!!! Better to hear at least one other person sees the same thing
;). Sometimes these posts just go silent
I was wondering about the compactionthroughput. I never see ours get even
close to 16MB and I thought this is supposed to throttle compaction, right?
Ours is constantly less than 3MB/sec from looking at our logs or do I have this
totally wrong? How can I see the real throughput so that I can
I have noticed the same. I think in the real world your compaction
throughput is limited by other things. If I had to speculate I would say
that compaction can remove expired tombstones, however doing this requires
bloom filter checks, etc.
I think that setting is more important with multi
On Wed, Apr 24, 2013 at 1:33 PM, Edward Capriolo edlinuxg...@gmail.com wrote:
I think that setting is more important with multi threaded compaction and/or
more compaction slots. In those cases it may actually throttle something.
Or if you're simultaneously doing a repair, which does a
@cassandra.apache.orgmailto:user@cassandra.apache.org
Date: Wednesday, April 24, 2013 2:33 PM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: compaction throughput rate not even close to 16MB
I have noticed the same. I think in the real
, we are on SSD.
-Wei
From: Hiller, Dean dean.hil...@nrel.gov
To: user@cassandra.apache.org user@cassandra.apache.org
Sent: Wednesday, April 24, 2013 1:37 PM
Subject: Re: compaction throughput rate not even close to 16MB
Thanks much!!! Better to hear at least
