hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From lars hofhansl <lhofha...@yahoo.com>
Subject Re: Size of KeyValue
Date Thu, 01 Dec 2011 23:39:48 GMT
For my scans I have caching disabled. There must be something else producing significant amounts
of garbage.



----- Original Message -----
From: Dhruba Borthakur <dhruba@gmail.com>
To: dev@hbase.apache.org
Cc: lars hofhansl <lhofhansl@yahoo.com>
Sent: Thursday, December 1, 2011 3:19 PM
Subject: Re: Size of KeyValue

Most of our "garbage" is from block cache, not directly from the KVs. Is
that what you see?

thanks,
dhruba

On Thu, Dec 1, 2011 at 11:06 AM, Stack <stack@duboce.net> wrote:

> On Thu, Dec 1, 2011 at 10:57 AM, lars hofhansl <lhofhansl@yahoo.com>
> wrote:
> > To try this out I changed the server side code to keep track of the
> latest KV rather than the row, and also remove the caching from KV.
> > The difference for GC and runtime is within the noise. I have to
> conclude that allocating KVs is just not a big problem compared to other
> garbage being
> > produced during scans.
> >
> >
>
> Ain't all our garbage KVs?  (Though I suppose sometimes its blocks of
> KVs whether mslab or blocks from hdfs).
> St.Ack
>



-- 
Subscribe to my posts at http://www.facebook.com/dhruba


Mime
View raw message