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	<C8EBAA77.B213%jeffrey.damick@neustar.biz>
Date: Mon, 25 Oct 2010 23:32:20 -0400
Message-ID: <AANLkTimGqgY7uUJNrxzAC=qWr5r_uE80vX3zcU1yRTV9@mail.gmail.com>
Subject: Re: keys_cached percent?
From: Edward Capriolo <edlinuxguru@gmail.com>
To: user@cassandra.apache.org
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On Mon, Oct 25, 2010 at 9:43 PM, Damick, Jeffrey
<Jeffrey.Damick@neustar.biz> wrote:
> Sure - so percents aren=92t supported anymore in 0.7.x, which is fine, I =
just
> wanted to clarify.
>
> thanks
>
>
> On 10/25/10 9:31 PM, "Aaron Morton" <aaron@thelastpickle.com> wrote:
>
> To cache 100% set the value to 1. The comments in the yaml below do
> explicitly say this, but its discussed here
> http://wiki.apache.org/cassandra/StorageConfiguration?highlight=3D(keys)|=
(cached)
>
> Aaron
>
>
> On 26 Oct, 2010,at 02:02 PM, "Damick, Jeffrey" <Jeffrey.Damick@neustarbiz=
>
> wrote:
>
> I tried a few variations, but when it set it to: 100% =A0or =93100%=94 or=
 similar
> I get:
>
> ERROR 19:37:31,898 Fatal error: null; Can't construct a java object for
> tag:yaml.org,2002:org.apache.cassandra.config.Config; exception=3DCannot
> create property=3Dkeyspaces for
> JavaBean=3Dorg.apache.cassandra.config.Config@32955cd5; Cannot create
> property=3Dcolumn_families for
> JavaBean=3Dorg.apache.cassandra.config.RawKeyspace@31b446d1; Cannot creat=
e
> property=3Dkeys_cached for
> JavaBean=3Dorg.apache.cassandra.config.RawColumnFamily@c68c26c; For input
> string: "100%"
> Bad configuration; unable to start server
>
> It looks like if it=92s yaml it doesn=92t pass through the
> FBUtils.parseDoubleOrPercent(), and since the bean has a double the yaml
> deserializer is blowing up... Just a guess..
>
> -jeff
>
>
> On 10/25/10 3:51 PM, "Aaron Morton" <aaron@thelastpickle.com> wrote:
>
> It should do, this is the comment from the yaml
>
> # =A0=A0=A0=A0- keys_cached: specifies the number of keys per sstable who=
se
> # =A0=A0=A0=A0=A0=A0=A0locations we keep in memory in "mostly LRU" order.=
 =A0(JUST the key
> # =A0=A0=A0=A0=A0=A0=A0locations, NOT any column values.) Specify a fract=
ion (value less
> # =A0=A0=A0=A0=A0=A0=A0than 1) or an absolute number of keys to cache. =
=A0Defaults to 200000
> # =A0=A0=A0=A0=A0=A0=A0keys.
>
> Is it not working?
> Aaron
>
>
> On 26 Oct, 2010,at 08:45 AM, "Damick, Jeffrey" <Jeffrey.Damick@neustar.bi=
z>
> wrote:
>
> Does 0.7 not support percentages in the keys_cached (in the yaml config)?
> =A0(I=92m on 07.0b2 so maybe it has been fixed?)
>
> thanks
>
>
>
>

% IS supported .50 is 50%