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From Edward Capriolo <edlinuxg...@gmail.com>
Subject Re: keys_cached percent?
Date Tue, 26 Oct 2010 03:32:20 GMT
On Mon, Oct 25, 2010 at 9:43 PM, Damick, Jeffrey
<Jeffrey.Damick@neustar.biz> wrote:
> Sure - so percents aren’t 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=(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%  or “100%” 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=Cannot
> create property=keyspaces for
> JavaBean=org.apache.cassandra.config.Config@32955cd5; Cannot create
> property=column_families for
> JavaBean=org.apache.cassandra.config.RawKeyspace@31b446d1; Cannot create
> property=keys_cached for
> JavaBean=org.apache.cassandra.config.RawColumnFamily@c68c26c; For input
> string: "100%"
> Bad configuration; unable to start server
>
> It looks like if it’s yaml it doesn’t 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
>
> #     - keys_cached: specifies the number of keys per sstable whose
> #        locations we keep in memory in "mostly LRU" order.  (JUST the key
> #        locations, NOT any column values.) Specify a fraction (value less
> #        than 1) or an absolute number of keys to cache.  Defaults to 200000
> #        keys.
>
> Is it not working?
> Aaron
>
>
> On 26 Oct, 2010,at 08:45 AM, "Damick, Jeffrey" <Jeffrey.Damick@neustar.biz>
> wrote:
>
> Does 0.7 not support percentages in the keys_cached (in the yaml config)?
>  (I’m on 07.0b2 so maybe it has been fixed?)
>
> thanks
>
>
>
>

% IS supported .50 is 50%

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