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Date: Sat, 27 Mar 2010 07:57:49 +0100
Message-ID: <429591151003262357s44a8caebn8253afd400b2333d@mail.gmail.com>
Subject: Re: Ring management and load balance
From: =?ISO-8859-1?Q?Roland_H=E4nel?= <roland@haenel.me>
To: user@cassandra.apache.org
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But this

26.03.2010 22:29 schrieb am "Rob Coli" <rcoli@digg.com>:

On 3/26/10 1:36 PM, Roland H=E4nel wrote:
>
> If I was going to write such a tool: do you think the th...
The JMX interface exposes an Attribute which seems appropriate to this use.
It is called "TotalDiskSpaceUsed," and is available on a per-columnfamily
basis. Given a CF called "Users" in a Keyspace called "MyKeyspace", it is
accessible at :

"
org.apache.cassandra.db:type=3DColumnFamilyStores,keyspace=3DMyKeyspace,col=
umnfamily=3DUsers
"

Unfortunately, I have yet to document the per-CF "ColumnFamilyStores" and
"Caches" JMX interface Attributes and Operations, including this one. But
when I do so, I will do it here :

http://wiki.apache.org/cassandra/JmxInterface

=3DRob

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<p>But this</p>
<p><blockquote type=3D"cite">26.03.2010 22:29 schrieb am &quot;Rob Coli&quo=
t; &lt;<a href=3D"mailto:rcoli@digg.com">rcoli@digg.com</a>&gt;:<br><br><p>=
<font color=3D"#500050">On 3/26/10 1:36 PM, Roland H=E4nel wrote:<br>&gt;<b=
r>&gt; If I was going to write such a tool: do you think the th...</font></=
p>

The JMX interface exposes an Attribute which seems appropriate to this use.=
 It is called &quot;TotalDiskSpaceUsed,&quot; and is available on a per-col=
umnfamily basis. Given a CF called &quot;Users&quot; in a Keyspace called &=
quot;MyKeyspace&quot;, it is accessible at :<br>

<br>
&quot;<br>
org.apache.cassandra.db:type=3DColumnFamilyStores,keyspace=3DMyKeyspace,col=
umnfamily=3DUsers<br>
&quot;<br>
<br>
Unfortunately, I have yet to document the per-CF &quot;ColumnFamilyStores&q=
uot; and &quot;Caches&quot; JMX interface Attributes and Operations, includ=
ing this one. But when I do so, I will do it here :<br>
<br>
<a href=3D"http://wiki.apache.org/cassandra/JmxInterface" target=3D"_blank"=
>http://wiki.apache.org/cassandra/JmxInterface</a><br><font color=3D"#88888=
8">
<br>
=3DRob<br>
</font></blockquote></p>

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