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From: Franc Carter <franc.carter@sirca.org.au>
Date: Mon, 13 Feb 2012 20:11:57 +1100
Message-ID: 
 <CAB5AukG8atNLVM7tk+3uFcgMj2ALWA4JW+NBFgdChT+hRkMTLg@mail.gmail.com>
Subject: Re: keycache persisted to disk ?
To: user@cassandra.apache.org
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On Mon, Feb 13, 2012 at 8:00 PM, Peter Schuller <peter.schuller@infidyne.com
> wrote:

> What is your total data size (nodetool info/nodetool ring) per node,
> your heap size, and the amount of memory on the system?
>

2 Node cluster, 7.9GB of ram (ec2 m1.large)
RF=2
11GB per node
Quorum reads
122 million keys
heap size is 1867M (default from the AMI I am running)
I'm reading about 900k keys

As I was just going through cfstats - I noticed something I don't understand

                Key cache capacity: 906897
                Key cache size: 906897

I set the key cache to 2million, it's somehow got to a rather odd number


>
> --
> / Peter Schuller (@scode, http://worldmodscode.wordpress.com)
>


-- 

*Franc Carter* | Systems architect | Sirca Ltd
 <marc.zianideferranti@sirca.org.au>

franc.carter@sirca.org.au | www.sirca.org.au

Tel: +61 2 9236 9118

Level 9, 80 Clarence St, Sydney NSW 2000

PO Box H58, Australia Square, Sydney NSW 1215

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On Mon, Feb 13, 2012 at 8:00 PM, Peter Schuller <span dir=3D"ltr">&lt;<a hr=
ef=3D"mailto:peter.schuller@infidyne.com">peter.schuller@infidyne.com</a>&g=
t;</span> wrote:<br><div class=3D"gmail_quote"><blockquote class=3D"gmail_q=
uote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1e=
x">

What is your total data size (nodetool info/nodetool ring) per node,<br>
your heap size, and the amount of memory on the system?<br></blockquote><di=
v><br></div><div>2 Node cluster, 7.9GB of ram (ec2 m1.large)</div><div>RF=
=3D2</div><div>11GB per node</div><div>Quorum reads</div><div>122 million k=
eys</div>

<div>heap size is 1867M (default from the AMI I am running)</div><div>I&#39=
;m reading about 900k keys</div><div><br></div><div>As I was just going thr=
ough cfstats - I noticed something I don&#39;t understand</div><div><br>

</div><div><div>=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 Key cache capacity: 906897<=
/div><div>=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 Key cache size: 906897</div></div=
><div><br></div><div>I set the key cache to 2million, it&#39;s somehow got =
to a rather odd number</div>

<div><br></div><div><br></div><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div></div><div class=3D"h5"><br>
<br>
--<br>
/ Peter Schuller (@scode, <a href=3D"http://worldmodscode.wordpress.com" ta=
rget=3D"_blank">http://worldmodscode.wordpress.com</a>)<br>
</div></div></blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>

<p style=3D"font-size:10pt;font-family:Helvetica;margin:0px"><span lang=3D"=
EN-US"><font face=3D"Arial"><span style=3D"font-size:13px"><b>Franc Carter<=
/b> </span><span style=3D"font-size:13px"><font color=3D"#9b9b9b">|</font><=
/span><span style=3D"font-size:13px"> Systems architect</span><span style=
=3D"font-size:13px"> </span><span style=3D"font-size:13px"><font color=3D"#=
9b9b9b">|</font></span><span style=3D"font-size:13px"> </span><span style=
=3D"font-size:13px">Sirca Ltd</span></font></span><span style=3D"color:rgb(=
227,160,71);font-family:Arial"><a href=3D"mailto:marc.zianideferranti@sirca=
.org.au" target=3D"_blank"><font color=3D"#e3a047"><br>

</font></a></span></p><p style=3D"font-size:10pt;font-family:Helvetica;marg=
in:0px"><span style=3D"color:rgb(227,160,71);font-family:Arial"><a href=3D"=
mailto:franc.carter@sirca.org.au" target=3D"_blank"><font color=3D"#e3a047"=
>franc.carter@sirca.org.au</font></a></span><span style=3D"font-family:Aria=
l">=A0</span><span style=3D"font-family:Arial;font-size:13px"><font color=
=3D"#9b9b9b">|</font>=A0</span><span style=3D"font-size:13px"><span style=
=3D"font-family:Arial"><a href=3D"http://www.sirca.org.au/" target=3D"_blan=
k"><font color=3D"#e3a047">www.sirca.org.au</font></a></span></span></p>


<p style=3D"font-family:Helvetica;font-size:10pt;margin:0px"><font color=3D=
"#9b9b9b" face=3D"Arial"><span style=3D"font-size:13px" lang=3D"EN-US">Tel:=
=A0<a value=3D"+61292369100">+61 2 9236 9118</a> </span><a value=3D"+124230=
03402"><br>

</a></font></p><p style=3D"font-family:Helvetica;font-size:10pt;margin:0px"=
>

<font color=3D"#adc4e2" face=3D"Arial"><span style=3D"font-size:13px"><span=
 lang=3D"EN-US">Level 9, 80 Clarence St, Sydney=A0NSW 2000</span><span lang=
=3D"EN-US"></span></span></font></p><p style=3D"font-family:Helvetica;font-=
size:10pt;margin:0px">


<font face=3D"Arial"><span style=3D"font-size:13px"><span lang=3D"EN-US"><f=
ont color=3D"#adc4e2">PO Box H58, Australia Square, Sydney NSW 1215</font><=
/span></span></font></p><br>

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