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Date: Sat, 31 Aug 2013 15:10:01 -0700 (PDT)
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From: "Jonathan Haddad" <jonathan.haddad@gmail.com>
To: user@cassandra.apache.org
Cc: user@cassandra.apache.org
Subject: Re: Low Row Cache Request
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9/12 =3D .75

=20=20=20=20
=20=20=20=20=20=20


    It's a rate, not a percentage.

On Sat, Aug 31, 2013 at 2:21 PM, S=C3=A1vio Teles <savio.teles@lupa.inf.ufg=
.br>
wrote:

> I'm running one Cassandra node -version 1.2.6- and I *enabled* the *row
> cache* with *1GB*.
> But looking the Cassandra metrics on JConsole, *Row Cache Requests* are
> very *low* after a high number of queries (about 12 requests).
> RowCache metrics:
> *Capacity: 1GB*
> *Entries: 3
> *
> *HitRate: 0.75
> *
> *Hits: 9
> *
> *Requests: 12
> *
> *Size: 191630
> *
> Something wrong=3F
> --=20
> Atenciosamente,
> S=C3=A1vio S. Teles de Oliveira
> voice: +55 62 9136 6996
> http://br.linkedin.com/in/savioteles
> Mestrando em Ci=C3=AAncias da Computa=C3=A7=C3=A3o - UFG
> Arquiteto de Software
> Laboratory for Ubiquitous and Pervasive Applications (LUPA) - =
UFG
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    <div>9/12 =3D .75</div>
    <div>
      <br></div>
    <div>It's a rate, not a percentage.=C2=A0</div>
  <br><br><div class=3D=22gmail=5Fquote=22><p>On Sat, Aug 31, 2013 at 2:21 =
PM, S=C3=A1vio Teles <span dir=3D=22ltr=22>&lt;<a href=3D=22mailto:savio.=
teles@lupa.inf.ufg.br=22 target=3D=22=5Fblank=22>savio.teles@lupa.inf.ufg.=
br</a>&gt;</span> wrote:<br></p><blockquote class=3D=22gmail=5Fquote=22 =
style=3D=22margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;=
=22>
    <div dir=3D=22ltr=22>
      <div>
        <div>
          <div>
            <div>
              <div><div><div>I'm running one Cassandra node -version 1.2.6-=
 and I <b>enabled</b> the <b>row cache</b> with <b>1GB</b>.=
<br><br></div>But looking the Cassandra metrics on JConsole, <b>Row Cache =
Requests</b> are very <b>low</b> after a high number of queries (about 12 =
requests).<br><br></div>RowCache metrics:<br><br></div>
              <div>
                <b>Capacity: 1GB</b>
                <br></div>
              <b>Entries: 3<br></b>
            </div>
            <b>HitRate: 0.75<br></b>
          </div>
          <b>Hits: 9<br></b>
        </div>
        <b>Requests: 12<br></b>
      </div>
      <b>Size: 191630<br></b>
      <div>
        <div>
          <div>
<div><div><br></div><div><span id=3D=22result=5Fbox=22 class=3D=22=22 =
lang=3D=22en=22><span class=3D=22=22>Something wrong</span><span =
class=3D=22=22>=3F</span></span></div><div><br><div><div><div><br><br =
clear=3D=22all=22><div><div><br>-- <br><font color=3D=22#888888=22>Atencios=
amente,<br>
S=C3=A1vio S. Teles de Oliveira<br><div>voice: +55 62 9136 6996<br><a =
href=3D=22http://br.linkedin.com/in/savioteles=22 target=3D=22=5Fblank=22>h=
ttp://br.linkedin.com/in/savioteles</a><br><div>

Mestrando em Ci=C3=AAncias da Computa=C3=A7=C3=A3o - UFG <br>Arquiteto de =
Software<br></div><div><div>Laboratory for Ubiquitous and Pervasive =
Applications (LUPA) - UFG</div></div></div></font>
</div></div></div></div></div></div></div></div>
        </div>
      </div>
    </div>
  </blockquote></div><br>
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