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From: Suruchi Deodhar <suruchi.deodhar@generalsentiment.com>
Subject: Re: Cassandra 1.2.9 cluster with vnodes is heavily unbalanced.
Date: Thu, 19 Sep 2013 08:16:10 -0400
To: "user@cassandra.apache.org" <user@cassandra.apache.org>


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Hi Richard,=20
This is a brand new cluster which started with num_tokens =3D256 on first bo=
ot and chose random tokens. The attached ring status is after data is loaded=
 into the cluster for the first time using sdtableloader and remains that wa=
y even after Cassandra is restarted.

Thanks,
Suruchi

On Sep 19, 2013, at 3:46, Richard Low <richard@wentnet.com> wrote:

> On 19 September 2013 02:06, Jayadev Jayaraman <jdisalive@gmail.com> wrote:=

>=20
>> We use vnodes with num_tokens =3D 256 ( 256 tokens per node ) . After loa=
ding some data with sstableloader , we find that the cluster is heavily imba=
lanced :=20
>=20
> How did you select the tokens?  Is this a brand new cluster which started o=
n first boot with num_tokens =3D 256 and chose random tokens?  Or did you st=
art with num_tokens =3D 1 and then increase it?
>=20
> Richard.

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div><span></span></div><div><meta http-equ=
iv=3D"content-type" content=3D"text/html; charset=3Dutf-8"><div><span></span=
></div><div><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"><div>Hi Richard,&nbsp;</div><div>This is a brand new cluster which st=
arted with num_tokens =3D256 on first boot and chose random tokens. The atta=
ched ring status is after data is loaded into the cluster for the first time=
 using sdtableloader and remains that way even after Cassandra is restarted.=
</div><div><br></div><div>Thanks,</div><div>Suruchi</div><div><br>On Sep 19,=
 2013, at 3:46, Richard Low &lt;<a href=3D"mailto:richard@wentnet.com">richa=
rd@wentnet.com</a>&gt; wrote:<br><br></div><blockquote type=3D"cite"><div><d=
iv dir=3D"ltr">On 19 September 2013 02:06, Jayadev Jayaraman <span dir=3D"lt=
r">&lt;<a href=3D"mailto:jdisalive@gmail.com" target=3D"_blank">jdisalive@gm=
ail.com</a>&gt;</span> wrote:<div><br><div class=3D"gmail_extra"><div class=3D=
"gmail_quote">

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px=
 #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div>We use vnodes with num_t=
okens =3D 256 ( 256 tokens per node ) . After loading some data with sstable=
loader , we find that the cluster is heavily imbalanced :&nbsp;</div>

</div></blockquote><div><br></div><div>How did you select the tokens? &nbsp;=
Is this a brand new cluster which started on first boot with num_tokens =3D 2=
56 and chose random tokens? &nbsp;Or did you start with num_tokens =3D 1 and=
 then increase it?</div>

<div><br></div><div>Richard.</div></div></div></div></div>
</div></blockquote></div></div></body></html>=

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