incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jordan Pittier - Rezel <jor...@rezel.net>
Subject Re: Uneven distribution using RP
Date Sun, 20 Jun 2010 14:53:24 GMT
Node 1 should have token 42535295865117307932921825928971026432 and node
3 127605887595351923798765477786913079296 according to the formula i *
(2**127 / 4) for i=1..4

On Sun, Jun 20, 2010 at 4:31 PM, James Golick <jamesgolick@gmail.com> wrote:

> I ran cleanup on all of them and the distribution looked roughly even after
> that, but a couple of days later, it's looking pretty uneven.
>
>
> On Sun, Jun 20, 2010 at 10:21 AM, Jordan Pittier - Rezel <jordan@rezel.net
> > wrote:
>
>> Hi,
>> Have you tried nodetool repair (or cleanup) on your nodes ?
>>
>>
>> On Sun, Jun 20, 2010 at 4:16 PM, James Golick <jamesgolick@gmail.com>wrote:
>>
>>> I just increased my cluster from 2 to 4 nodes, and RF=2 to RF=3, using
>>> RP.
>>>
>>> The tokens seem pretty even on the ring, but two of the nodes are far
>>> more heavily loaded than the others. I understand that there are a variety
>>> of possible reasons for this, but I'm wondering whether anybody has
>>> suggestions for now to tweak the tokens such that this problem is
>>> alleviated. Would it be better to just add 2 more nodes?
>>>
>>> Address       Status     Load          Range
>>>          Ring
>>>
>>> 170141183460469231731687303715884105728
>>> 10.36.99.140  Up         61.73 GB
>>>  43733172796241720623128947447312912170     |<--|
>>> 10.36.99.134  Up         69.7 GB
>>> 85070591730234615865843651857942052864     |   |
>>> 10.36.99.138  Up         54.08 GB
>>>  128813844387867495544257452469445200073    |   |
>>> 10.36.99.136  Up         54.75 GB
>>>  170141183460469231731687303715884105728    |-->|
>>>
>>>
>>
>>
>

Mime
View raw message