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From Maki Watanabe <watanabe.m...@gmail.com>
Subject Re: Unbalanced cluster with RandomPartitioner
Date Wed, 18 Jan 2012 01:19:51 GMT
Are there any significant difference of number of sstables on each nodes?

2012/1/18 Marcel Steinbach <marcel.steinbach@chors.de>:
> We are running regular repairs, so I don't think that's the problem.
> And the data dir sizes match approx. the load from the nodetool.
> Thanks for the advise, though.
>
> Our keys are digits only, and all contain a few zeros at the same
> offsets. I'm not that familiar with the md5 algorithm, but I doubt that it
> would generate 'hotspots' for those kind of keys, right?
>
> On 17.01.2012, at 17:34, Mohit Anchlia wrote:
>
> Have you tried running repair first on each node? Also, verify using
> df -h on the data dirs
>
> On Tue, Jan 17, 2012 at 7:34 AM, Marcel Steinbach
> <marcel.steinbach@chors.de> wrote:
>
> Hi,
>
>
> we're using RP and have each node assigned the same amount of the token
> space. The cluster looks like that:
>
>
> Address         Status State   Load            Owns    Token
>
>
> 205648943402372032879374446248852460236
>
> 1       Up     Normal  310.83 GB       12.50%
>  56775407874461455114148055497453867724
>
> 2       Up     Normal  470.24 GB       12.50%
>  78043055807020109080608968461939380940
>
> 3       Up     Normal  271.57 GB       12.50%
>  99310703739578763047069881426424894156
>
> 4       Up     Normal  282.61 GB       12.50%
>  120578351672137417013530794390910407372
>
> 5       Up     Normal  248.76 GB       12.50%
>  141845999604696070979991707355395920588
>
> 6       Up     Normal  164.12 GB       12.50%
>  163113647537254724946452620319881433804
>
> 7       Up     Normal  76.23 GB        12.50%
>  184381295469813378912913533284366947020
>
> 8       Up     Normal  19.79 GB        12.50%
>  205648943402372032879374446248852460236
>
>
> I was under the impression, the RP would distribute the load more evenly.
>
> Our row sizes are 0,5-1 KB, hence, we don't store huge rows on a single
> node. Should we just move the nodes so that the load is more even
> distributed, or is there something off that needs to be fixed first?
>
>
> Thanks
>
> Marcel
>
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