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Posted to user@cassandra.apache.org by Jai Bheemsen Rao Dhanwada <ja...@gmail.com> on 2018/10/25 18:35:54 UTC

How to measure the schema size

Hello,

I am running into a situation where huge schema (# of CF) causing OOM
issues to the heap. is there a way to measure how much size each column
family uses in the heap?

Re: How to measure the schema size

Posted by Jai Bheemsen Rao Dhanwada <ja...@gmail.com>.
thank you let me review.

On Fri, Oct 26, 2018 at 3:35 PM Sebastian Estevez <
sebastian.estevez@datastax.com> wrote:

> Here's the metrics you want:
> http://cassandra.apache.org/doc/latest/operating/metrics.html#table-metrics
>
> The best practice is to run fewer bigger tables. If it's a lot of tables
> you're likely out of luck aside from throwing more RAM at the problem.
>
> All the best,
>
>
>
> Sebastián Estévez | Vanguard Solution Architect
>
> Mobile +1.954.905.8615
>
> sebastian.estevez@datastax.com  |  datastax.com
>
> <https://www.linkedin.com/company/datastax>
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>
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> 20% Discount Code: estevez20
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>
> On Fri, Oct 26, 2018 at 6:25 PM Jai Bheemsen Rao Dhanwada <
> jaibheemsen@gmail.com> wrote:
>
>> anyone has any idea on this?
>>
>> On Thu, Oct 25, 2018 at 11:35 AM Jai Bheemsen Rao Dhanwada <
>> jaibheemsen@gmail.com> wrote:
>>
>>> Hello,
>>>
>>> I am running into a situation where huge schema (# of CF) causing OOM
>>> issues to the heap. is there a way to measure how much size each column
>>> family uses in the heap?
>>>
>>

Re: How to measure the schema size

Posted by Sebastian Estevez <se...@datastax.com>.
Here's the metrics you want:
http://cassandra.apache.org/doc/latest/operating/metrics.html#table-metrics

The best practice is to run fewer bigger tables. If it's a lot of tables
you're likely out of luck aside from throwing more RAM at the problem.

All the best,



Sebastián Estévez | Vanguard Solution Architect

Mobile +1.954.905.8615

sebastian.estevez@datastax.com  |  datastax.com

<https://www.linkedin.com/company/datastax>
<https://www.facebook.com/datastax> <https://twitter.com/datastax>
<http://feeds.feedburner.com/datastax> <https://github.com/datastax/>

<https://www.cvent.com/events/datastax-accelerate/registration-15f868df73ed46488d1d159da20858d4.aspx?r=cc6bf9aa-c933-4d93-9501-904fd550e1ad&refid=mainreglink&fqp=true>

20% Discount Code: estevez20


On Fri, Oct 26, 2018 at 6:25 PM Jai Bheemsen Rao Dhanwada <
jaibheemsen@gmail.com> wrote:

> anyone has any idea on this?
>
> On Thu, Oct 25, 2018 at 11:35 AM Jai Bheemsen Rao Dhanwada <
> jaibheemsen@gmail.com> wrote:
>
>> Hello,
>>
>> I am running into a situation where huge schema (# of CF) causing OOM
>> issues to the heap. is there a way to measure how much size each column
>> family uses in the heap?
>>
>

Re: How to measure the schema size

Posted by Jai Bheemsen Rao Dhanwada <ja...@gmail.com>.
anyone has any idea on this?

On Thu, Oct 25, 2018 at 11:35 AM Jai Bheemsen Rao Dhanwada <
jaibheemsen@gmail.com> wrote:

> Hello,
>
> I am running into a situation where huge schema (# of CF) causing OOM
> issues to the heap. is there a way to measure how much size each column
> family uses in the heap?
>