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From Ikeda Anthony <>
Subject Re: Programmatically allow only one out of two types of rows in a CF to enter the CACHE
Date Sat, 29 Oct 2011 17:54:19 GMT
Okay so as most know this practice is called a wide row - we use them quite a lot. However,
as your schema shows it will cache (while being active) all the row in memory.  One way we
got around this issue was to basically create some materialized views of any more common data
so we can easily get to the minimum amount of information required without blowing too much
memory with the larger representations.

My perspective is that indexing some of the higher levels of data would be the way to go -
Solr or elastic search for distributed or if you know you only need it local just use a caching
solution like ehcache.


On 28/10/2011, at 21:42 PM, Aditya Narayan wrote:

> I need to keep the data of some entities in a single CF but split in two rows for each
entity. One row contains an overview information for the entity & another row contains
detailed information about entity. I am wanting to keep both rows in single CF so they may
be retrieved in a single query when required together. 
> Now the problem I am facing is that I want to cache only first type of rows(ie, the overview
containing rows) & avoid second type rows(that contains large data) from getting into
> Is there a way I can manipulate such filtering of cache entering rows from a single CF?

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