Hi Akash,
There are a lot of interesting articles written around this topic.
   
   - 
http://thelastpickle.com/blog/2017/08/02/time-series-data-modeling-massive-scale.html
   

   - 
https://medium.com/netflix-techblog/scaling-time-series-data-storage-part-i-ec2b6d44ba39
   


You shouldn't need to worry about hotspots if you select the partition key 
carefully and your cluster is configured properly. Please go through the links 
and if you have more clarification, please feel free to ask more questions here.
Thanks,
Dinesh 

    On Friday, January 11, 2019, 2:45:42 PM PST, Akash Gangil 
<akashg1...@gmail.com> wrote:  
 
 Hi, 

I have a data model where the partition key for a lot of tables is based on 
time 
(year, month, day, hour)
Would this create a hotspot in my cluster, given all the writes/reads would go 
to the same node for a given hour? Or does the cassandra storage engine also 
takes into account the table info like table name, when distributing the data?
If the above model would be a problem, what's the suggested way to solve this? 
Add tablename to partition key?

-- 
Akash
  

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