Hi Ajay,
 
My understanding is this,If you have a cluster of 3 nodes with replication 
factor of 3 , then the latency has more roll in throughput.
 
It the cluster size is 6 with replication factor or 3 and if  you are using 
multithreaded client, then the latency remain same and you will get better 
throughput.(Not because of 6 node but because of 6 nodes and multiple threads).
 
Thanks & Regards
Job M Thomas 
Platform & Technology
Mob : 7560885748

________________________________

From: Ajay [mailto:ajay.ga...@gmail.com]
Sent: Fri 12/26/2014 11:57 AM
To: user@cassandra.apache.org
Subject: Re: Throughput Vs Latency


Thanks Thomas for the clarification.


If I use the Consistency level of QUORUM for Read and Write, the Latency would 
affect the Throughput right?


Thanks

Ajay


On Fri, Dec 26, 2014 at 11:15 AM, Job Thomas <j...@suntecgroup.com> wrote:


        Hi,
         
        First of all,the write latency of cassandra is not high(Read is high).
         
        The high throughput is achieved through distributes read and write. 
         
        Your doubt ( If Latency is more how come the Throughput is high ) is 
some what right if you put high consistency to both read and write.
         
        You will get distributed abilities since it is not Master/Slave 
architecture(Like HBase).
         
         If  your consistency is lesser,then some nodes out of all replica 
nodes are free and will be used for another read/write . [ Think you are using 
multithreaded 
        application ]
         
        Thanks & Regards
        Job M Thomas 
        Platform & Technology
        Mob : 7560885748

________________________________

        From: Ajay [mailto:ajay.ga...@gmail.com]
        Sent: Fri 12/26/2014 10:46 AM
        To: user@cassandra.apache.org
        Subject: Throughput Vs Latency
        
        
        Hi,
        
        
        I am new to No SQL (and Cassandra). As I am going through few articles 
on Cassandra, it says Cassandra achieves highest throughput among various No 
SQL solutions but at the cost of high  read and write latency. I have a basic 
question here - (If my understanding is right) Latency means the time taken to 
accept input, process and respond back. If Latency is more how come the 
Throughput is high?
        
        
        Thanks
        
        Ajay
        


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