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From "KARR, DAVID" <>
Subject RE: Rationale for using Hazelcast in front of Cassandra?
Date Thu, 06 Oct 2016 22:00:07 GMT
Clearly, with “traditional” RDBMSs, you tend to put a cache “close to” the client.
 However, I was under the impression that Cassandra nodes could be positioned “close to”
their clients, and Cassandra has its own cache (I believe), so how effective would it be to
put a cache in front of a cache?

From: Dorian Hoxha []
Sent: Thursday, October 06, 2016 2:52 PM
Subject: Re: Rationale for using Hazelcast in front of Cassandra?

Maybe when you can have very hot keys that can give trouble to your 3(replication) cassandra
nodes ?
Example: why does facebook use memcache ? They certainly have things distributed on thousands
of servers.

On Thu, Oct 6, 2016 at 11:40 PM, KARR, DAVID <<>>
I've seen use cases that briefly describe using Hazelcast as a "front-end" for Cassandra,
perhaps as a cache.  This seems counterintuitive to me.  Can someone describe to me when this
kind of architecture might make sense?

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