Re: Rationale for using Hazelcast in front of Cassandra?

2016-10-07 Thread Benjamin Roth
yer for a >> Cassandra back-end”), and I’m aware of at least one large private >> enterprise that does this. >> >> >> >> *From:* Dorian Hoxha [mailto:dorian.ho...@gmail.com] >> *Sent:* Friday, October 07, 2016 3:48 AM >> *To:* user@cassandra.apache.or

Re: Rationale for using Hazelcast in front of Cassandra?

2016-10-07 Thread Peter Lin
mail.com] > *Sent:* Friday, October 07, 2016 3:48 AM > *To:* user@cassandra.apache.org > *Subject:* Re: Rationale for using Hazelcast in front of Cassandra? > > > > Primary-key select is pretty fast in rdbms too and they also have caches. > By "close to" you mean in latency ? >

RE: Rationale for using Hazelcast in front of Cassandra?

2016-10-07 Thread KARR, DAVID
Cassandra back-end”), and I’m aware of at least one large private enterprise that does this. From: Dorian Hoxha [mailto:dorian.ho...@gmail.com] Sent: Friday, October 07, 2016 3:48 AM To: user@cassandra.apache.org Subject: Re: Rationale for using Hazelcast in front of Cassandra? Primary-key select

Re: Rationale for using Hazelcast in front of Cassandra?

2016-10-07 Thread Dorian Hoxha
put a cache in front of a cache? > > > > *From:* Dorian Hoxha [mailto:dorian.ho...@gmail.com] > *Sent:* Thursday, October 06, 2016 2:52 PM > *To:* user@cassandra.apache.org > *Subject:* Re: Rationale for using Hazelcast in front of Cassandra? > > > > Maybe when you can

RE: Rationale for using Hazelcast in front of Cassandra?

2016-10-06 Thread KARR, DAVID
? From: Dorian Hoxha [mailto:dorian.ho...@gmail.com] Sent: Thursday, October 06, 2016 2:52 PM To: user@cassandra.apache.org 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

Re: Rationale for using Hazelcast in front of Cassandra?

2016-10-06 Thread Dorian Hoxha
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 wrote: > I've seen use cases that briefly de

Rationale for using Hazelcast in front of Cassandra?

2016-10-06 Thread 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?