Re: Practical limit on number of column families

Eric, Is the keyspace as a multitenancy solution as bad as the many tables pattern? Is the memory overhead of keyspaces as heavy as that of tables? Cheers, Brian On Tuesday, March 1, 2016, Eric Stevens wrote: > It's definitely not true for every use case of a large number

Re: issue in starting cassandra service on mac--plz help

How did you install Cassandra and what JVM sre you using? On Saturday, August 22, 2015, Gop Krr gop@gmail.com wrote: Hi Guys, Have you seen this issue before? Exception in thread main java.lang.NoClassDefFoundError: com/google/inject/AbstractModule at

Re: Cassandra crashes daily; nothing on the log

Berk, 1 GB is not enough to run C*, the minimum memory we use on Digital Ocean is 4GB. Cheers, Brian http://integrallis.com On Sat, Jun 6, 2015 at 10:50 AM, graffit...@yahoo.com wrote: Hi all, I've installed Cassandra on a test server hosted on Digital Ocean. The server has 1GB RAM, and

Re: Is 2.1.5 ready for upgrade?

Robert, Can you elaborate more please? Cheers, Brian On Tuesday, April 21, 2015, Robert Coli rc...@eventbrite.com wrote: On Tue, Apr 21, 2015 at 2:25 PM, Dikang Gu dikan...@gmail.com javascript:_e(%7B%7D,'cvml','dikan...@gmail.com'); wrote: We have some issues with streaming in 2.1.2. We

Re: how to make unique constraints in cassandra

As far as I know there is no such thing. You could make that value a single PK for the table therefore guaranteeing uniqueness and check on insert with `IF NOT EXISTS` to prevent dups. Of course that works just for one value, if you have multiple values a compound PK will still let dups in for a

Re: how to make unique constraints in cassandra

a key that is a compound of name+phone+address. If the system needs to perform updates, the key needs to be immutable so that queries won't fail. On Sat, Feb 28, 2015 at 10:18 AM, Brian Sam-Bodden bsbod...@integrallis.com wrote: As far as I know there is no such thing. You could make

Re: Using Cassandra for geospacial search

wrote: Using Cassandra triggers is generally a fairly dangerous proposition, and generally not recommended.It's probably a better idea to load your search data with a separate process. On Mon, Jan 26, 2015 at 11:42 AM, Brian Sam-Bodden bsbod...@integrallis.com wrote: I did an little

Re: Using Cassandra for geospacial search

I did an little experiment with a Geohash/Geocells https://github.com/integrallis/geomodel (a poor port of a Python Geohash librairy) and using Cassandra in a demo using public schools data here https://github.com/integrallis/geomodel-cassandra-demo My conclusions is that you can use the Geohash

Re: Cassandra schema migrator

There is also https://github.com/hsgubert/cassandra_migrations On Fri, Dec 5, 2014 at 7:49 AM, Ben Hood 0x6e6...@gmail.com wrote: On Tue, Nov 25, 2014 at 12:49 PM, Phil Wise p...@advancedtelematic.com wrote: https://github.com/advancedtelematic/cql-migrate Great to see these tools out