Re: Storing files in Cassandra with Spring Data / Astyanax

2014-11-05 Thread Wim Deblauwe
you're incurring an awful lot of overhead for what amounts > to a file lookup. > > On Wed, Nov 5, 2014 at 8:19 AM, Wim Deblauwe > wrote: > >> Hi, >> >> I am currently testing with Cassandra and Spring Data Cassandra. I would >> now need to store files (

Storing files in Cassandra with Spring Data / Astyanax

2014-11-05 Thread Wim Deblauwe
Hi, I am currently testing with Cassandra and Spring Data Cassandra. I would now need to store files (images and avi files, normally up to 50 Mb big). I did find the Chuncked Object store from Astyanax which looks promising. However

Re: Why is yum pulling in open JDK ?

2014-07-06 Thread Wim Deblauwe
Hi, I am very aware that Cassandra needs Java. I was just wondering why 'openjdk' is the dependency while it is advised to use the Oracle Java. regards, Wim 2014-07-06 21:54 GMT+02:00 Patricia Gorla : > Wim, > > > openjdk > > Java is a dependency of Cassandra, so if you do not have Java alrea

Why is yum pulling in open JDK ?

2014-07-04 Thread Wim Deblauwe
Hi, When I install cassandra on CentOS via yum, I see it also installs openjdk. Why is that? Given that it is adviced in the documentation to use Oracle JRE? See http://www.datastax.com/documentation/cassandra/2.0/cassandra/install/installRHEL_t.html ? Also, what is the difference between using

Re: Primary key question

2014-07-01 Thread Wim Deblauwe
make things more > debuggable. The flip side is that your cluster could be slightly more > unbalanced if each message_source_id has a varied number of > `integration_time`s. > > Just an idea, > Jens > > > On Tue, Jul 1, 2014 at 8:37 AM, Wim Deblauwe > wr

Primary key question

2014-06-30 Thread Wim Deblauwe
Hi, I have the following table: CREATE TABLE integration_time ( message_source_id uuid, traffic_data_type varchar, integration_period varchar, integration_time timestamp, PRIMARY KEY ((message_source_id,traffic_data_type,integration_period)) ); I want the combination of (message_source_id, traff

Re: Best way to delete by day?

2014-06-30 Thread Wim Deblauwe
possible right now to be notified on the > client side when an expiring column (column with TTL) is physically removed > by Cassandra > > > > > On Mon, Jun 30, 2014 at 9:59 AM, Wim Deblauwe > wrote: > >> Hi, >> >> I am getting started with Cassandra (coming

Best way to delete by day?

2014-06-30 Thread Wim Deblauwe
Hi, I am getting started with Cassandra (coming from MySQL). I have made a table with timeseries data (inspired on http://planetcassandra.org/blog/post/getting-started-with-time-series-data-modeling/ ). The table looks like this: CREATE TABLE event_message ( message_id uuid, message_source_id uu