database cassandra

I'm looking to implement a system that searches for duplicate entries before saving new entries, mostly by IP address. Since NoSQL databases have…

Is there a way to catch a connection error when using pelops in Java? I have the following code but for some reason, I'm not getting to my catch…

Hi there, I'm looking at NoSQL for extremely high volumes of data. We're storing cached versions of webpage text in MySQL at the moment, but it…

I'm working on a real-time advertising platform with a heavy emphasis on performance. I've always developed with MySQL, but I'm open to trying…

We're using Cassandra for data store, but want to migrate data out of Cassandra and into MySQL on a daily basis so that marketing/product users can…

Hi, I'd like to know if this: $column_family->get('row_key', $columns=array('name1', 'name2')); Is faster then the more flexible get i now use:…

I'm fairly new to cassandra but i have making good progress so far. $conn = new ConnectionPool('Cluster'); $User = new ColumnFamily($conn, 'User');…

What are smart / handy things to log /statistics for a social networking site? Things i came up with: user logins (timestamp + user id) failed user…

Hi there! When must Cassandra be restarted? for what operations? Anyone got something like a list? for example: - when changing a column family…

I use sstable2json to backup data which system is running. The source file is 57M,but process the sstable2json for 2 hours still not finish. Target…

Hello all! I've got a rather tricky one, bear with me as I try not to stumble over my words here. I'm doing some research, and my group is…

On this video (at 29:00), Eric Evans from Rackspace tells an audience that using Thrift and Avro is a bad idea. Instead, he advocates using the…

Cassandra uses a timestamp system to serve up the most recent records. How do I display a list of all values & timestamps for a particular…

I've started learning using Django with Cassandra. I will develop many websites on Cassandra, since I need the scalability (If start with Cassandra…

I am building an application in Java. My database ( Cassandra ) understands only byte[] as data. Thus I am free to choose among the several…

[Hi, I asked this question in the morning but could not get any response or feedback from the community..I would like to bring it up to really get…

I am working on an web-application using Java and backed by Cassandra-a NoSQL database. Cassandra allows for highly concurrent database operations…

Hii there, My question is related to Groups in a forum, very much similar to the LinkedIn Groups. How would you store the list of all users in a…

What NoSQL architecture would you use for application like Google Reader (one to one copy)? I consider MongoDB, Cassandra, CouchDB, Redis, HBase and…

We are using a mysql database w/ about 150,000 records (names) total. Our searches on the 'names' field is done through an autocomplete function in…