Re: Multi-type column values in single CF

2011-07-04 Thread Silvère Lestang
We do pretty much the same thing here, dynamic column with a timestamp for column name and a different value type for each row. We use the serialization/deserialization classes provided with Hector and store the type of the value in the key of the row. Example of row key: "b6c8a1e7281761e62230ea76d

Issues with MapReduce Job (using Brisk)

2011-05-31 Thread Silvère Lestang
Hi, I try to create a MapReduce job that calculate the average of values stored in cassandra and write the result back to cassandra (using ColumnFamilyOutputFormat and ColumnFamilyInputFormat). I use the Brisk distribution of Hadoop but I don't know if it's somehow related. My code is here: http://