Slow Reads in Cassandra with Hadoop

2012-12-06 Thread Ralph Romanos
Hello Cassandra users, I am trying to read and process data in Cassandra using Hadoop. I have a 4-node Cassandra cluster, and an 8-node Hadoop cluster:- 1 Namenode/Jobtracker- 7 Datanodes/Tasktrackers (4 of them are also hosting Cassandra) I am using Cassandra 1.2 beta, Hadoop 0.20.2, java 1.6_u

RE: Problem while streaming SSTables with BulkOutputFormat

2012-10-11 Thread Ralph Romanos
ry, which failed > because the pipe was broken. > > Are there any earlier errors in the logs ? > Did this happen on one of the nodes that has both a task tacker and cassandra > ? > > Cheers > > > On 9/10/2012, at 4:06 AM, Ralph Romanos wrote: > > > He

RE: Problem while streaming SSTables with BulkOutputFormat

2012-10-09 Thread Ralph Romanos
t; > Cheers > > > On 9/10/2012, at 4:06 AM, Ralph Romanos wrote: > > > Hello, > > > > I am using BulkOutputFormat to load data from a .csv file into Cassandra. I > > am using Cassandra 1.1.3 and Hadoop 0.20.2. > > I have 7 hadoop nodes: 1 nam

Problem while streaming SSTables with BulkOutputFormat

2012-10-08 Thread Ralph Romanos
Hello, I am using BulkOutputFormat to load data from a .csv file into Cassandra. I am using Cassandra 1.1.3 and Hadoop 0.20.2.I have 7 hadoop nodes: 1 namenode/jobtracker and 6 datanodes/tasktrackers. Cassandra is installed on 4 of these 6 datanodes/tasktrackers.The issue happens when I have mo