Re: Need ur expertise on Cassandra issue!!

2014-01-18 Thread chandra Varahala
Hello, How many cassandra nodes you have in the cluster ? when you run MR from hadoop, how many Mappers/Reducers it is creating ? I had same kind of issue before ... thanks chandra On Thu, Jan 16, 2014 at 11:00 PM, Aaron Morton wrote: > Look at the logs for the cassandra servers, are node

Re: Need ur expertise on Cassandra issue!!

2014-01-16 Thread Aaron Morton
Look at the logs for the cassandra servers, are nodes going down ? Are there any other errors ? Check for log messages about GCInspector, if there is a lot of GC nodes will start to flap up and down. It sounds like there is stability issue with cassandra, look there first to make sure it is a

Need ur expertise on Cassandra issue!!

2014-01-11 Thread Arun
Hi , I need your help & suggestions for our production issue. Details: -- we have 40 CF's in cassandra cluster for each datasource like below MusicData--Keyspace spotify_1-column family-Active spotify_2-column family-standby Daily we load data into this cluster using as below proc