I am trying to duplicate data in a cassandra nosql database for a school project using datastax ops center. From what I have read, there is three keywords: cluster, node, and datacenter, and from w...

I am able to see 160 Native clients on a particular node from OpsCenter. But none of the application is pointing to this DC or any of the nodes from this DC. If above is the situtation what are th...

As DataStax will discontinue the OpsCenter (http://docs.datastax.com/en/opscenter/5.2/opsc/opscPolicyChanges.html), which was rather okay for monitoring purposes and the daily management tasks, I'm...

I'm running my own version of cassandra on 127.0.1.1. I changed the rpc_address and also the address to 127.0.1.1. When I'm starting Opscenter I'm prompted to install agents and I'm doing so by the...

When looking at node details in Datastax OpsCenter: We can see that there were 34903422 "native-transport-requests", but 1072 were blocked. Could someone explain what is native transpor...

I created an Apache Cassandra 2.1.2 cluster of 50 nodes. I named the cluster as "Test Cluster", the default. Then for some testing, I separated one node out of the 50 node cluster. I shut down Cass...

I've got a mostly idle (till now) 4 node cassandra cluster that's hooked up with opscenter. There's a table that's had very little writes in the last week or so (test cluster). It's running 2.1.0. ...

Does anyone know how to use Datastax enterprise (using opscenter) in a cluster using amazon ec2 M3.Xlarge machines? When I have tried to use these type of instances (that use ssd) I got the followi...