A few hours ago I had to install DataStax OpsCenter from the DataStax (community) repository on a new installation of Ubuntu 14.04. DataStax OpsCenter is a browser-based management application for DataStax Enterprise, DataStax Community and Apache Cassandra, a distributed NoSQL database.
Hadoop and Big Data have made a lot of headlines in 2013, but the adoption of Big Data solutions based on open source technologies—including the recently released Hadoop 2.0 platform—for the enterprise remains slow.
I am new to Datastax cassandra. While going through the installation procedure of cassandra. It is recommended that the swap area of OS should be turned off. Does anyone provide the reason for that? Will it affect any OS level operations ?
I've been using the DataStax OpsCenter (Enterprise) 5.0.0 REST API with DSE 4.5.1 (Cassandra 2.0.9) to query the /$cluster_name/nodes endpoint and see the last_seen field for the number of seconds since each given node was seen to see if I can detect down nodes via DataStax OpsCenter's API.
Hadoop, the open source Big Data platform, has taken another step forward into the world of business information management (BIM) and analytics through a new partnership between Cloudera and Capgemini.
Open source Big Data vendor Talend has rolled out version 5.5 of its data integration platform. And speed is the headlining feature of this new release, which promises Hadoop performance increases of 45 percent.