Anthony, We use a number of tools to manage our Cassandra cluster.
* Datastax OpsCenter [0] for at a glance information, and trending statistics. You can also run operations through here, though I prefer to use nodetool for any mutative operation. * nodetool for ad hoc status checks, and day-to-day node management. * puppet for setup and initialization > For example, if I want to make some changes to the configuration file that > resides on each node, is there a tool that will propagate the change to each > node? For this, we use puppet to manage any changes to the configurations (which are stored in git). We initially had Cassandra auto-restart when the configuration changed, but you might not want the node to automatically join a cluster, so we turned this off. > Another example is if I want to have a rolling repair (nodetool repair -pr) > and clean up running on my cluster, is there a tool that will help > manage/configure that? Multiple commands to the cluster are sent via clusterssh [1] (cssh for OS X). I can easily choose which nodes to control, and run those in sync. For any rolling procedures, we send commands one at a time, though we've considered sending some of these tasks to cron. Hope this helps. Cheers, Patricia [0] http://planetcassandra.org/Download/DataStaxCommunityEdition [1] http://sourceforge.net/projects/clusterssh/
