Following draft categorization, shows how the CLI commands and responses should be implemented. Grid info:
- args: gmetad host, port, “--gridinfo” /“--summary” - response : summarized clusters: per cluster (name, owner, latitude & longitude, online Nodes, offline Nodes) Cluster info: - args : gmetad host, port, “--clusterinfo -name <cluster name>” (multiple clusters may be there by the same name, in that case all the same name clusters) - response: Cluster name, owner, latitude & longitude, url, local time Total CPUs, Total Disk, Total Memory summarized Nodes : per node (name, IP,location, offline/online, load, memory_free, disk_free) (We can say a particular Node is offline by TN and TMAX value. gmetad, a host is considered offline and is ignored if TN > 4 * TMAX. source: http://entropy.gforge.inria.fr/ganglia.html) TN : TN value is the number of seconds since the metric was last updated TMAX: The maximum time in seconds between gmetric calls Node info: >From Node ID and ip we should be able to get status of a node. I guess OODT “Node Id” and the ganglia "host name" are the same. - args: gmetad host, port, “-nodeId <node id>” - args: gmetad host, port, “-nodeurl <node url>” - response: Node info: Name, IP,(online/offline), reported, location, gmond started, all 32 default metrics + added metrics Suggestions and your advices are warmly welcome. Thank you, Rajith
