Creole

Creole is a high-level, Cassandra-specific abstraction for JMX. It aims to provide an automation-friendly alternative to NodeTool.

Quickstart

Build:

$ mvn install
...

Usage (CLI):

$ java -jar cli/target/creole-cli-1.0.0-SNAPSHOT-jar-with-dependencies.jar -H localhost -P 7100 info
{
  "id" : "599dd96a-9325-4f62-bafd-c1731c5ddf9e",
  "version" : "2.1.12-SNAPSHOT",
  "mode" : "NORMAL",
  "gossipActive" : true,
  "thriftActive" : true,
  "load" : "260.12 KB",
  "generationNo" : 1450922283,
  "upTime" : 132302526,
  "heapSize" : 5.1904512E8,
  "heapUsed" : 1.66324744E8,
  "datacenter" : "datacenter1",
  "rack" : "rack1",
  "tokens" : [ "-9213735168323425775", "-9193985466760200741", ... ]
}

Usage (REST API):

 $ java -jar agent/target/creole-agent-1.0.0-SNAPSHOT-jar-with-dependencies.jar localhost 7100
 [Thread-1] INFO org.eclipse.jetty.util.log - Logging initialized @308ms
 [Thread-1] INFO spark.webserver.JettySparkServer - == Spark has ignited ...
 [Thread-1] INFO spark.webserver.JettySparkServer - >> Listening on 0.0.0.0:4567
 [Thread-1] INFO org.eclipse.jetty.server.Server - jetty-9.3.z-SNAPSHOT
 [Thread-1] INFO org.eclipse.jetty.server.ServerConnector - Started ServerConnector@7e047db4{HTTP/1.1,[http/1.1]}{0.0.0.0:4567}
 [Thread-1] INFO org.eclipse.jetty.server.Server - Started @372ms
 ...

...meanwhile, in another terminal:

$ curl -D - http://localhost:4567/v1/info
HTTP/1.1 200 OK
Date: Mon, 28 Dec 2015 22:13:00 GMT
Content-Type: application/json; charset=utf-8
Transfer-Encoding: chunked
Server: Jetty(9.3.z-SNAPSHOT)

{"id":"599dd96a-9325-4f62-bafd-c1731c5ddf9e","version":"2.1.12-SNAPSHOT","mode":"NORMAL","gossipActive":true, ... }