[{
  "schema" : { "dataSource":"randseq",
               "aggregators":[ {"type":"count", "name":"events"},
	       		       {"type":"doubleSum","name":"outColumn","fieldName":"inColumn"} ],
               "indexGranularity":"minute",
	       "shardSpec" : { "type": "none" } },
  "config" : { "maxRowsInMemory" : 50000,
               "intermediatePersistPeriod" : "PT2m" },
 
  "firehose" : { "type" : "rand",
                 "sleepUsec": 100000,
                 "maxGeneratedRows" : 5000000,
                 "seed" : 0,
                 "nTokens" : 19,
                 "nPerSleep" : 3
                },

  "plumber" : { "type" : "realtime",
                "windowPeriod" : "PT5m",
                "segmentGranularity":"hour",
                "basePersistDirectory" : "/tmp/realtime/basePersist" }
}]