title: Extract JSON value using Jmeter
body: <p>I have this JSON:</p>
  
  <pre><code>{
    "totalMemory" : 12206567424,
    "totalProcessors" : 4,
    "version" : "0.4.1",
    "agent" : {
      "reconnectRetrySec" : 5,
      "agentName" : "1001",
      "checkRecovery" : false,
      "backPressure" : 10000,
      "throttler" : 100
    },
    "logPath" : "/eq/equalum/eqagent-0.4.1.0-SNAPSHOT/logs",
    "startTime" : 1494837249902,
    "status" : {
      "current" : "active",
      "currentMessage" : null,
      "previous" : "pending",
      "previousMessage" : "Recovery:Starting pipelines"
    },
    "autoStart" : false,
    "recovery" : {
      "agentName" : "1001",
      "partitionInfo" : { },
      "topicToInitialCapturePosition" : { }
    },
    "sources" : [ {
      "dataSource" : "oracle",
      "name" : "oracle_source",
      "captureType" : "directOverApi",
      "streams" : [ ],
      "idlePollingFreqMs" : 100,
      "status" : {
        "current" : "active",
        "currentMessage" : null,
        "previous" : "pending",
        "previousMessage" : "Trying to init storage"
      },
      "host" : "192.168.191.5",
      "metricsType" : { },
      "bulkSize" : 10000,
      "user" : "STACK",
      "password" : "********",
      "port" : 1521,
      "service" : "equalum",
      "heartbeatPeriodInMillis" : 1000,
      "lagObjective" : 1,
      "dataSource" : "oracle"
    } ],
    "upTime" : "157 min, 0 sec",
    "build" : "0-SNAPSHOT",
    "target" : {
      "targetType" : "equalum",
      "agentID" : 1001,
      "engineServers" : "192.168.56.100:9000",
      "kafkaOptions" : null,
      "eventsServers" : "192.168.56.100:9999",
      "jaasConfigurationPath" : null,
      "securityProtocol" : "PLAINTEXT",
      "stateMonitorTopic" : "_state_change",
      "targetType" : "equalum",
      "status" : {
        "current" : "active",
        "currentMessage" : null,
        "previous" : "pending",
        "previousMessage" : "Recovery:Starting pipelines"
      },
      "serializationFormat" : "avroBinary"
    }
  }
  </code></pre>
  
  <p>I trying using Jmeter to extract out the value of agentID, how can I do that using Jmeter, what would be better ? using extractor or json extractor? </p>
  
  <p>what I am trying to do is to extract agentID value in order to use it on another http request sample, but first I have to extract it from this request.</p>
  
  <p>thanks! </p>