public String toString() {
      return "{execId: " + execId + ", hostPort:" + hostPort + " , rddBlocks: " + rddBlocks + ", memUsed: " + memUsed
          + ", maxMem: " + maxMem + ", diskUsed: " + diskUsed + ", totalTasks" + totalTasks + ", tasksActive: "
          + activeTasks + ", tasksComplete: " + completedTasks + ", tasksFailed: " + failedTasks + ", duration: "
          + duration + ", inputBytes: " + inputBytes + ", outputBytes:" + outputBytes + ", shuffleRead: " + shuffleRead
          + ", shuffleWrite: " + shuffleWrite + ", totalGCTime: " + totalGCTime + "}";
    }
This class contains Spark executor information.
app/com/linkedin/drelephant/spark/legacydata/SparkExecutorData.java