ambari/ambari-web/app/assets/data/stack_versions/upgrade_item.json

{
  "UpgradeItem" : {
    "cluster_name" : "c1",
    "group_id" : 1,
    "request_id" : 5,
    "stage_id" : 1
  },
  "tasks" : [
    {
      "Tasks" : {
        "attempt_cnt" : 1,
        "cluster_name" : "c1",
        "command" : "EXECUTE",
        "command_detail" : "Before continuing, please backup the Hive Metastore database located on the following host(s): perf-400-25feb-b-5.c.pramod-thangali.internal.  During the upgrade process, you will be instructed when it is time to upgrade the Hive Metastore database. ...",
        "custom_command_name" : "org.apache.ambari.server.serveraction.upgrades.ManualStageAction",
        "end_time" : -1,
        "error_log" : "/var/lib/ambari-agent/data/errors-15578.txt",
        "exit_code" : 0,
        "host_name" : "perf-400-25feb-c-193.c.pramod-thangali.internal",
        "id" : 15578,
        "output_log" : "/var/lib/ambari-agent/data/output-15578.txt",
        "request_id" : 5,
        "role" : "AMBARI_SERVER_ACTION",
        "stage_id" : 1,
        "start_time" : 1424961934089,
        "status" : "COMPLETED",
        "stderr" : "",
        "stdout" : ""
      }
    }
  ]
}