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xzhou
xzhou
Silver ⭐️⭐️
June 23, 2016
Solved

The Definitive HDFS Service Start/Stop Checklist for Cloudera Clusters

In a typical HDFS HA deployment, Zookeeper, ZKFailoverController, DataNodes, NameNodes and JournalNodes, are all installed. What's the best order of starting/stoping these HDFS services to avoid running into services dependency issues?

    namaheshwari
    namaheshwariAnswer
    Gold ⭐️
    July 1, 2016

    You need to follow the below Start order

    • Ranger
    • Knox
    • ZooKeeper
    • HDFS
      • Journal Node
      • Name Node
      • Secondary Name Node
      • Data Node
    • YARN
      • Resource Manager
      • History Server
      • Node Manager
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    4 replies

    KuldeepK
    Gold ⭐️
    KuldeepK
    Gold ⭐️
    June 23, 2016

    Stop order:

    1. Stop Datanodes

    2. Stop Namenodes

    3. Stop ZKs

    4. Stop Journal nodes

    Start Order:

    1. Start ZKs

    2. Start JNs

    3. Start Datanodes

    4. Start NNs

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      sandyy006
      Gold ⭐️
      sandyy006
      Gold ⭐️
      June 23, 2016

      If you are using ambari , It will take care of the sequence. You just need to click on start service and start service.

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        namaheshwari
        namaheshwariAnswer
        Gold ⭐️
        July 1, 2016

        You need to follow the below Start order

        • Ranger
        • Knox
        • ZooKeeper
        • HDFS
          • Journal Node
          • Name Node
          • Secondary Name Node
          • Data Node
        • YARN
          • Resource Manager
          • History Server
          • Node Manager
        Translate
          xzhou
          xzhouAuthor
          Silver ⭐️⭐️
          July 8, 2016

          Thank you all for the answers.

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