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using_the_apache_ambari_cluster_manager [2021/01/02 21:17] deadline added basic content |
using_the_apache_ambari_cluster_manager [2021/05/19 16:35] (current) brandonm [Shutting Down The Cluster] Spelling, spacing, punctuation, word, and case fixes |
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====Introduction==== | ====Introduction==== | ||
- | The Ambari web based tool can be started opening a browser on the head node and entering [[http:/ | + | The Ambari web-based tool can be started opening a browser on the head node and entering [[ http:// |
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- | The left side menu allows the values services and nodes of the cluster to be viewed. An example of the the HDFS (Hadoop Distributed File System) is shown in the following figure: | + | The left side menu allows the values, services and nodes of the cluster to be viewed. An example of the the HDFS (Hadoop Distributed File System) is shown in the following figure: |
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====Basic Background==== | ====Basic Background==== | ||
- | The Limulus Hadoop design requires that the headnode | + | The Limulus Hadoop design requires that the head node (login node) and n0 operate |
Additional content to be available soon. | Additional content to be available soon. | ||
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+ | ====Service Start-Up==== | ||
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+ | Ambari has been configured to start all the cluster services when the system starts. [**Note: The Auto Start feature is not currently working. To start all the services, log into the Ambari interface (http:// | ||
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+ | ====Shutting Down The Cluster==== | ||
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+ | Best practices dictate that all the Hadoop services are shut down gracefully. Ambari provides a full system shutdown option. Click the three dots next to '' | ||
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+ | Once the Hadoop daemons are totally shut down, the progress screen will show completion (green means no issues). The dashboard should look like the following image. | ||
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+ | **FINAL STEP:** After all the services are stopped, the entire cluster may be powered off by shutting down the head node (nodes gracefully shut down when the head node is powered off using the '' | ||
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