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Apache Ambari User Guide
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  • Contents
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  • 1. Overview: Ambari User Guide
    • 1. Architecture
      • 1.1. Sessions
    • 2. Accessing Ambari Web
  • 2. Viewing the Ambari Dashboards
    • 1. Viewing the Cluster Dashboard
      • 1.1. Scanning Service Status
      • 1.2. Widget Descriptions
      • 1.3. Widget Details
      • 1.4. Linking to Service UIs
      • 1.5. Viewing Cluster-Wide Metrics
    • 2. Modifying the Cluster Dashboard
      • 2.1. Adding a Widget to the Dashboard
      • 2.2. Resetting the Dashboard
      • 2.3. Customizing Widget Display
    • 3. Viewing Cluster Heatmaps
  • 3. Managing Hosts
    • 1. Working with Hosts
    • 2. Filtering the Hosts List
    • 3. Performing Host-Level Actions
    • 4. Viewing Components on a Host
    • 5. Decommissioning Masters and Slaves
      • 5.1. How to Decommission a Component
    • 6. How to Delete a Component
    • 7. Deleting a Host from a Cluster
      • 7.1. How to Delete a Host from a Cluster
    • 8. Setting Maintenance Mode
      • 8.1. Setting Maintenance Mode for Services, Components, and Hosts
      • 8.2. How to Turn On Maintenance Mode for a Service
      • 8.3. How to Turn On Maintenance Mode for a Host
      • 8.4. How to Turn On Maintenance Mode for a Host (alternative using filtering for hosts)
      • 8.5. Maintenance Mode Use Cases
    • 9. Adding Hosts to a Cluster
    • 10. Rack Awareness
  • 4. Managing Services
    • 1. Starting and Stopping All Services
    • 2. Selecting a Service
    • 3. Adding a Service
      • 3.1. Adding a Service to your Hadoop cluster
    • 4. Editing Service Config Properties
    • 5. Viewing Service Summary and Alerts
      • 5.1. Alerts and Health Checks
      • 5.2. Modifying the Service Dashboard
        • 5.2.1. Adding or Removing a Widget
        • 5.2.2. Creating a Widget
        • 5.2.3. Deleting a Widget
        • 5.2.4. Export Widget Graph Data
        • 5.2.5. Setting Display Timezone
    • 6. Performing Service Actions
    • 7. Removing A Service
    • 8. Monitoring Background Operations
    • 9. Using Quick Links
    • 10. Rolling Restarts
      • 10.1. Setting Rolling Restart Parameters
      • 10.2. Aborting a Rolling Restart
    • 11. Managing YARN
      • 11.1. Refreshing YARN Capacity Scheduler
    • 12. Managing HDFS
      • 12.1. Rebalancing HDFS
      • 12.2. Tuning Garbage Collection
    • 13. Managing Storm
    • 14. Managing Apache Atlas
  • 5. Managing Service High Availability
    • 1. NameNode High Availability
      • 1.1. How To Configure NameNode High Availability
      • 1.2. How to Roll Back NameNode HA
        • 1.2.1. Stop HBase
        • 1.2.2. Checkpoint the Active NameNode
        • 1.2.3. Stop All Services
        • 1.2.4. Prepare the Ambari Server Host for Rollback
        • 1.2.5. Restore the HBase Configuration
        • 1.2.6. Delete ZooKeeper Failover Controllers
        • 1.2.7. Modify HDFS Configurations
        • 1.2.8. Recreate the secondary NameNode
        • 1.2.9. Re-enable the secondary NameNode
        • 1.2.10. Delete All JournalNodes
        • 1.2.11. Delete the Additional NameNode
        • 1.2.12. Verify the HDFS Components
        • 1.2.13. Start HDFS
    • 2. ResourceManager High Availability
      • 2.1. How to Configure ResourceManager High Availability
      • 2.2. How to Disable ResourceManager High Availability
    • 3. HBase High Availability
      • 3.1. Adding an HBase Master Component
    • 4. Hive High Availability
      • 4.1. Adding a Hive Metastore Component
      • 4.2. Adding a HiveServer2 Component
      • 4.3. Adding a WebHCat Component"?>
    • 5. Storm High Availability
      • 5.1. Adding a Nimbus Component
    • 6. Oozie High Availability
      • 6.1. Adding an Oozie Server Component
    • 7. Apache Atlas High Availability
  • 6. Managing Configurations
    • 1. Configuring Services
      • 1.1. Updating Service Properties
      • 1.2. Restarting Components
    • 2. Using Host Config Groups
    • 3. Customizing Log Settings
    • 4. Downloading Client Configs
    • 5. Service Configuration Versions
      • 5.1. Basic Concepts
      • 5.2. Terminology
      • 5.3. Saving a Change
      • 5.4. Viewing History
      • 5.5. Comparing Versions
      • 5.6. Reverting a Change
      • 5.7. Versioning and Host Config Groups
  • 7. Administering the Cluster
    • 1. Stack and Versions
    • 2. Service Accounts
    • 3. Kerberos
      • 3.1. How To Regenerate Keytabs
      • 3.2. How To Disable Kerberos
  • 8. Monitoring and Alerts
    • 1. Managing Alerts
      • 1.1. Alert Types
      • 1.2. Alert Check Counts
    • 2. Configuring Notifications
      • 2.1. Customizing Notification Templates
    • 3. List of Predefined Alerts
      • 3.1. HDFS Service Alerts
      • 3.2. HDFS HA Alerts
      • 3.3. NameNode HA Alerts
      • 3.4. YARN Alerts
      • 3.5. MapReduce2 Alerts
      • 3.6. HBase Service Alerts
      • 3.7. Hive Alerts
      • 3.8. Oozie Alerts
      • 3.9. ZooKeeper Alerts
      • 3.10. Ambari Alerts
      • 3.11. Ambari Metrics Alerts
  • 9. Using Ambari Core Services
    • 1. Ambari Metrics
      • 1.1. AMS Architecture
      • 1.2. Using Grafana
        • 1.2.1. Accessing Grafana
        • 1.2.2. Viewing Grafana Dashboards
        • 1.2.3. Viewing Selected Metrics on Grafana Dashboards
        • 1.2.4. Viewing Metrics for Selected Hosts
        • 1.2.5. HDFS Dashboards
          • 1.2.5.1. HDFS - Home
          • 1.2.5.2. HDFS - NameNodes
          • 1.2.5.3. HDFS - DataNodes
          • 1.2.5.4. HDFS - Users
        • 1.2.6. YARN Dashboards
          • 1.2.6.1. YARN - Home
          • 1.2.6.2. YARN - Applications
          • 1.2.6.3. YARN - MR JobHistory Server
          • 1.2.6.4. YARN - NodeManagers
          • 1.2.6.5. YARN - Queues
          • 1.2.6.6. YARN - ResourceManager
          • 1.2.6.7. YARN - TimelineServer
        • 1.2.7. Hive Dashboards
          • 1.2.7.1. Hive - Home
          • 1.2.7.2. Hive - HiveMetaStore
          • 1.2.7.3. Hive - HiveServer2
        • 1.2.8. Hive LLAP Dashboards
          • 1.2.8.1. Hive LLAP - Heatmap
          • 1.2.8.2. Hive LLAP - Overview
          • 1.2.8.3. Hive LLAP - Daemon
        • 1.2.9. HBase Dashboards
          • 1.2.9.1. HBase - Home
          • 1.2.9.2. HBase - RegionServers
          • 1.2.9.3. HBase - Misc
          • 1.2.9.4. HBase - Tables
          • 1.2.9.5. HBase - Users
        • 1.2.10. Kafka Dashboards
          • 1.2.10.1. Kafka - Home
          • 1.2.10.2. Kafka - Hosts
          • 1.2.10.3. Kafka - Topics
        • 1.2.11. Storm Dashboards
          • 1.2.11.1. Storm - Home
          • 1.2.11.2. Storm - Topology
          • 1.2.11.3. Storm - Components
        • 1.2.12. System Dashboards
          • 1.2.12.1. System - Home
          • 1.2.12.2. System - Servers
        • 1.2.13. NiFi Dashboard
          • 1.2.13.1. NiFi-Home
        • 1.2.14. Changing the Grafana Admin Password
        • 1.2.15. Set Up HTTPS for Grafana
      • 1.3. Performance Tuning
        • 1.3.1. Metrics Collector Modes
        • 1.3.2. Aggregated Metrics TTL Settings
        • 1.3.3. Memory Settings
        • 1.3.4. General Guidelines
      • 1.4. Moving the Metrics Collector
      • 1.5. (Optional) Enabling Individual Region, Table, and User Metrics for HBase
    • 2. Ambari Log Search (Technical Preview)
      • 2.1. Log Search Architecture
        • 2.1.1. Log Feeder
        • 2.1.2. Log Search Server
      • 2.2. Installing Log Search
      • 2.3. Using Log Search
        • 2.3.1. Accessing Log Search
          • 2.3.1.1. Ambari Background Ops Log Search Link
          • 2.3.1.2. Host Detail Logs Tab
          • 2.3.1.3. Log Search UI
        • 2.3.2. Using Log Search To Troubleshoot
        • 2.3.3. Viewing Service Logs
        • 2.3.4. Viewing Access Logs
    • 3. Ambari Infra
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​1.2.6. YARN Dashboards

The following Grafana dashboards are available for YARN:

  • YARN - Home

  • YARN - Applications

  • YARN - MR JobHistory Server

  • YARN - NodeManagers

  • YARN - Queues

  • YARN - ResourceManager

  • YARN - TimelineServer

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