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Apache Ambari User Guide
Apache Ambari User Guide
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Contents
1. Overview: Ambari User Guide
Architecture
Sessions
Accessing Ambari Web
2. Viewing the Ambari Dashboards
Viewing the Cluster Dashboard
Scanning Service Status
Widget Descriptions
Widget Details
Linking to Service UIs
Viewing Cluster-Wide Metrics
Modifying the Cluster Dashboard
Adding a Widget to the Dashboard
Resetting the Dashboard
Customizing Widget Display
Viewing Cluster Heatmaps
3. Managing Hosts
Working with Hosts
Filtering the Hosts List
Performing Host-Level Actions
Viewing Components on a Host
Decommissioning Masters and Slaves
How to Decommission a Component
How to Delete a Component
Deleting a Host from a Cluster
How to Delete a Host from a Cluster
Setting Maintenance Mode
Setting Maintenance Mode for Services, Components, and Hosts
How to Turn On Maintenance Mode for a Service
How to Turn On Maintenance Mode for a Host
How to Turn On Maintenance Mode for a Host (alternative using filtering for hosts)
Maintenance Mode Use Cases
Adding Hosts to a Cluster
Rack Awareness
4. Managing Services
Starting and Stopping All Services
Selecting a Service
Adding a Service
Adding a Service to your Hadoop cluster
Editing Service Config Properties
Viewing Service Summary and Alerts
Alerts and Health Checks
Modifying the Service Dashboard
Adding or Removing a Widget
Creating a Widget
Deleting a Widget
Export Widget Graph Data
Setting Display Timezone
Performing Service Actions
Removing A Service
Monitoring Background Operations
Operations Audit
Using Quick Links
Rolling Restarts
Setting Rolling Restart Parameters
Aborting a Rolling Restart
Managing YARN
Refreshing YARN Capacity Scheduler
Managing HDFS
Rebalancing HDFS
Tuning Garbage Collection
Managing Storm
Managing Apache Atlas
5. Managing Service High Availability
NameNode High Availability
How To Configure NameNode High Availability
How to Roll Back NameNode HA
Stop HBase
Checkpoint the Active NameNode
Stop All Services
Prepare the Ambari Server Host for Rollback
Restore the HBase Configuration
Delete ZooKeeper Failover Controllers
Modify HDFS Configurations
Recreate the secondary NameNode
Re-enable the secondary NameNode
Delete All JournalNodes
Delete the Additional NameNode
Verify the HDFS Components
Start HDFS
ResourceManager High Availability
How to Configure ResourceManager High Availability
How to Disable ResourceManager High Availability
HBase High Availability
Adding an HBase Master Component
Hive High Availability
Adding a Hive Metastore Component
Adding a HiveServer2 Component
Adding a WebHCat Component
Storm High Availability
Adding a Nimbus Component
Oozie High Availability
Adding an Oozie Server Component
Apache Atlas High Availability
6. Managing Configurations
Configuring Services
Updating Service Properties
Restarting Components
Using Host Config Groups
Customizing Log Settings
Downloading Client Configs
Service Configuration Versions
Basic Concepts
Terminology
Saving a Change
Viewing History
Comparing Versions
Reverting a Change
Versioning and Host Config Groups
7. Administering the Cluster
Stack and Versions
Service Accounts
Kerberos
How To Regenerate Keytabs
How To Disable Kerberos
8. Monitoring and Alerts
Managing Alerts
Alert Types
Alert Check Counts
Configuring Notifications
Customizing Notification Templates
List of Predefined Alerts
HDFS Service Alerts
HDFS HA Alerts
NameNode HA Alerts
YARN Alerts
MapReduce2 Alerts
HBase Service Alerts
Hive Alerts
Oozie Alerts
ZooKeeper Alerts
Ambari Alerts
Ambari Metrics Alerts
SmartSense Alerts
9. Using Ambari Core Services
Ambari Metrics
AMS Architecture
Using Grafana
Accessing Grafana
Viewing Grafana Dashboards
Viewing Selected Metrics on Grafana Dashboards
Viewing Metrics for Selected Hosts
HDFS Dashboards
HDFS - Home
HDFS - NameNodes
HDFS - DataNodes
HDFS - Users
YARN Dashboards
YARN - Home
YARN - Applications
YARN - MR JobHistory Server
YARN - NodeManagers
YARN - Queues
YARN - ResourceManager
YARN - TimelineServer
Hive Dashboards
Hive - Home
Hive - HiveMetaStore
Hive - HiveServer2
Hive LLAP Dashboards
Hive LLAP - Heatmap
Hive LLAP - Overview
Hive LLAP - Daemon
HBase Dashboards
HBase - Home
HBase - RegionServers
HBase - Misc
HBase - Tables
HBase - Users
Kafka Dashboards
Kafka - Home
Kafka - Hosts
Kafka - Topics
Storm Dashboards
Storm - Home
Storm - Topology
Storm - Components
System Dashboards
System - Home
System - Servers
NiFi Dashboard
NiFi-Home
Changing the Grafana Admin Password
Set Up HTTPS for Grafana
Performance Tuning
Metrics Collector Modes
Aggregated Metrics TTL Settings
Memory Settings
General Guidelines
Moving the Metrics Collector
(Optional) Enabling Individual Region, Table, and User Metrics for HBase
Ambari Log Search (Technical Preview)
Log Search Architecture
Log Feeder
Log Search Server
Installing Log Search
Using Log Search
Accessing Log Search
Ambari Background Ops Log Search Link
Host Detail Logs Tab
Log Search UI
Using Log Search To Troubleshoot
Viewing Service Logs
Viewing Access Logs
Ambari Infra
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Kafka Dashboards
The following Grafana dashboards are available for Kafka:
Kafka - Home
Kafka - Hosts
Kafka - Topics
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