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Cloudera Enterprise 5.3.x | Other versions

Cloudera AdministrationHigh Availability
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  • Cloudera Introduction
    • CDH Overview
      • Cloudera Impala Overview
      • Cloudera Search Overview
        • Cloudera Search and Other Cloudera Components
    • Cloudera Manager 5 Overview
      • Cloudera Manager Admin Console
        • Starting and Logging into the Admin Console
        • Cloudera Manager Admin Console Home Page
      • Cloudera Manager API
        • Using the Cloudera Manager Java API for Cluster Automation
      • Extending Cloudera Manager
      • Cloudera Manager 5 Frequently Asked Questions
    • Cloudera Navigator 2 Overview
      • Cloudera Navigator UI
      • Cloudera Navigator API
      • Cloudera Navigator 2 Frequently Asked Questions
    • Frequently Asked Questions About Cloudera Software
    • Getting Support
  • Cloudera Release Notes
  • Cloudera QuickStart
    • Cloudera QuickStart VM
      • QuickStart VM Software Versions and Documentation
      • QuickStart VM Administrative Information
    • Cloudera Manager and CDH QuickStart Guide
    • CDH 5 QuickStart Guide
      • Before You Install CDH 5 on a Single Node
      • Installing CDH 5 on a Single Linux Node in Pseudo-distributed Mode
        • MapReduce 2.0 (YARN)
        • Installing CDH 5 with MRv1 on a Single Linux Host in Pseudo-distributed mode
        • Installing CDH 5 with YARN on a Single Linux Node in Pseudo-distributed mode
        • Components That Require Additional Configuration
        • Next Steps After QuickStart
    • Cloudera Search Quick Start Guide
      • Prerequisites for Cloudera Search QuickStart Scenarios
      • Load and Index Data in Search
      • Using Search to Query Loaded Data
  • Installation Guide
    • Installation Requirements for Cloudera Manager, Cloudera Navigator, and CDH 5
      • Cloudera Manager 5 Requirements and Supported Versions
        • Single User Mode Requirements
      • Permission Requirements for Package-based Installations and Upgrades of CDH
      • Cloudera Navigator 2 Requirements and Supported Versions
      • CDH 5 Requirements and Supported Versions
      • Supported Configurations with Virtualization and Cloud Platforms
      • Ports
        • Ports Used by Cloudera Manager and Cloudera Navigator
        • Ports Used by Components of CDH 5
        • Ports Used by Impala
        • Ports Used by Cloudera Search
        • Ports Used by Third-Party Components
    • Installing Cloudera Manager and CDH
      • Java Development Kit Installation
      • Installing Cloudera Manager, CDH, and Managed Services
        • Cloudera Manager and Managed Service Data Stores
          • Embedded PostgreSQL Database
          • External PostgreSQL Database
          • MySQL Database
          • Oracle Database
          • Backing Up Databases
          • Data Storage for Monitoring Data
          • Storage Space Planning for Cloudera Manager
        • Managing Software Installation
          • Parcels
          • Migrating from Packages to Parcels
          • Migrating from Parcels to Packages
        • Installation Path A - Automated Installation by Cloudera Manager
        • Installation Path B - Manual Installation Using Cloudera Manager Packages
        • Installation Path C - Manual Installation Using Cloudera Manager Tarballs
        • Installing Impala
        • Installing Search
        • Installing Spark
        • Installing KMS (Navigator Key Trustee)
        • Installing GPL Extras
        • Understanding Custom Installation Solutions
          • Creating and Using a Parcel Repository for Cloudera Manager
          • Creating and Using a Package Repository for Cloudera Manager
          • Configuring a Custom Java Home Location
          • Installing Older Versions of Cloudera Manager 5
        • Deploying Clients
        • Testing the Installation
        • Uninstalling Cloudera Manager and Managed Software
        • Uninstalling a CDH Component From a Single Host
      • Installing Cloudera Navigator
      • Installing and Deploying CDH Using the Command Line
        • Before You Install CDH 5 on a Cluster
        • Creating a Local Yum Repository
        • Installing the Latest CDH 5 Release
        • Installing an Earlier CDH 5 Release
        • CDH 5 and MapReduce
        • Migrating from MapReduce 1 (MRv1) to MapReduce 2 (MRv2, YARN)
        • Tuning YARN
        • Deploying CDH 5 on a Cluster
          • Configuring Network Names
          • Deploying HDFS on a Cluster
          • Deploying MapReduce v2 (YARN) on a Cluster
          • Deploying MapReduce v1 (MRv1) on a Cluster
          • Configuring the Daemons to Start on Boot
        • Installing CDH 5 Components
          • Crunch Installation
            • Crunch Prerequisites
            • Crunch Packaging
            • Installing and Upgrading Crunch
            • Crunch Documentation
          • Flume Installation
            • Upgrading Flume
            • Flume Packaging
            • Installing the Flume Tarball
            • Installing the Flume RPM or Debian Packages
            • Flume Configuration
            • Verifying the Flume Installation
            • Running Flume
            • Files Installed by the Flume RPM and Debian Packages
            • Supported Sources, Sinks, and Channels
            • Using an On-disk Encrypted File Channel
            • Viewing the Flume Documentation
          • HBase Installation
            • New Features and Changes for HBase in CDH 5
            • Upgrading HBase
            • Installing HBase
            • Configuration Settings for HBase
              • Configuring the HBase BlockCache
            • Starting HBase in Standalone Mode
            • Configuring HBase in Pseudo-Distributed Mode
            • Deploying HBase on a Cluster
            • Accessing HBase by using the HBase Shell
            • HBase Online Merge
            • Using MapReduce with HBase
            • Troubleshooting HBase
            • Viewing the HBase Documentation
          • HCatalog Installation
            • HCatalog Prerequisites
            • Installing and Upgrading the HCatalog RPM or Debian Packages
            • Configuration Change on Hosts Used with HCatalog
            • Starting and Stopping the WebHCat REST server
            • Accessing Table Information with the HCatalog Command-line API
            • Accessing Table Data with MapReduce
            • Accessing Table Data with Pig
            • Accessing Table Information with REST
            • Viewing the HCatalog Documentation
          • Impala Installation
            • Requirements
            • Installing Impala without Cloudera Manager
            • Upgrading Impala
            • Starting Impala
              • Modifying Impala Startup Options
          • Hive Installation
            • About Hive
            • Upgrading Hive
            • Installing Hive
            • Configuring the Hive Metastore
            • Configuring HiveServer2
            • Starting the Metastore
            • File System Permissions
            • Starting, Stopping, and Using HiveServer2
            • Starting HiveServer1 and the Hive Console
            • Using Hive with HBase
            • Using the Hive Schema Tool
            • Installing the Hive JDBC on Clients
            • Setting HADOOP_MAPRED_HOME
            • Configuring the Metastore to use HDFS High Availability
            • Troubleshooting Hive
            • Viewing the Hive Documentation
          • HttpFS Installation
            • About HttpFS
            • HttpFS Packaging
            • HttpFS Prerequisites
            • Installing HttpFS
            • Configuring HttpFS
            • Starting the HttpFS Server
            • Stopping the HttpFS Server
            • Using the HttpFS Server with curl
          • Hue Installation
            • Supported Browsers for Hue
            • Upgrading Hue
            • Installing Hue
            • Configuring CDH Components for Hue
            • Hue Configuration
            • Administering Hue
              • Hue Database
            • Viewing the Hue User Guide
          • KMS Installation
          • Mahout Installation
            • Upgrading Mahout
            • Installing Mahout
            • The Mahout Executable
            • Getting Started with Mahout
            • Viewing the Mahout Documentation
          • Oozie Installation
            • About Oozie
            • Oozie Packaging
            • Oozie Prerequisites
            • Upgrading Oozie
            • Installing Oozie
            • Configuring Oozie
            • Starting, Stopping, and Accessing the Oozie Server
            • Viewing the Oozie Documentation
          • Pig Installation
            • Upgrading Pig
            • Installing Pig
            • Using Pig with HBase
            • Installing DataFu
            • Viewing the Pig Documentation
          • Search Installation
            • Preparing to Install Cloudera Search
              • Choosing Where to Deploy the Cloudera Search Processes
              • Guidelines for Deploying Cloudera Search
            • Installing Cloudera Search
              • Installing Cloudera Search without Cloudera Manager
              • Deploying Cloudera Search
              • Installing the Spark Indexer
              • Installing MapReduce Tools for use with Cloudera Search
              • Installing the Lily HBase Indexer Service
            • Upgrading Cloudera Search
            • Installing Hue Search
              • Updating Hue Search
          • Sentry Installation
          • Snappy Installation
            • Upgrading Snappy
            • Installing Snappy
            • Using Snappy for MapReduce Compression
            • Using Snappy for Pig Compression
            • Using Snappy for Hive Compression
            • Using Snappy Compression in Sqoop 1 and Sqoop 2 Imports
            • Using Snappy Compression with HBase
            • Viewing the Snappy Documentation
          • Spark Installation
            • Spark Packaging
            • Spark Prerequisites
            • Installing and Upgrading Spark
            • Configuring and Running Spark (Standalone Mode)
            • Running Spark Applications
            • Running a Crunch Application with Spark
          • Sqoop 1 Installation
            • Upgrading Sqoop 1 from an Earlier CDH 5 release
            • Sqoop 1 Packaging
            • Sqoop 1 Prerequisites
            • Installing the Sqoop 1 RPM or Debian Packages
            • Installing the Sqoop 1 Tarball
            • Installing the JDBC Drivers for Sqoop 1
            • Setting HADOOP_MAPRED_HOME
            • Viewing the Sqoop 1 Documentation
          • Sqoop 2 Installation
            • Upgrading Sqoop 2 from an Earlier CDH 5 Release
            • Installing Sqoop 2
            • Configuring Sqoop 2
            • Starting, Stopping, and Accessing the Sqoop 2 Server
            • Viewing the Sqoop 2 Documentation
            • Feature Differences - Sqoop 1 and Sqoop 2
          • Whirr Installation
            • Upgrading Whirr
            • Installing Whirr
            • Generating an SSH Key Pair for Whirr
            • Defining a Whirr Cluster
            • Managing a Cluster with Whirr
            • Viewing the Whirr Documentation
          • ZooKeeper Installation
            • Upgrading ZooKeeper from an Earlier CDH 5 Release
            • Installing the ZooKeeper Packages
            • Maintaining a ZooKeeper Server
            • Viewing the ZooKeeper Documentation
          • Avro Usage
            • Avro Data Files
            • Compression for Avro Data Files
            • Using Flume with Avro
            • Importing Avro Files with Sqoop 1 Using the Command Line
            • Using Avro with MapReduce
            • Streaming
            • Using Avro with Pig
            • Using Avro with Hive
          • Using the Parquet File Format with Impala, Hive, Pig, and MapReduce
        • Building RPMs from CDH Source RPMs
          • Prerequisites
          • Setting up an environment for building RPMs
          • Building an RPM
        • Apache and Third-Party Licenses
          • Apache License
          • Third-Party Licenses
        • Uninstalling CDH Components
        • Viewing the Apache Hadoop Documentation
    • Troubleshooting Installation and Upgrade Problems
  • Upgrade
  • Cloudera Administration
    • Configuring CDH and Managed Services
      • Configuring CDH and Managed Services Using Cloudera Manager
        • Configuration Overview
          • Modifying Configuration Properties
          • Autoconfiguration
          • Custom Configuration
          • Stale Configurations
          • Client Configuration Files
          • Viewing and Reverting Configuration Changes
          • Exporting and Importing Cloudera Manager Configuration
        • Managing Clusters
          • Adding and Deleting Clusters
          • Starting, Stopping, Refreshing, and Restarting a Cluster
          • Renaming a Cluster
          • Cluster-Wide Configuration
          • Moving a Host Between Clusters
        • Managing Services
          • Adding a Service
          • Add-on Services
          • Starting, Stopping, and Restarting Services
          • Rolling Restart
          • Aborting a Pending Command
          • Deleting Services
          • Renaming a Service
          • Configuring Maximum File Descriptors
        • Managing Roles
          • Role Instances
          • Role Groups
        • Managing Individual Services
          • The Flume Service
          • The HBase Service
            • Hedged Reads
          • The HDFS Service
            • Federated Nameservices
            • NameNodes
            • DataNodes
            • Backing Up HDFS Metadata
            • Configuring HDFS Trash
            • The HDFS Balancer
            • Enabling WebHDFS
            • Adding HttpFS
            • Adding and Configuring an NFS Gateway
            • Setting HDFS Quotas
          • The Hive Service
            • Hive Table Statistics
            • Using User-Defined Functions (UDFs) with HiveServer2
          • The Hue Service
          • The Impala Service
          • The Isilon Service
          • The Key-Value Store Indexer Service
          • Managing MapReduce and YARN
            • The MapReduce Service
            • Managing YARN
          • The Oozie Service
          • The Solr Service
          • Managing Spark Using Cloudera Manager
          • The Sqoop 1 Client
          • The Sqoop 2 Service
          • The ZooKeeper Service
          • Configuring Services to Use the GPL Extras Parcel
        • Managing Hosts
          • Viewing Host Details
          • Using the Host Inspector
          • Adding a Host to the Cluster
          • Specifying Racks for Hosts
          • Host Templates
          • Maintenance Mode
          • Decommissioning and Recommissioning Hosts
          • Deleting Hosts
          • Managing Non-CDH Resources
        • Cloudera Manager 5.3 Configuration Properties
          • Cloudera Manager 5.3 Configuration Properties
          • CDH 5.3.0 Properties
            • Accumulo 1.6 Properties in CDH 5.3.0
            • Flume Properties in CDH 5.3.0
            • HBase Properties in CDH 5.3.0
            • HDFS Properties in CDH 5.3.0
            • Hive Properties in CDH 5.3.0
            • Hue Properties in CDH 5.3.0
            • Impala Properties in CDH 5.3.0
            • Isilon Properties in CDH 5.3.0
            • Key-Value Store Indexer Properties in CDH 5.3.0
            • KMS (File) Properties in CDH 5.3.0
            • KMS (Navigator Key Trustee) Properties in CDH 5.3.0
            • MapReduce Properties in CDH 5.3.0
            • Oozie Properties in CDH 5.3.0
            • Sentry Properties in CDH 5.3.0
            • Solr Properties in CDH 5.3.0
            • Spark Properties in CDH 5.3.0
            • Spark (Standalone) Properties in CDH 5.3.0
            • Sqoop 1 Client Properties in CDH 5.3.0
            • Sqoop 2 Properties in CDH 5.3.0
            • YARN (MR2 Included) Properties in CDH 5.3.0
            • ZooKeeper Properties in CDH 5.3.0
          • CDH 5.2.0 Properties
            • Accumulo 1.6 Properties in CDH 5.2.0
            • Flume Properties in CDH 5.2.0
            • HBase Properties in CDH 5.2.0
            • HDFS Properties in CDH 5.2.0
            • Hive Properties in CDH 5.2.0
            • Hue Properties in CDH 5.2.0
            • Impala Properties in CDH 5.2.0
            • Isilon Properties in CDH 5.2.0
            • Key-Value Store Indexer Properties in CDH 5.2.0
            • KMS (File) Properties in CDH 5.2.0
            • KMS (Navigator Key Trustee) Properties in CDH 5.2.0
            • MapReduce Properties in CDH 5.2.0
            • Oozie Properties in CDH 5.2.0
            • Sentry Properties in CDH 5.2.0
            • Solr Properties in CDH 5.2.0
            • Spark Properties in CDH 5.2.0
            • Spark (Standalone) Properties in CDH 5.2.0
            • Sqoop 1 Client Properties in CDH 5.2.0
            • Sqoop 2 Properties in CDH 5.2.0
            • YARN (MR2 Included) Properties in CDH 5.2.0
            • ZooKeeper Properties in CDH 5.2.0
          • CDH 5.1.0 Properties
            • Accumulo 1.6 Properties in CDH 5.1.0
            • Flume Properties in CDH 5.1.0
            • HBase Properties in CDH 5.1.0
            • HDFS Properties in CDH 5.1.0
            • Hive Properties in CDH 5.1.0
            • Hue Properties in CDH 5.1.0
            • Impala Properties in CDH 5.1.0
            • Isilon Properties in CDH 5.1.0
            • Key-Value Store Indexer Properties in CDH 5.1.0
            • KMS (File) Properties in CDH 5.1.0
            • KMS (Navigator Key Trustee) Properties in CDH 5.1.0
            • MapReduce Properties in CDH 5.1.0
            • Oozie Properties in CDH 5.1.0
            • Sentry Properties in CDH 5.1.0
            • Solr Properties in CDH 5.1.0
            • Spark Properties in CDH 5.1.0
            • Spark (Standalone) Properties in CDH 5.1.0
            • Sqoop 1 Client Properties in CDH 5.1.0
            • Sqoop 2 Properties in CDH 5.1.0
            • YARN (MR2 Included) Properties in CDH 5.1.0
            • ZooKeeper Properties in CDH 5.1.0
          • CDH 5.0.0 Properties
            • Accumulo 1.6 Properties in CDH 5.0.0
            • Flume Properties in CDH 5.0.0
            • HBase Properties in CDH 5.0.0
            • HDFS Properties in CDH 5.0.0
            • Hive Properties in CDH 5.0.0
            • Hue Properties in CDH 5.0.0
            • Impala Properties in CDH 5.0.0
            • Isilon Properties in CDH 5.0.0
            • Key-Value Store Indexer Properties in CDH 5.0.0
            • KMS (File) Properties in CDH 5.0.0
            • KMS (Navigator Key Trustee) Properties in CDH 5.0.0
            • MapReduce Properties in CDH 5.0.0
            • Oozie Properties in CDH 5.0.0
            • Solr Properties in CDH 5.0.0
            • Spark Properties in CDH 5.0.0
            • Spark (Standalone) Properties in CDH 5.0.0
            • Sqoop 1 Client Properties in CDH 5.0.0
            • Sqoop 2 Properties in CDH 5.0.0
            • YARN (MR2 Included) Properties in CDH 5.0.0
            • ZooKeeper Properties in CDH 5.0.0
          • Host Configuration Properties
          • Cloudera Manager Server Properties
          • Cloudera Management Service
      • Configuring and Using CDH from the Command Line
        • Starting CDH Services
          • Configuring init to Start Hadoop System Services
        • Stopping CDH Services Using the Command Line
        • Migrating Data between Clusters Using distcp
          • Copying Data between two Clusters Using distcp
          • Copying Data between a Secure and an Insecure Cluster using DistCp and webHDFS
          • Post-migration Verification
        • Configuring HDFS
          • Configuring an NFSv3 Gateway
          • Configuring Mountable HDFS
          • Using the HDFS Balancer
          • Setting HDFS Quotas
          • Configuring Centralized Cache Management in HDFS
        • Configuring and Using HBase
          • Configuring the Blocksize for HBase
          • Reading Data from HBase
          • HBase Filtering
          • Writing Data to HBase
          • Importing Data Into HBase
          • Checking and Repairing HBase Tables
        • Configuring Hive
        • Configuring Impala
          • Post-Installation Configuration for Impala
          • Configuring Impala to Work with ODBC
          • Configuring Impala to Work with JDBC
    • Resource Management
      • Managing Resources with Cloudera Manager
        • Linux Control Groups
        • Static Service Pools
        • Dynamic Resource Pools
        • Managing Impala Admission Control
        • Managing the Impala Llama ApplicationMaster
      • Impala Resource Management
        • Admission Control and Query Queuing
        • Integrated Resource Management with YARN
    • Performance Management
      • Optimizing Performance in CDH
      • Configuring Short-Circuit Reads
      • Choosing a Data Compression Format
      • Tuning the Solr Server
      • Tuning YARN
    • High Availability
      • HDFS High Availability
        • Introduction to HDFS High Availability
        • Configuring Hardware for HDFS HA
        • Enabling HDFS HA
        • Disabling and Redeploying HDFS HA
        • Configuring Other CDH Components to Use HDFS HA
        • Administering an HDFS High Availability Cluster
      • MapReduce (MRv1) and YARN (MRv2) High Availability
        • YARN (MRv2) ResourceManager High Availability
        • Work Preserving Recovery for YARN Components
        • MapReduce (MRv1) JobTracker High Availability
          • Usage Notes
      • High Availability for Other CDH Components
        • HBase High Availability
        • Hive Metastore High Availability
        • Llama High Availability
        • Oozie High Availability
        • Search High Availability
    • Backup and Disaster Recovery
      • Backup and Disaster Recovery Overview
      • Data Replication
        • Designating a Replication Source
        • HBase Replication
        • HDFS Replication
        • Hive Replication
        • Impala Metadata Replication
        • Using Snapshots with Replication
        • Enabling Replication Between Clusters in Different Kerberos Realms
      • Snapshots
        • Cloudera Manager Snapshot Policies
        • Managing HBase Snapshots
        • Managing HDFS Snapshots
    • Cloudera Manager Administration
      • Managing the Cloudera Manager Server and Agents
        • Starting, Stopping, and Restarting the Cloudera Manager Server
        • Configuring Cloudera Manager Server Ports
        • Moving the Cloudera Manager Server to a New Host
        • Starting, Stopping, and Restarting Cloudera Manager Agents
        • Configuring Cloudera Manager Agents
        • Managing Cloudera Manager Server and Agent Logs
        • Changing Hostnames
        • Configuring Network Settings
        • Managing Alerts
          • Configuring Alert Email Delivery
          • Configuring Alert SNMP Delivery
        • Managing Licenses
        • Sending Usage and Diagnostic Data to Cloudera
        • Exporting and Importing Cloudera Manager Configuration
        • Other Cloudera Manager Tasks and Settings
        • Displaying the Cloudera Manager Server Version and Server Time
        • Displaying Cloudera Manager Documentation
      • Cloudera Management Service
    • Cloudera Navigator Administration
      • Cloudera Navigator Audit Server
      • Cloudera Navigator Metadata Server
      • Displaying the Cloudera Navigator Version
      • Displaying Cloudera Navigator Documentation
  • Cloudera Data Management
    • Cloudera Navigator Auditing Architecture
      • Audit Log Properties
      • Service Auditing Properties
        • Auditing
      • Audit Events and Audit Reports
      • Downloading HDFS Directory Access Permission Reports
    • Cloudera Navigator Metadata Component
      • Metadata
        • Metadata Search Syntax and Properties
        • Accessing Metadata Using Cloudera Navigator
        • Modifying Custom Metadata
      • Metadata Extraction Policies
        • Policy Expressions
      • Introduction to Cloudera Navigator Lineage Diagrams
      • Tables
  • Cloudera Operation
    • Monitoring and Diagnostics
      • Introduction to Cloudera Manager Monitoring
        • Starting and Logging into the Admin Console
        • Time Line
        • Health Tests
        • Cloudera Manager Admin Console Home Page
        • Viewing Charts for Cluster, Service, Role, and Host Instances
        • Configuring Monitoring Settings
      • Monitoring Clusters
      • Monitoring Services
        • Monitoring Service Status
        • Viewing Service Status
        • Viewing Service Instance Details
        • Viewing Role Instance Status
          • The Processes Tab
        • Running Diagnostic Commands for Roles
        • Period Stacks Collection
        • Managing and Monitoring Federated HDFS
        • Viewing Running and Recent Commands
        • Monitoring Resource Management
      • Monitoring Hosts
        • Host Details
        • Host Inspector
      • Monitoring Activities
        • MapReduce Jobs
          • Viewing and Filtering MapReduce Activities
          • Viewing the Jobs in a Pig, Oozie, or Hive Activity
          • Task Attempts
          • Viewing Activity Details in a Report Format
          • Comparing Similar Activities
          • Viewing the Distribution of Task Attempts
        • Monitoring Impala Queries
          • Query Details
        • YARN Applications
      • Events
      • Alerts
      • Triggers
      • Audit Events
      • Charting Time-Series Data
        • Dashboards
        • tsquery Language
        • Metric Aggregation
      • Logs
        • Viewing Cloudera Manager Server and Agent Logs
      • Reports
        • Disk Usage Reports
        • Activity, Application, and Query Reports
        • The File Browser
        • Downloading HDFS Directory Access Permission Reports
      • Troubleshooting Cluster Configuration and Operation
    • Cloudera Manager Metrics
      • Accumulo Metrics
      • Accumulo 1.6 Metrics
      • Activity Metrics
      • Activity Monitor Metrics
      • Agent Metrics
      • Alert Publisher Metrics
      • Attempt Metrics
      • Beeswax Server Metrics
      • Cloudera Management Service Metrics
      • Cloudera Manager Server Metrics
      • Cluster Metrics
      • DataNode Metrics
      • Directory Metrics
      • Disk Metrics
      • Event Server Metrics
      • Failover Controller Metrics
      • Filesystem Metrics
      • Flume Metrics
      • Flume Channel Metrics
      • Flume Channel Tier Metrics
      • Flume Sink Metrics
      • Flume Sink Tier Metrics
      • Flume Source Metrics
      • Flume Source Tier Metrics
      • Garbage Collector Metrics
      • HBase Metrics
      • HBase Namespace Metrics
      • HBase REST Server Metrics
      • HBase Region Metrics
      • HBase Table Metrics
      • HBase Thrift Server Metrics
      • HDFS Metrics
      • HDFS Cache Directive Metrics
      • HDFS Cache Pool Metrics
      • History Server Metrics
      • Hive Metrics
      • Hive Metastore Server Metrics
      • HiveServer2 Metrics
      • Host Metrics
      • Host Monitor Metrics
      • HttpFS Metrics
      • Hue Metrics
      • Hue Server Metrics
      • Impala Metrics
      • Impala Catalog Server Metrics
      • Impala Daemon Metrics
      • Impala Daemon Pool Metrics
      • Impala Llama ApplicationMaster Metrics
      • Impala Pool Metrics
      • Impala Query Metrics
      • Impala StateStore Metrics
      • Isilon Metrics
      • JobHistory Server Metrics
      • JobTracker Metrics
      • JournalNode Metrics
      • Kerberos Ticket Renewer Metrics
      • Key Management Server Metrics
      • Key Management Server Proxy Metrics
      • Key Trustee Metrics
      • Key-Value Store Indexer Metrics
      • Lily HBase Indexer Metrics
      • Logger Metrics
      • MapReduce Metrics
      • Master Metrics
      • Monitor Metrics
      • NFS Gateway Metrics
      • NameNode Metrics
      • Navigator Audit Server Metrics
      • Navigator Metadata Server Metrics
      • Network Interface Metrics
      • NodeManager Metrics
      • Oozie Metrics
      • Oozie Server Metrics
      • Rack Metrics
      • RegionServer Metrics
      • Reports Manager Metrics
      • ResourceManager Metrics
      • SecondaryNameNode Metrics
      • Sentry Metrics
      • Sentry Server Metrics
      • Server Metrics
      • Service Monitor Metrics
      • Solr Metrics
      • Solr Collection Metrics
      • Solr Replica Metrics
      • Solr Server Metrics
      • Solr Shard Metrics
      • Spark Metrics
      • Spark (Standalone) Metrics
      • Sqoop 1 Client Metrics
      • Sqoop 2 Metrics
      • Sqoop 2 Server Metrics
      • Tablet Server Metrics
      • TaskTracker Metrics
      • Time Series Table Metrics
      • Tracer Metrics
      • User Metrics
      • WebHCat Server Metrics
      • Worker Metrics
      • YARN (MR2 Included) Metrics
      • YARN Pool Metrics
      • ZooKeeper Metrics
    • Cloudera Manager Health Tests
      • Activity Monitor Health Tests
      • Alert Publisher Health Tests
      • Beeswax Server Health Tests
      • Cloudera Management Service Health Tests
      • DataNode Health Tests
      • Event Server Health Tests
      • Failover Controller Health Tests
      • Flume Health Tests
      • Flume Agent Health Tests
      • Garbage Collector Health Tests
      • HBase Health Tests
      • HBase REST Server Health Tests
      • HBase Thrift Server Health Tests
      • HDFS Health Tests
      • History Server Health Tests
      • Hive Health Tests
      • Hive Metastore Server Health Tests
      • HiveServer2 Health Tests
      • Host Health Tests
      • Host Monitor Health Tests
      • HttpFS Health Tests
      • Hue Health Tests
      • Hue Server Health Tests
      • Impala Health Tests
      • Impala Catalog Server Health Tests
      • Impala Daemon Health Tests
      • Impala Llama ApplicationMaster Health Tests
      • Impala StateStore Health Tests
      • JobHistory Server Health Tests
      • JobTracker Health Tests
      • JournalNode Health Tests
      • Kerberos Ticket Renewer Health Tests
      • Key Management Server Health Tests
      • Key Management Server Proxy Health Tests
      • Key-Value Store Indexer Health Tests
      • Lily HBase Indexer Health Tests
      • Logger Health Tests
      • MapReduce Health Tests
      • Master Health Tests
      • Monitor Health Tests
      • NFS Gateway Health Tests
      • NameNode Health Tests
      • Navigator Audit Server Health Tests
      • Navigator Metadata Server Health Tests
      • NodeManager Health Tests
      • Oozie Health Tests
      • Oozie Server Health Tests
      • RegionServer Health Tests
      • Reports Manager Health Tests
      • ResourceManager Health Tests
      • SecondaryNameNode Health Tests
      • Sentry Health Tests
      • Sentry Server Health Tests
      • Service Monitor Health Tests
      • Solr Health Tests
      • Solr Server Health Tests
      • Sqoop 2 Health Tests
      • Sqoop 2 Server Health Tests
      • Tablet Server Health Tests
      • TaskTracker Health Tests
      • Tracer Health Tests
      • WebHCat Server Health Tests
      • Worker Health Tests
      • YARN (MR2 Included) Health Tests
      • ZooKeeper Health Tests
      • ZooKeeper Server Health Tests
  • Cloudera Security
    • Authentication
      • Configuring Authentication in Cloudera Manager
        • Cloudera Manager User Accounts
        • Configuring External Authentication for Cloudera Manager
        • Kerberos Principals and Keytabs
        • Enabling Kerberos Authentication Using the Wizard
          • Step 1: Install Cloudera Manager and CDH
          • Step 2: If You are Using AES-256 Encryption, Install the JCE Policy File
          • Step 3: Get or Create a Kerberos Principal for the Cloudera Manager Server
          • Step 4: Enabling Kerberos Using the Wizard
          • Step 5: Create the HDFS Superuser
          • Step 6: Get or Create a Kerberos Principal for Each User Account
          • Step 7: Prepare the Cluster for Each User
          • Step 8: Verify that Kerberos Security is Working
          • Step 9: (Optional) Enable Authentication for HTTP Web Consoles for Hadoop Roles
        • Enabling Kerberos Authentication for Single User Mode or Non-Default Users
        • Viewing and Regenerating Kerberos Principals
        • Mapping Kerberos Principals to Short Names
        • Configuring YARN for Long-running Applications
        • Enabling Kerberos Authentication Without the Wizard
          • Step 1: Install Cloudera Manager and CDH
          • Step 2: If You are Using AES-256 Encryption, Install the JCE Policy File
          • Step 3: Get or Create a Kerberos Principal for the Cloudera Manager Server
          • Step 4: Import KDC Account Manager Credentials
          • Step 5: Configure the Kerberos Default Realm in the Cloudera Manager Admin Console
          • Step 6: Stop All Services
          • Step 7: Enable Hadoop Security
          • Step 8: Wait for the Generate Credentials Command to Finish
          • Step 9: Enable Hue to Work with Hadoop Security using Cloudera Manager
          • Step 10: (Flume Only) Use Substitution Variables for the Kerberos Principal and Keytab
          • Step 11: (CDH 4.0 and 4.1 only) Configure Hue to Use a Local Hive Metastore
          • Step 12: Start All Services
          • Step 13: Deploy Client Configurations
          • Step 14: Create the HDFS Superuser Principal
          • Step 15: Get or Create a Kerberos Principal for Each User Account
          • Step 16: Prepare the Cluster for Each User
          • Step 17: Verify that Kerberos Security is Working
          • Step 18: (Optional) Enable Authentication for HTTP Web Consoles for Hadoop Roles
      • Configuring Authentication in Cloudera Navigator
        • Configuring External Authentication for Cloudera Navigator
        • Managing Users and Groups for Cloudera Navigator
      • Configuring Authentication in CDH Using the Command Line
        • Enabling Kerberos Authentication for Hadoop Using the Command Line
          • Step 1: Install CDH 5
          • Step 2: Verify User Accounts and Groups in CDH 5 Due to Security
          • Step 3: If you are Using AES-256 Encryption, Install the JCE Policy File
          • Step 4: Create and Deploy the Kerberos Principals and Keytab Files
          • Step 5: Shut Down the Cluster
          • Step 6: Enable Hadoop Security
          • Step 7: Configure Secure HDFS
          • Optional Step 8: Configuring Security for HDFS High Availability
          • Optional Step 9: Configure secure WebHDFS
          • Optional Step 10: Configuring a secure HDFS NFS Gateway
          • Step 11: Set Variables for Secure DataNodes
          • Step 12: Start up the NameNode
          • Step 12: Start up a DataNode
          • Step 14: Set the Sticky Bit on HDFS Directories
          • Step 15: Start up the Secondary NameNode (if used)
          • Step 16: Configure Either MRv1 Security or YARN Security
            • Configuring MRv1 Security
            • Configuring YARN Security
        • Flume Authentication
          • Configuring Flume's Security Properties
          • Flume Account Requirements
          • Testing the Flume HDFS Sink Configuration
          • Writing to a Secure HBase cluster
        • HBase Authentication
          • Configuring Kerberos Authentication for HBase
          • Configuring Secure HBase Replication
          • Configuring the HBase Client TGT Renewal Period
        • HCatalog Authentication
        • Hive Authentication
          • HiveServer2 Security Configuration
          • Hive Metastore Server Security Configuration
          • Using Hive to Run Queries on a Secure HBase Server
        • HttpFS Authentication
        • Hue Authentication
          • Configuring Kerberos Authentication for Hue
          • Integrating Hue with LDAP
          • Configuring Hue for SAML
        • Impala Authentication
          • Enabling Kerberos Authentication for Impala
          • Enabling LDAP Authentication for Impala
          • Using Multiple Authentication Methods with Impala
          • Configuring Impala Delegation for Hue and BI Tools
        • Llama Authentication
        • Oozie Authentication
          • Configuring Kerberos Authentication for the Oozie Server
          • Configuring Oozie HA with Kerberos
        • Search Authentication
        • ZooKeeper Authentication
        • FUSE Kerberos Configuration
        • Using kadmin to Create Kerberos Keytab Files
        • Configuring the Mapping from Kerberos Principals to Short Names
        • Enabling Debugging Output for the Sun Kerberos Classes
      • Configuring a Cluster-dedicated MIT KDC with Cross-Realm Trust
      • Integrating Hadoop Security with Active Directory
      • Integrating Hadoop Security with Alternate Authentication
      • Configuring LDAP Group Mappings
      • Hadoop Users in Cloudera Manager and CDH
      • Authenticating Kerberos Principals in Java Code
      • Using a Web Browser to Access an URL Protected by Kerberos HTTP SPNEGO
      • Troubleshooting Authentication Issues
    • Encryption
      • SSL Certificates Overview
        • Creating Certificates
        • Creating Java Keystores and Truststores
        • Private Key and Certificate Reuse Across Java Keystores and OpenSSL
      • Configuring TLS Security for Cloudera Manager
        • Configuring TLS Encryption Only for Cloudera Manager
        • Level 1: Configuring TLS Encryption for Cloudera Manager Agents
        • Level 2: Configuring TLS Verification of Cloudera Manager Server by the Agents
        • Level 3: Configuring TLS Authentication of Agents to the Cloudera Manager Server
        • HTTPS Communication in Cloudera Manager
        • Troubleshooting SSL/TLS Connectivity
      • Configuring SSL for Cloudera Navigator
      • Configuring SSL/TLS Encryption for CDH Services
        • Configuring SSL for HDFS, YARN and MapReduce
        • Configuring SSL for HBase
        • Configuring SSL for Oozie
        • Configuring Encrypted Communication Between Hive and Client Drivers
        • Configuring SSL for Hue
        • Configuring SSL for Impala
        • Configuring HttpFS to use SSL
        • Encrypted Shuffle and Encrypted Web UIs
      • HDFS Data At Rest Encryption
        • Configuring the Key Management Server (KMS)
        • Securing the Key Management Server (KMS)
        • Configuring CDH Services for HDFS Encryption
        • HDFS Encryption Troubleshooting
      • Configuring Encrypted HDFS Data Transport
    • Authorization
      • Cloudera Manager User Roles
      • Cloudera Navigator User Roles
      • Enabling HDFS Extended ACLs
      • The Sentry Service
        • Installing and Upgrading the Sentry Service
        • Migrating from Sentry Policy Files to the Sentry Service
        • Configuring the Sentry Service
        • Sentry Debugging and Failure Scenarios
        • Hive SQL Syntax for Use with Sentry
        • Synchronizing HDFS ACLs and Sentry Permissions
        • Reporting Metrics for the Sentry Service
      • Sentry Policy File Authorization
        • Installing and Upgrading Sentry for Policy File Authorization
        • Configuring Sentry Policy File Authorization Using Cloudera Manager
        • Configuring Sentry Policy File Authorization Using the Command Line
      • Enabling Sentry Authorization for Impala
      • Enabling Sentry Authorization for Search
      • Configuring HBase Authorization
    • Overview of Impala Security
      • Security Guidelines for Impala
      • Securing Impala Data and Log Files
      • Installation Considerations for Impala Security
      • Securing the Hive Metastore Database
      • Securing the Impala Web User Interface
    • Miscellaneous Topics
      • Jsvc, Task Controller and Container Executor Programs
        • MRv1 ONLY: Task-controller Error Codes
        • YARN ONLY: Container-executor Error Codes
      • Sqoop, Pig, and Whirr Security Support Status
      • Setting Up a Gateway Node to Restrict Cluster Access
      • Logging a Security Support Case
      • Using Antivirus Software on CDH Hosts
  • Cloudera Impala Guide
    • Concepts and Architecture
      • Components
      • Developing Applications
      • Role in the Hadoop Ecosystem
    • Deployment Planning
      • Requirements
      • Designing Schemas
    • Tutorials
    • Administration
      • Setting Timeouts
      • Load-Balancing Proxy for HA
      • Managing Disk Space
    • SQL Reference
      • Comments
      • Data Types
        • BIGINT
        • BOOLEAN
        • CHAR
        • DECIMAL
        • DOUBLE
        • FLOAT
        • INT
        • REAL
        • SMALLINT
        • STRING
        • TIMESTAMP
        • TINYINT
        • VARCHAR
      • Literals
      • SQL Operators
      • Schema Objects and Object Names
        • Aliases
        • Databases
        • Functions
        • Identifiers
        • Tables
        • Views
      • SQL Statements
        • DDL Statements
        • DML Statements
        • ALTER TABLE Statement
        • ALTER VIEW
        • COMPUTE STATS
        • CREATE DATABASE
        • CREATE FUNCTION
        • CREATE ROLE
        • CREATE TABLE
        • CREATE VIEW
        • DESCRIBE
        • DROP DATABASE
        • DROP FUNCTION
        • DROP ROLE
        • DROP STATS
        • DROP TABLE
        • DROP VIEW
        • EXPLAIN
        • GRANT
        • INSERT
        • INVALIDATE METADATA
        • LOAD DATA
        • REFRESH
        • REVOKE
        • SELECT
          • Joins
          • ORDER BY Clause
          • GROUP BY Clause
          • HAVING Clause
          • LIMIT Clause
          • OFFSET Clause
          • UNION Clause
          • Subqueries
          • WITH Clause
          • DISTINCT Operator
          • Hints
        • SET
          • Query Options for the SET Statement
            • ABORT_ON_DEFAULT_LIMIT_EXCEEDED
            • ABORT_ON_ERROR
            • ALLOW_UNSUPPORTED_FORMATS
            • APPX_COUNT_DISTINCT
            • BATCH_SIZE
            • COMPRESSION_CODEC
            • DEBUG_ACTION
            • DEFAULT_ORDER_BY_LIMIT
            • DISABLE_CODEGEN
            • DISABLE_UNSAFE_SPILLS
            • EXEC_SINGLE_NODE_ROWS_THRESHOLD
            • EXPLAIN_LEVEL
            • HBASE_CACHE_BLOCKS
            • HBASE_CACHING
            • MAX_ERRORS
            • MAX_IO_BUFFERS
            • MAX_SCAN_RANGE_LENGTH
            • MEM_LIMIT
            • NUM_NODES
            • NUM_SCANNER_THREADS
            • PARQUET_COMPRESSION_CODEC
            • PARQUET_FILE_SIZE
            • QUERY_TIMEOUT_S
            • REQUEST_POOL
            • RESERVATION_REQUEST_TIMEOUT
            • SUPPORT_START_OVER
            • SYNC_DDL
            • V_CPU_CORES
        • SHOW
        • USE
      • Built-In Functions
        • Mathematical Functions
        • Type Conversion Functions
        • Date and Time Functions
        • Conditional Functions
        • String Functions
        • Miscellaneous Functions
        • Aggregate Functions
          • APPX_MEDIAN
          • AVG
          • COUNT
          • GROUP_CONCAT
          • MAX
          • MIN
          • NDV
          • STDDEV, STDDEV_SAMP, STDDEV_POP
          • SUM
          • VARIANCE, VARIANCE_SAMP, VARIANCE_POP, VAR_SAMP, VAR_POP
        • Analytic Functions
        • Impala User-Defined Functions (UDFs)
      • SQL Differences Between Impala and Hive
      • Porting SQL
    • The Impala Shell
      • Configuration Options
      • Connecting to impalad
      • Running Commands and SQL Statements
      • Command Reference
    • Performance Tuning
      • Performance Best Practices
      • Join Performance
      • Table and Column Statistics
      • Benchmarking
      • Controlling Resource Usage
      • HDFS Caching
      • Testing Impala Performance
      • EXPLAIN Plans and Query Profiles
      • HDFS Block Skew
    • Scalability Considerations
    • Partitioning
    • File Formats
      • Text Data Files
      • Parquet Data Files
      • Avro Data Files
      • RCFile Data Files
      • SequenceFile Data Files
    • HBase Tables
    • Logging
    • Troubleshooting Impala
      • Web User Interface
    • Ports Used by Impala
    • Impala Reserved Words
    • Impala Frequently Asked Questions
  • Cloudera Search Guide
    • Cloudera Search User Guide
      • Cloudera Search Overview
      • Understanding Cloudera Search
        • Cloudera Search and Other Cloudera Components
        • Cloudera Search Architecture
        • Cloudera Search Tasks and Processes
      • Cloudera Search Tutorial
        • Validating the Deployment with the Solr REST API
        • Preparing to Index Data with Cloudera Search
        • Using MapReduce Batch Indexing with Cloudera Search
        • Near Real Time (NRT) Indexing Using Flume and the Solr Sink
          • Deploying Solr Sink into the Flume Agent
          • Configuring the Flume Solr Sink
          • Configuring Flume Solr Sink to Sip from the Twitter Firehose
          • Starting the Flume Agent
          • Indexing a File Containing Tweets with Flume HTTPSource
          • Indexing a File Containing Tweets with Flume SpoolDirectorySource
        • Using Hue with Cloudera Search
      • Solrctl Reference
      • Spark Indexing
      • MapReduce Batch Indexing Reference
        • MapReduceIndexerTool
          • MapReduceIndexerTool Metadata
        • HdfsFindTool
      • Flume Near Real-Time Indexing Reference
        • Flume Morphline Solr Sink Configuration Options
        • Flume Morphline Interceptor Configuration Options
        • Flume Solr UUIDInterceptor Configuration Options
        • Flume Solr BlobHandler Configuration Options
        • Flume Solr BlobDeserializer Configuration Options
      • Extracting, Transforming, and Loading Data With Cloudera Morphlines
        • Example Morphline Usage
      • Using the Lily HBase Batch Indexer for Indexing
        • HBaseMapReduceIndexerTool
      • Configuring the Lily HBase NRT Indexer Service for Use with Cloudera Search
        • Using the Lily HBase NRT Indexer Service
      • Schemaless Mode Overview and Best Practices
      • Using Search through a Proxy for High Availability
      • Migrating Solr Replicas
      • Troubleshooting Cloudera Search
        • Static Solr Log Analysis
      • Cloudera Search Frequently Asked Questions
  • Cloudera Glossary
    • Cloudera Glossary
    • Cloudera Manager Glossary
    • Cloudera Search Glossary

HDFS High Availability

This section explains how to configure a highly-available NameNode. The following topics provide more information and instructions:

  • Introduction to HDFS High Availability
  • Configuring Hardware for HDFS HA
  • Enabling HDFS HA
  • Disabling and Redeploying HDFS HA
  • Configuring Other CDH Components to Use HDFS HA
  • Administering an HDFS High Availability Cluster

Categories: HDFS | High Availability | All Categories

High Availability
Introduction to HDFS High Availability
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