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DataStax Enterprise OpsCenter 6.8

    • About OpsCenter
      • New features
      • Key features
      • Labs features
        • Exporting and importing dashboard presets
        • Adding a Swift CLI backup location
        • Configuring named route linking
        • Viewing logs from node details
      • Architecture overview
      • OpsCenter policy for DDAC and OSS
      • Feedback about OpsCenter
    • Release notes
    • Installing OpsCenter
    • Upgrading OpsCenter
    • OpsCenter recommended settings
      • OpsCenter basic configurations
      • Cluster synchronization settings
      • Backup Service settings
      • Knowledge Base articles
    • Configuring OpsCenter
      • OpsCenter Security
        • OpsCenter SSL overview
          • Enabling/Disabling HTTPS for the OpsCenter server
          • Configuring SSL/TLS between OpsCenter and the DataStax Agents
          • Connect to DSE with client-to-node encryption in OpsCenter and the DataStax Agents
          • Editing/OpsCenter cluster connections for authentication or encryption
          • SSL configuration options for OpsCenter
        • Configuring OpsCenter role-based security
        • Encrypting sensitive configuration values
          • Activating configuration encryption
          • Creating a system key to encrypt sensitive configuration values
          • Manually encrypting a configuration value
          • Deactivating configuration encryption
        • Authenticating with LDAP
          • Configuring LDAP
          • Adding a role for an LDAP user
          • Troubleshooting OpsCenter LDAP
        • Kerberos authentication
          • Configuring OpsCenter for Kerberos authentication
          • OpsCenter Kerberos configuration options
          • Troubleshooting Kerberos in OpsCenter
        • Configuring security logging
      • Configuring alerts for events
        • SNMP alerts overview
          • Enabling SNMP alerts
        • Enabling SMTP email alerts
        • Enabling alerts posted to a URL
          • Verifying that events are posting correctly
          • Posting URL alerts to a Slack channel
      • Configuring data collection and expiration
        • Controlling data collection
        • Storing collection data on a separate cluster
      • OpsCenter DSE definitions files updates
        • Updating and configuring definitions files properties
      • Automatic failover overview
        • Enabling automatic failover
        • Failover configuration options reference
      • Backing up critical configuration data
      • Configuring named route linking
      • Configuring the OpsCenter JVM
      • Configuring the DataStax Agent JVM
        • Setting and securing the tmp directory for the DataStax Agent
        • Encrypting JMX communications
      • Changing the replication strategy for the OpsCenter keyspace
      • Configuration files for OpsCenter
        • OpsCenter configuration properties
          • Statistics reporter properties
        • Cluster configuration properties
          • Cassandra connection properties
          • Metrics Collection Properties
        • DataStax Agent configuration
        • OpsCenter logback.xml configuration
      • Customize scripts for starting and stopping DataStax Enterprise
      • Example configuration scenarios
        • Configuring for multiple regions
        • Configuring for very large clusters
    • Using OpsCenter
      • OpsCenter workspace overview
        • Ring View
        • List View
        • DataStax Agents Status View
        • Nodes Detail View
          • Node management operations
      • Configuring alerts
        • Adding an alert for agent issues
          • Troubleshooting DataStax Agent Issues
        • Adding an alert for down nodes
        • Configuring an alert for KMIP errors
        • Configuring an alert for percentage of in-memory usage
        • Configuring an alert for percentiles
      • Monitoring node operations
        • Viewing the Spark Console
        • Monitoring in-memory usage
        • Viewing logs from node details
      • Managing and maintaining nodes
        • Running cleanup
        • Performing garbage collection
        • Running compaction
        • Flushing tables
        • Decommission a node
        • Draining a node
        • Moving a node
        • Running a manual repair
        • Configure an alias for a node
      • Starting and stopping DSE
        • Starting DSE on a node
        • Stopping DSE on a node
        • Restarting DSE on a node
      • Managing keyspaces and tables
        • Keyspaces
          • Managing a keyspace
          • Managing tables
        • Browsing data deprecated
      • Cluster administration
        • Adding an existing cluster
        • Disconnecting a cluster from OpsCenter and Lifecycle Manager
        • Rebalancing a cluster overview
          • Rebalancing a cluster
          • Configuring an alert for rebalancing a cluster
        • Restarting a cluster
        • Changing the display name of a cluster
        • Downloading diagnostic data
          • Diagnostic tarball reference
          • Creating an alternate directory for diagnostic information
        • Downloading Insights diagnostic data
        • Generating a cluster report
      • OpsCenter Metrics Tooltips Reference
        • Dashboard performance metrics
        • Performance metrics overview
          • Working with metrics performance graphs
          • Organizing performance metrics presets
          • Exporting and importing dashboard presets
        • Cluster performance metrics
        • Pending task metrics
          • Pending task metrics for writes
          • Pending task metrics for reads
          • Pending task metrics for cluster operations
        • Table performance metrics
        • Tiered storage performance metrics
          • Configuring tiered storage metric graphs
          • Configuring tiered storage alerts
        • Message latency metrics
          • Adding dashboard graphs for datacenter and node messaging latency
          • Adding alerts for DC and node message latency
        • Search performance metrics
        • Graph metrics
        • NodeSync metrics
        • Thread Pool (TP) metrics
          • Viewing TP stats in Node Details
          • Enabling network backpressure
        • Dropped Messages metrics
        • Operating system performance metrics
        • Alert metrics
          • Advanced system alert metrics
    • OpsCenter 6.8 Reference
      • OpsCenter ports reference
      • Installation and configuration locations
        • Default file locations for package installations
        • Default file locations tarball installations
      • Starting, stopping, and restarting OpsCenter
        • Startup log for OpsCenter
      • Stopping, starting, and restarting DataStax Agents
    • DSE Management Services
      • Backup Service
        • Quick Video Tour: Backup Service
        • Adding a backup location
          • Adding a local file system backup location
          • Adding an Amazon S3 backup location
          • Adding an Azure backup location
        • Backing up data
          • Backing up a cluster
          • Backing up to Amazon S3
          • Backing up and restoring DataStax Graphs in OpsCenter
          • Viewing backup and restore history
          • Synchronizing backup data after an upgrade
          • Deleting backup data
        • Restoring a cluster
          • Restoring from a backup
          • Restoring a backup to a specific point-in-time
          • Monitoring sufficient disk space for restoring backups
        • Cloning cluster data
          • Cloning cluster data from a defined other location
          • Cloning cluster data from clusters managed by the same OpsCenter instance
        • Configuring the Backup Service
          • Configuring commit log backups
          • Configuring the free disk space threshold for backups
          • Configuring encryption key storage for backups
          • Configuring custom scripts to run before and after backups
          • Configuring restore to continue after a download failure
          • Backup Service configuration options
        • Troubleshooting Backup Service errors
      • NodeSync Service
        • Enabling NodeSync
        • Configuring the NodeSync refresh data interval
        • Viewing NodeSync Status
        • Configuring the NodeSync rate using LCM
        • NodeSync metrics
      • Repair Service
        • Repair Service overview
          • Subrange repairs overview
          • Distributed subrange overview
          • Incremental repairs overview
          • Repair Service behavior during environment changes
          • Estimating remaining repair time
        • Turning the Repair Service on
        • Turning the Repair Service off
        • Viewing repair status
        • Basic repair configuration
          • Configuring incremental repairs
          • Excluding keyspaces or tables from subrange repairs
          • Enabling distributed subrange repairs
          • Logging for the Repair Service
          • Basic Repair Service configuration reference
        • Advanced repair configuration
          • Adjusting or disabling the throttle for subrange repairs
          • Running validation compaction sequentially
          • Advanced Repair Service configuration reference
        • Expert repair configuration
          • Setting the maximum for parallel subrange repairs
          • Expert Repair Service configuration reference
          • Tuning Repair Service for multi-datacenter environments
        • Expedited Repair Service configuration
        • Troubleshoot Repair Service errors
        • Learn more about repairs
      • Capacity Service
        • Forecasting trends for metric graphs
        • Advanced forecast configuration
      • Best Practice Service
        • Configuring Best Practice service rules
        • Monitoring the results of Best Practice service scans
        • Best Practice Rules Reference
      • Performance Service
        • Performance Service Overview
        • Why use the OpsCenter Performance Service?
        • Enabling the OpsCenter Performance Service
        • Disabling the OpsCenter Performance Service
        • Setting permissions for the OpsCenter Performance Service
        • Tuning a database cluster with the Performance Service
          • Identifying and tuning slow queries
    • Identifying poorly performing tables
    • Monitoring node thread pool statistics
    • Troubleshooting OpsCenter
    • Lifecycle Manager
      • Overview of Lifecycle Manager
        • Supported capabilities
        • Defining the topology
        • Using configuration profiles
        • Defining repositories
        • Running jobs in LCM
          • Job types in LCM
          • Job concurrency in LCM
        • Monitoring job status
      • Installing DSE using LCM
        • Accessing OpsCenter Lifecycle Manager
        • Creating custom data directories
        • Adding SSH credentials
        • Adding a configuration profile
        • Adding a repository
        • Defining the cluster topology
          • Adding a cluster
          • Adding a datacenter
          • Adding a node
        • Running an installation job
        • Viewing job details
        • Using LCM in an offline environment
          • Required software for offline DSE installs
          • Downloading DSE in an offline environments
      • Managing SSH credentials
        • Adding SSH credentials
        • Editing SSH credentials
        • Deleting SSH credentials
        • Configuring SSH connection thresholds for LCM jobs
      • Managing configuration profiles
        • Adding a configuration profile
        • Editing a configuration profile
        • Customizing configuration profile files
        • Cloning a configuration profile
        • Deleting a configuration profile
        • Configuring an HTTP or HTTPS proxy
      • Configuring repositories
        • Adding a repository
        • Editing a repository
        • Deleting a repository
      • Defining DSE topologies
        • Managing cluster topologies
          • Adding a cluster
          • Editing a cluster
          • Deleting a cluster
          • Importing a cluster topology
        • Managing datacenter topologies
          • Adding a datacenter
          • Editing a datacenter
          • Deleting a datacenter
        • Managing node topologies
          • Adding a node
          • Editing a node
          • Deleting a node
      • Running LCM jobs
        • Running an installation job
        • Running an configure job
        • Running an upgrade job
          • Example: Upgrading DSE to a minor release using LCM
        • Aborting a job
        • Adjusting idle timeout
      • Configuring Java options
        • Choosing a Java vendor in LCM
        • Managing Java installs
        • Configuring JVM options for DSE using LCM
      • Configuring DSE security using LCM
        • Native transport authentication schemes and limitations in LCM
          • Configuring row-level access control
        • Configuring SSL/TLS for DSE
        • Configuring a JMX Connection to DSE
      • Lifecycle Manager configuration options
      • Configuration known issues and limitations
      • Using advanced configurations with LCM
        • Exporting metrics collection
        • Configuring AlwaysOn SQL
        • Configuring DSE Graph
        • Configuring the NodeSync rate
        • Configuring tiered storage
    • OpsCenter API reference for developers
      • Enable and access the Datastax Agent API
      • Authentication
      • OpsCenter configuration
      • Retrieving cluster and node information
      • Performing Cluster Operations
      • Managing Keyspaces and Tables
      • Retrieving Metric Data
      • Managing Events and Alerts
      • Schedule management
      • Backup Management and Restoring from Backups
      • Best Practice Rules
      • Hadoop
      • Spark
      • Managing Performance Service Configuration
      • User Interface
      • Agent Install and Status
      • Cluster Lifecycle Management
      • DataStax Agent API example curl commands
  • DataStax Enterprise OpsCenter 6.8
  • DSE Management Services
  • Backup Service
  • Backing up data
  • Backing up a cluster

Backing up a cluster

OpsCenter provides a way to schedule and run backup operations on a cluster. OpsCenter allows organizations to run one-time backup jobs as well as schedule backup jobs to run at a later date and on a recurring basis. Commit log backups facilitate restoring backup data to a particular date and time.

Keep the following caveats in mind when creating and restoring backups:

  • Restoring a snapshot that contains only the system keyspace is not allowed. There must be both system and non-system keyspaces, or only non-system keyspaces in the snapshot you want to restore.

  • Restoring a snapshot that does not contain a table definition is not allowed.

  • Restoring a snapshot to a location with insufficient disk space fails. The Restore Report indicates which nodes do not have sufficient space and how much space is necessary for a successful restore. For more information and tips for preventative measures, see Monitoring sufficient disk space for restoring backups.

  • OpsCenter does not back up indexes. Therefore, DSE must recompute the indexes after a restore.

Scheduled backup retention policies

Each scheduled backup has a retention policy that defines how OpsCenter handles the files for older backup data. The default policy is to retain On Server backup files for 30 days. The default retention policy for all backups except On Server is to retain all backups.

For each scheduled backup task and configured location, configure a time period to retain the snapshot data. OpsCenter supports minutes, hours, days, and weeks for the retention time period. For example, you can define a retention policy that removes snapshot data older than 30 days, or 26 weeks, or 3 hours. If you want to keep all backups, OpsCenter has a Retain All policy that retains the backup files indefinitely.

When a backup that was configured with a time-limited retention policy completes, OpsCenter scans the snapshot data for outdated files that do not belong to other snapshots and removes them at the next scheduled backup.

If removing old backup data manually, the backup.json and schema.json files can be manually deleted if the timestamp is past the retention policy. However, SSTable files should not be manually deleted, because deleting these files could impact all snapshots.

For example, consider a scheduled backup that sends data to Amazon S3, runs weekly, and has a retention policy of removing backups older than three days. The layout in the Amazon S3 bucket is as follows:

mybucket/
  snapshots/
    node-id1/
      sstables/
        MyKeyspace-MyTable-ic-4-Data.db
        MyKeyspace-MyTable-ic-5-Data.db
        MyKeyspace-MyTable-ic-6-Data.db
        MyKeyspace-MyTable-ic-7-Data.db
        ...
      1234-ABCD-2018-01-25-01-00/
        backup.json #includes 4-Data and 5-Data
        MyKeyspace/schema.json
      1234-ABCD-2018-02-01-01-00/
        backup.json #includes 5,6,7-Data
        MyKeyspace/schema.json

After the February 1 backup completes, OpsCenter scans the SSTables for outdated files according to the retention policy, and removes the January 25 backup files. Because MyKeyspace-MyTable-ic-4-Data.db was in the January 25 backup but not in the February 1 backup, it is removed. Even though MyKeyspace-MyTable-ic-5-Data.db was in the January 25 backup, it is also in the latest backup, so it is retained until it meets its defined retention policy.

Managing cluster backups

  • Creating a recurring scheduled backup

  • Editing or deleting scheduled backups

  • Scheduling a one-off backup

  • Running an ad hoc backup

  • Syncing a snapshot to a location

Backing up data Backing up to Amazon S3

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