DataStax OpsCenter is a visual management and monitoring solution for DataStax Enterprise. OpsCenter Lifecycle Manager (LCM) provisions DataStax Enterprise (DSE) clusters and centrally manages cluster configurations.
New and improved features for the most current major release of OpsCenter Monitoring and Lifecycle Manager for DataStax Enterprise clusters.
DataStax OpsCenter offers features to more easily manage DataStax Enterprise clusters.
OpsCenter architecture overview
Basic architecture diagram and a brief explanation of connection protocols.
DataStax OpsCenter Policy Changes
DataStax policy change for products compatible with DataStax OpsCenter.
OpsCenter installation options include package installations using YUM and APT, and binary tarball.
Installing OpsCenter from the RPM package
Install the DataStax OpsCenter using Yum repositories on RedHat Enterprise Linux (RHEL), CentOS, and Oracle Linux (OL) distributions.
Installing OpsCenter from the Debian package
Install DataStax OpsCenter using APT repositories on Debian or Ubuntu distributions.
Installing OpsCenter on Mac OS X or any Linux distribution
Install the DataStax OpsCenter on Mac OS X or any Linux Distribution using the OpsCenter binary tarball.
Instructions to uninstall OpsCenter for all installation methods: standalone, RPM, Debian, or tarball.
Installing DataStax Agents
DataStax agents must be installed on every managed node in a cluster and are necessary to perform most of the functionality within OpsCenter.
Ports reference, instructions for starting and stopping OpsCenter and DataStax Agents, default file locations, and a startup log for OpsCenter.
Instructions for upgrading OpsCenter are available in the DataStax Upgrade Guide.
Configure security features, alerts, failover, and much more in OpsCenter.
Security configuration options and instructions.
Configuring alerts for events
Configure email alerts, post alerts to a URL, or enable SNMP traps for integrations with enterprise reporting systems.
Configuring data collection and expiration
OpsCenter collects system and table metrics data for each node in a cluster.
OpsCenter DSE definitions files updates
OpsCenter uses definition files to enable support for different versions of DataStax Enterprise without the need to upgrade the currently installed version of OpsCenter.
Automatic failover overview
Automatic failover from the primary DataStax OpsCenter instance to the backup OpsCenter instance provides high availability without any manual intervention or downtime.
Configuring named route linking
Enable route URL deep linking within the UI, which allows URL navigating to locations within the OpsCenter UI web application.
Sending OpsCenter metrics to a Graphite server
Configure sending metrics from OpsCenter to a Graphite server. This is an OpsCenter Labs feature in development.
Configuring the OpsCenter JVM
How to configure the JVM parameters for the OpsCenter JVM.
Configuring the DataStax Agent JVM
How to configure the JVM parameters for the DataStax Agent JVM.
Changing the replication strategy for the OpsCenter keyspace
Using the NetworkTopologyStrategy replication is recommended for the OpsCenter keyspace when running OpsCenter in a multi-datacenter environment.
Configuration files for OpsCenter
Configure capabilities by manually modifying the opscenterd.conf, cluster_name.conf, and address.yaml configuration files.
Customize scripts for starting and stopping DataStax Enterprise
OpsCenter allows starting and stopping the DataStax Enterprise process on each node in a visual manner. Customize the startup or shutdown of a node using the provided example scripts.
Example configuration scenarios
Example scenarios of OpsCenter deployments include configuring for multiple regions or very large clusters.
OpsCenter is a Web application for monitoring and administering all nodes in a Cassandra cluster from one centralized console. OpsCenter runs on the client-side in a web browser.
OpsCenter Workspace Overview
Introduces the major areas of functionality available in the OpsCenter workspace.
Node monitoring and administration
From the Nodes section of OpsCenter, select different views (Ring or List) of the nodes that comprise a DataStax Enterprise cluster and perform node management. View the status of agents, install and upgrade agents, and troubleshoot any agent issues in the Agents view.
Managing keyspaces and tables
Manage keyspaces and the tables within keyspaces.
OpsCenter manages multiple DataStax Enterprise clusters with a single install of the central opscenterd server. Administer your clusters using the options available from the Cluster Actions menu. Generate reports from the Help menu.
Dashboard performance metrics
Monitor performance metrics in the OpsCenter Dashboard. Real-time and historical performance metrics are available at different granularities: cluster-wide, per node, per table (column family), or storage tier.
DSE Management Services
DataStax Enterprise comes bundled with enterprise management services that you can configure and run using OpsCenter.
The Backup Service provides automatic scheduled backup, manual backup, and manual restore of DSE cluster data.
The Repair Service performs repairs across a DataStax Enterprise cluster with minimal impact to cluster performance.
Using trend analysis and forecasting, the Capacity Service helps you understand cluster performance within its current environment and workload, and gain a better sense of how time affects those trends, both past and future.
Best Practice Service
The Best Practice service allows scheduling pre-defined best practice rules that check various properties of clusters and environments and report back which nodes pass or fail the rules.
The OpsCenter Performance Service combines OpsCenter metrics with CQL-based diagnostic tables populated by the DSE Performance Service to help understand, tune, and optimize cluster performance. Visually enable the performance objects and analyze the results within OpsCenter.
This section lists some issues experienced with OpsCenter and solutions or workarounds.
High CPU usage by opscenterd
Increasing the nodelist polling period or setting a sleep delay can reduce excessive CPU usage when starting or running opscenterd.
Troubleshooting tips for typical SSL issues.
Troubleshoot browser issues that can prevent the OpsCenter UI from loading properly. Review currently supported browsers.
Rectify issues encountered surrounding SSTables.
Troubleshooting collecting or displaying metrics
Adjust configuration settings to manage and display metrics.
OpsCenter data growing too large
For OpsCenter versions prior to 3.2.1, truncate tables to reclaim space.
Cannot create a keyspace
Upgrade Python if you encounter any difficulty adding a keyspace in OpsCenter prior to version 5.2.
DataStax agent port setting conflict
Ensure there are no conflicts with port 7199 used by the DataStax Agent.
Insufficient user resource limits errors
Refer to the recommended settings for insufficient user resource limits errors in the Cassandra documentation.
Installing EPEL on CentOS 5.x or RHEL 5.x
EPEL is a prerequisite for OpsCenter on CentOS 5.x or RHEL 5.x.
Error getting version update information
Disables the check for the latest versions of OpsCenter and DataStax Enterprise.
OpsCenter cannot start up
Steps to take when OpsCenter cannot start up due to improper directory permissions.
Simplify deploying and configuring DataStax Enterprise clusters with Lifecycle Manager.
Lifecycle Manager overview
An introduction to Lifecycle Manager (LCM) for provisioning DataStax Enterprise (DSE) clusters and centrally managing configurations. Simplify deploying and configuring DataStax Enterprise clusters with Lifecycle Manager.
Lifecycle Manager: Clusters
Create and manage the DataStax Enterprise cluster topology model in the Clusters workspace of Lifecycle Manager. Run install and configure jobs at the cluster, datacenter, or node level.
Lifecycle Manager: Jobs
View a summary and drill into details of install, configure, and import jobs in Lifecycle Manager. Monitor the progress of running jobs. Troubleshoot failed and abort idle jobs.
Lifecycle Manager: Repositories
Repositories use predefined credentials for automatically downloading Debian or RPM packages from the DataStax Enterprise repository or from a private repository that is an internal mirror of the DataStax repository.
Lifecycle Manager: SSH Credentials
SSH credentials allow securely connecting to machines without repeatedly entering credentials for each DataStax Enterprise install, configure, or import job. Define SSH credentials for cluster, datacenter, or node levels.
Lifecycle Manager: Configuration Profiles
Define centrally-managed configuration profiles to enforce uniform configuration at the cluster, datacenter, or node level.
OpsCenter API reference for developers
OpsCenter RESTful API provides programmatic management for monitoring and managing DataStax Enterprise clusters.
Enable and access the DataStax Agent API
Enable and access the interactive Swagger UI console for the DataStax Agent API.
OpsCenter release notes provide information about new and improved features, known and resolved issues, and bug fixes.
OpsCenter 6.1.0 Release Notes
Release notes for the OpsCenter version 6.1.0 release.
Known and resolved issues for OpsCenter 6.x
Known issues, workarounds, and resolved issues for the OpsCenter and Lifecycle Manager 6.0 and later versions.