About OpsCenter
DataStax OpsCenter is a visual management and monitoring solution for Apache Cassandra and DataStax Enterprise.
What's new
New features for the most current major release.
DataStax OpsCenter Policy Changes
DataStax policy change for products compatible with DataStax OpsCenter.
Key features
DataStax OpsCenter offers features to more easily manage both DataStax Enterprise and Apache Cassandra clusters.
OpsCenter architecture overview
Basic architecture diagram and brief explanation.
Installing OpsCenter
OpsCenter installation options include GUI standalone installer, package installations using YUM and APT, and binary tarball.
Installing OpsCenter with the standalone installer for Linux or Mac OS X
Installs the DataStax OpsCenter web application with a standalone GUI installer on Mac OS X (dev only), or on any Linux distribution.
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.
Uninstalling OpsCenter
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.
OpsCenter Reference
Upgrading OpsCenter
OpsCenter Security
Security configuration options and instructions.
Configuring events and alerts
The OpsCenter Event Log page in the Activities section displays a continuously updated list of events and alerts.
Configuring data collection and expiration
OpsCenter collects system and table metrics data for each node in a cluster.
Configuring automatic updates of OpsCenter definition files
OpsCenter uses definition files to enable support for different versions of DataStax Enterprise, DataStax Community, and Cassandra without the need to upgrade the currently installed version of OpsCenter itself.
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.
Configuration files
Configure capabilities by manually modifying the opscenterd.conf, cluster_name.conf, and address.yaml configuration files.
Customize scripts for starting and stopping DataStax Enterprise and Cassandra
OpsCenter allows starting and stopping the DataStax Enterprise/Cassandra process on each node in a visual manner. Customize the startup or shutdown of a node using the provided example scripts.
Example scenarios
Example scenarios of OpsCenter deployments include configuring for multiple regions, IP forwarding, or very large clusters.
Using OpsCenter
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.
Logging in and out using OpsCenter authentication
Describes logging in and out of OpsCenter and changing the user password when authentication is enabled.
Provisioning clusters
Provision a new Cassandra or DataStax Enterprise cluster locally or in the cloud using OpsCenter. Provision DataStax Enterprise clusters to multiple datacenters.
Node monitoring and administration
From the Nodes section of OpsCenter, select different views (Ring or List) of the nodes that comprise a Cassandra cluster and perform node management.
Managing keyspaces and tables
Manage keyspaces and the tables within keyspaces.
Cluster administration
OpsCenter manages multiple DataStax Enterprise or Apache Cassandra 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.
Performance metrics
Monitor performance metrics in the OpsCenter Dashboard. Real-time and historical performance metrics are available at different granularities: cluster-wide, per node, or per table (column family).
DSE Management Services
DataStax Enterprise comes bundled with enterprise management services that you can configure and run using 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.
Solving provisioning problems
Troubleshooting tips for typical provisioning issues.
Troubleshooting SSL
Troubleshooting tips for typical SSL issues.
Browser issues
Troubleshoot browser issues that can prevent the OpsCenter UI from loading properly. Review currently supported browsers.
Troubleshooting SSTables
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.
Java not installed or JAVA_HOME environment variable not set
Error when Java is not installed or the path is not set.
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 API reference
OpsCenter 5.2.5 Release Notes
Release notes for the OpsCenter version 5.2.5 release.
OpsCenter 5.2.4 Release Notes
Release notes for the OpsCenter version 5.2.4 release.
OpsCenter 5.2.3 Release Notes
Release notes for the OpsCenter version 5.2.3 release.
OpsCenter 5.2.2 Release Notes
Release notes for the OpsCenter version 5.2.2 release.
OpsCenter 5.2.1 Release Notes
Release notes for the OpsCenter version 5.2.1 release.
OpsCenter 5.2.0 Release Notes
Release notes for the OpsCenter version 5.2.0 release.
Using the docs