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OpsCenter 5.1 User Guide
(Not supported)
About OpsCenter
Key features
OpsCenter Architecture Overview
Installation
Installing OpsCenter
Installing OpsCenter with the standalone installer for Mac OS or Linux
Other install methods
Installing DataStax agents
Manually deploying agents - tarball
Manually deploying agents - rpm
Manually deploying agents - deb
Automatic installation of DataStax agents
Setting permissions to run the agent as a different user
Configuring JAVA_HOME for DataStax agents
OpsCenter and DataStax agent ports
Installation and configuration locations
Debian and Ubuntu Package install locations
CentOS, OEL, and RHEL Package install locations
Binary Tarball distribution install locations
Starting, stopping, and restarting OpsCenter
Starting and restarting DataStax agents
Upgrading OpsCenter
Configuration
Configuring role-based security
About user access roles
Enabling authentication in OpsCenter
Managing users and roles
Migrating users to the new password database
Changing the location of the password database
Configuring SSL
Enabling SSL - package installations
Enabling SSL - tarball installations
Disabling SSL - package installations
Disabling SSL - tarball installations
Enabling HTTPS
Using Kerberos authentication with OpsCenter
Configuring events and alerts
Enabling email alerts
Enabling alerts posted to a URL
Event action types
Configuring an alert for KMIP errors
Configuring data collection and expiration
Estimating the amount of metrics data generated
Controlling data collection
Storing collection data on a different cluster
Configuring automatic updates of OpsCenter definition files
Automatic failover overview
Enabling automatic failover
Configuration files
OpsCenter configuration properties
Cluster configuration properties
address.yaml
Customize scripts for starting and stopping DataStax Enterprise and Cassandra
Example scenarios
Configuring for multiple regions
Configuring for very large clusters
Using OpsCenter
OpsCenter Workspace Overview
Using OpsCenter authentication
Managing clusters
Creating a cluster
Adding an existing cluster
Retrying a failed install
Modifying OpsCenter cluster connections
Node monitoring and administration
Ring View
List View
Node management operations
Cluster administration
Generating a PDF report
Collecting and downloading diagnostic data
Configuring a cluster
Adding a node to a cluster
Removing a cluster
Rebalancing a cluster
Restarting a cluster
Changing the display name of a cluster
Performance metrics
Viewing performance metrics
Cluster performance metrics
Pending task metrics
Column family performance metrics
Search performance metrics
Operating system performance metrics
Alert metrics
OpsCenter Metrics Tooltips Reference
DSE Management Services
Backup Service
Repair Service
Capacity Service
Best Practice Service
Data modeling
Keyspaces
Browsing data
Troubleshooting
High CPU usage by opscenterd
Troubleshooting SSL validation for self-signed certificates
Zero nodes detected in cluster
Internet Explorer web browser not supported
The SSTables in this snapshot '<tag>' are not compatible
OpsCenter data growing too large
Cannot create a keyspace
Error
exceptions.ImportError:libssl.so.0.9.8
Python used to run OpsCenter not built with SSL
DataStax agent port setting conflict
Limiting the metrics collected by OpsCenter
Java not installed or JAVA_HOME environment variable not set
Insufficient user resource limits errors
Installing EPEL on CentOS 5.x or RHEL 5.x
Problems with provisioning
General troubleshooting steps
Invalid repository credentials
Timed out waiting for Cassandra to start
The following packages are already installed
Removing all Cassandra or DSE files after failed provisioning
Agents cannot connect to opscenterd
OpsCenter cannot create a local cluster using a public IP address
Problems running
sstableloader
Timeout connecting to Cassandra 2.0 clusters
Sophos Web Protection breaks browser access to OpsCenter on Windows
Error getting version update information
OpsCenter API reference
Release Notes
OpsCenter 5.1.4 Release Notes
OpsCenter 5.1.3 Release Notes
OpsCenter 5.1.2 Release Notes
OpsCenter 5.1.1 Release Notes
OpsCenter 5.1.0 Release Notes
Feedback
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Troubleshooting
Problems with provisioning
Problems with provisioning
Troubleshooting tips for typical provisioning issues.
General troubleshooting steps
Basic troubleshooting for resolving errors include checking firewalls, logs, and prior installs.
Invalid repository credentials
Error messages encountered if using invalid credentials when installing DSE.
Timed out waiting for Cassandra to start
Check the Cassandra system log for timeout errors.
The following packages are already installed
Error that indicates Cassandra or DSE is already installed on the system. Before provisioning a new cluster in OpsCenter, remove any instances of Cassandra or DSE.
Removing all Cassandra or DSE files after failed provisioning
Prior to retrying provisioning, remove Cassandra or DSE.
Agents cannot connect to opscenterd
Investigate and resolve the installed agent is unresponsive error.
OpsCenter cannot create a local cluster using a public IP address
Use a private IP address if you encounter difficulty creating a local cluster with a public IP address.
Troubleshooting
High CPU usage by opscenterd
Troubleshooting SSL validation for self-signed certificates
Zero nodes detected in cluster
Internet Explorer web browser not supported
The SSTables in this snapshot '<tag>' are not compatible
OpsCenter data growing too large
Cannot create a keyspace
Error exceptions.ImportError:libssl.so.0.9.8
Python used to run OpsCenter not built with SSL
DataStax agent port setting conflict
Limiting the metrics collected by OpsCenter
Java not installed or JAVA_HOME environment variable not set
Insufficient user resource limits errors
Installing EPEL on CentOS 5.x or RHEL 5.x
Problems with provisioning
General troubleshooting steps
Invalid repository credentials
Timed out waiting for Cassandra to start
The following packages are already installed
Removing all Cassandra or DSE files after failed provisioning
Agents cannot connect to opscenterd
OpsCenter cannot create a local cluster using a public IP address
Problems running sstableloader
Timeout connecting to Cassandra 2.0 clusters
Sophos Web Protection breaks browser access to OpsCenter on Windows
Error getting version update information
