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DSE Version: 6.0

DSE OpsCenter Intro

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OpsCenter is a visual (browser-based) tool for creating and managing DSE Clusters. This learning unit will give you an overview of what OpsCenter can do to help you configure and manage your clusters.

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Write Up

Introduction

OpsCenter is a visual (browser-based) tool for creating and managing DSE Clusters. What we commonly refer to as OpsCenter actually has two parts: OpsCenter proper and Lifecycle Manager. Lifecycle Manager contains facilities for creating clusters, keeping track of cluster credentials, archiving node configuration profiles and software repository access credentials. OpsCenter has responsibility for managing clusters. OpsCenter provides a dashboard so administrators can monitor cluster health, as well as perform various maintenance tasks.

OpsCenter greatly simplifies managing DSE clusters. OpsCenter has mechanisms and buttons to perform sophisticated management tasks. This alleviates the hassle of writing management scripts and making sure they work according to best practices. Also, OpsCenter can manage multiple clusters of all sizes. OpsCenter simplifies administration tasks such as:

  • Adding and expanding clusters
  • Configuring nodes
  • Viewing performance metrics
  • Rectifying issues
  • Monitoring cluster health on the dashboard

OpsCenter has several panels for managing clusters. These panels include:

  • Nodes
  • Dashboard
  • Activites
  • Data
  • Services

Administrators can access these panels via selection icons on the left side of the display as shown in Figure 1.

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Figure 1. Panel Access Icons on Left Side of Display.

The Nodes Panel

The Nodes panel gives a quick overview of the current cluster state as shown in Figure 2.

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Figure 2. OpsCenter Nodes Panel.

 

The top portion of the panel shows the current status in terms of the cluster health, the amount of data in the cluster and the services which are running for the cluster. The bottom portion of the panel give a quick-glance view of the cluster, its nodes and their individual health.

The Dashboard Panel

The Dashboard panel is a user configurable panel. It is a set of widgets for tracking metrics of interest as shown in Figure 3.

https://lh3.googleusercontent.com/Je_Yr6U9btUftCdQZjVurJa3ZuWIhzFW74_KEKdVCh2P52EtN7FAWTVJr0lMetLwQSFhCcGszOERYlW3ylkzfMEl1nkbz_qDO1bwAxBIanrcYzRE1dtGmxGyE2UzarlKjVRJ41Jc

Figure 3. Dashboard Panel.

Administrators can add or remove widgets from the dashboard. The list of widgets includes:

  • Active Alerts
  • Cluster Health
  • Storage Capacity
  • Write Requests
  • Write Request Latency
  • Write Failures
  • Read Requests
  • Read Request Latency
  • Read Timeouts
  • Read Unavailable Errors
  • Disk Utilization
  • Processor Load
  • Datacenter Messaging Latency
  • Node Messaging Latency

These widgets also allow a “forecast” mode which projects trends.

The Activities Panel

The Activities panel is a historical view of previous activities that administrators have performed. You can also access and event log from this panel that shows the events that have occurred with respect to the cluster in OpsCenter.

The Services Panel

The Services panel lets you enable, customize or disable management services. These management services simplify cluster management. These services include:

  • Backup - automates backing up your clusters
  • NodeSync - Maintains data consistency across your cluster
  • Best Practices - monitors your use of best administrative practices
  • Capacity - collects statistical data for trend and forecast analysis
  • Performance - collects data to help tune cluster performance

Conclusion

OpsCenter allows you to manage your DSE clusters with confidence. With OpsCenter, you know that you are using well-tested procedures to manage your cluster. OpsCenter lets you manage larger clusters with fewer people.

Exercises
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FAQ

I am already managing a cluster, but would like to start using OpsCenter. Can I switch over without recreating the cluster?

Yes, LifeCycle Manager lets you either create a new cluster or manage an existing cluster.