Cluster Load Manager 101

Douglas PotterIBI Minneapolis

User Group November 2008

What is Cluster Load Manager?

CLM is an intelligent, autonomic server that provides automatic monitoring, management, and load distribution across a group or cluster of Reporting Servers.

CLM is Self-Aware – It knows what resources it has available, and

how these resources are functioning Self-Healing – It utilizes its awareness to correct problems

in the delivery of service Self-Optimizing – It is continuously adjusting its resources

to keep within the limits of performance needed Highly Available – It is, itself, a distributed, redundant

service.

That sounds cool, but…

What does that really mean?CLM provides a Reporting Server environment that is

Highly AvailableMultiple Reporting Servers avoid single point of failure

due to server resource limits, hardware failure, etc. Highly Scalable

Can add servers as needed (within license limits) to meet demand

Easily ManagedSingle screen shows the status of all servers in the

cluster

.

How is CLM different from other options ?

WebFOCUS Alternate Servers Older, simpler cluster mechanism No proactive monitoring of Reporting Servers Non-intelligent distribution of requests

Other 3rd party workload distributers (F5, Cisco, etc.) Can monitor for system failure Don’t monitor Reporting Server statistics Limited intelligence in the distribution of requests

OS level clustering Can protect against system failure Does not monitor Reporting Server statistics Limited intelligence in the distribution of requests

None of these adjust the Reporting Server environment to meet SLAs

Request processing

Where do I configure that in the Client?

As of 7.6.7, you can configure the CLM nodes in the GUI

Do I have CLM? Where is it installed in my environment?

It is a licensed component that can be installed independent of any other WebFOCUS software.

Recommended to (ideally) be installed on its own machine, or with the WebFOCUS Client, but not on the Reporting Server machines.

For business critical systems, implement CLM Failover.

What does this get me?

■ Lower total cost of ownership

■ Higher system up-time

■ Less human expertise needed

■ More uniform response time

■ More insight into system operations

Any Questions?