© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.1

Advanced Coherence MonitoringWith RTView Oracle Coherence Monitor (OCM) 6.0

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.2

Speakers & Agenda

• Everett Williams, Senior Technology Director, SL Corporation

• Marie Hoch, Director of Sales, SL Corporation

Agenda• RTView Oracle Coherence Monitor History• We suggest these eight OCM alerts for every cluster• Deep dive discussion of four alerts• Event management in RTView OCM—high level overview• Q&A• Feedback on other OCM webinar topics

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.3

• OCM 6.0.0 released April 2013

• Six years since SL released OCM 1.0

• Coherence has changed, customer needs have changed, the monitor supports more types of users

RTView Oracle Coherence Monitor History

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.5

EIGHT Suggested Alerts for Monitoring Most Coherence Clusters

• Departed Node*• Bad Communication Cluster• Low Available Memory after Garbage Collection*• High GC Duty Cycle• Store Failures* • High Task Backlog• High JMX Processing Time*• No JMX Connection

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.6

Departed Node

• OcDepartedNode and OcDepartedNodePercentage• Why is this one important?• What could happen?• How to troubleshoot?• DepartedNode or DepartedNodePercentage or both?• What threshold? What Duration?

“Someone’s always gotta die…. Mark Falco, Oracle

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.7

Post Garbage Collection Memory

• OcMemoryUsedPercentageAfterGC• Why has everyone been asking for this?• What conditions can it detect?• How to troubleshoot?• Other GC alerts in the OCM (GC Durations and GC Duty

Cycle)

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.8

Store Failures – Data Persistence

• OcStoreFailures• What conditions can it detect?• Why could happen ?• How to troubleshoot?• Understanding other database persistence metrics in

Coherence ( store reads, store writes, write queues)• Warning and alarm thresholds? Duration?

Coherence doesn’t know if your database is up or down.

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.9

High JMX Processing Time

• OcJMXProcessingTime• What is it? Why should you care?• How does the Coherence Management Service Work?• Why is it important?• What conditions will trigger it?• How to troubleshoot?• What threshold should you set?

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.10

Alerting in RTView Oracle Coherence Monitor

• Configuring alerts and thresholds• OCM event console • Automating alert actions, sending event to other event

consoles, sending emails

© 2012 SL Corporation. All Rights Reserved.

© 2013 SL Corporation. All Rights Reserved.11

Questions and Discussion

Suggestion: Give us a sample Coherence problem you would like to troubleshoot or monitor. Everett will walk you through where to look

in the monitor, what alerts to configure to detect it.

• Your comments on these webinar topics:– Proxy clients, proxy connections new 6.0 features deep dive– OCM 6.0.0 upgrade for current customers– Centralized console for Coherence clusters and applications:

RTView Enterprise Monitor and OCM 6.0

Thank you for attending our webinar!!