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Spotlight on Oracle 10.4 - Getting Started Guide

Welcome to Spotlight Install Spotlight Start Spotlight Spotlight on Oracle Spotlight on Oracle Data Guard Spotlight on Oracle RAC Spotlight on Unix Spotlight on Windows Spotlight on MySQL Troubleshooting: Connection Problems

Cluster Latency Alarm

The Cluster Latency alarm is raised when cluster latency from all causes (interconnect, GES, LMS overhead) exceeds a specified threshold. Possible causes for this alarm are:

  • High interconnect latency caused by overloading of the cluster interconnect.
  • Queuing or overloading of GES (Global Enqueue Services) processes or LMS global cache service processes.
  • A large amount of cache fusion activity.

Possible solutions to this problem include:

  • Increasing the bandwidth of the cluster interconnect.
  • Configuring additional GES or LMS processes.


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