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Foglight 5.9.1 - Performance Tuning Field Guide

Overview Hardware and Operating System Tuning Management Server Tuning Java Virtual Machine Tuning Backend Database Tuning High Availability (HA) Tuning Agent Tuning Appendix: Performance Health Check Appendix: Analyzing a Support Bundle

Appendix: Analyzing a Support Bundle

The support bundle is the first line analytic tool for checking the performance of the server. It can be generated through the command-line interface or through the Administration > Setup and Support > Manage Support Bundles dashboard.

This appendix describes what to look for in the support bundle.

Server Log

The support bundle contains server log files. The log files are located in <foglight_home>/logs/ and their names adhere to the following format:


Topology Sync

Derivation and Rule Service synchronize their state against the topology whenever topology changes. Frequent topology changes may cause frequent synchronization effort, and this is noteworthy. The length of time it takes for a synchronization indicates overall load or topology complexity. Take note of the frequency and length of the following message bracket:

Topology Limits

Foglight™ restricts the number of instances of an object of any type to 10000. When this limit is reached, the event is logged and should be investigated. Either it is an exceptional situation or the limit has to be raised (per type, using the foglight.limit.instances registry variable).

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