Increasing the Detail in the Workload Balancing Log
The Workload Balancing log provides a list of events on the Workload Balancing virtual appliance, including actions for the analysis engine, database, and audit log. This log file is found in this location: /var/log/wlb/ LogFile.log.
You can, if desired, increase the level of detail the Workload Balancing log provides. To do so, modify the Trace flags section of the Workload Balancing configuration file (wlb.conf), which is found in the following location: / opt/citrix/wlb/wlb.conf. Enter a 1 to enable logging for a specific trace and a 2 to disable logging. For example, to enable logging for the Analysis Engine trace, enter:
<AnalEngTrace>1</AnalEngTrace>
You may want to increase logging detail before reporting an issue to Citrix Technical Support or when troubleshooting.
Logging |
| Trace Flag | Benefit or Purpose |
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Option |
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Analysis |
| AnalEngTrace | Logs details of the analysis engine calculations. |
Engine |
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| Shows details of the decisions the analysis engine is making and |
Trace |
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| potentially gain insight into the reasons Workload Balancing is |
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| not making recommendations. |
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Database |
| DatabaseTrace | Logs details about database reads/writes. |
Trace |
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| However, leaving this trace on will increase the log file size |
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| quickly. |
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Data |
| DataCollectionTrace | Logs the actions of retrieving metrics. |
Collection |
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| This lets you see the metrics Workload Balancing is retrieving |
Trace |
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| and inserting into the Workload Balancing data store. However, |
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| leaving this trace on will increase the log file size quickly. |
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Data |
| DataCompactionTrace | Logs details about how many milliseconds it took to compact |
Compaction |
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| the metric data. |
Trace |
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Data Event |
| DataEventTrace | This trace provides details about events Workload Balancing |
Trace |
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| catches from XenServer. |
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Data |
| DataGroomingTrace | This trace provides details about the database grooming. |
Grooming |
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Trace |
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Data |
| DataMetricsTrace | Logs details about the parsing of metric data. |
Metrics |
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| Leaving this trace on will increase the |
Trace |
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Queue |
| QueueManagementTrace | Logs details about data collection queue management |
Management |
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| processing. |
Trace |
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| (This is for internal use.) |
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