Question 1

How to create a custom log profile in ULogViewer?

Accepted Answer

Use the built-in profile editor in ULogViewer to define log format patterns, or leverage scripting with IronPython or JavaScript for complex parsing, as detailed in the extensibility features.

Question 2

ULogViewer vs. LogFusion or BareTail, which is better?

Accepted Answer

ULogViewer offers cross-platform support and scripting extensibility, while LogFusion is Windows-only and BareTail is lightweight but limited. For heterogeneous environments needing customization, ULogViewer is superior.

Question 3

Can ULogViewer monitor logs in real-time?

Accepted Answer

Yes, ULogViewer supports reading logs from standard output and HTTP streams, allowing real-time monitoring of live log sources as they are generated, similar to tailing files.

Question 4

What scripting languages does ULogViewer support?

Accepted Answer

ULogViewer supports IronPython (Python 3) and JavaScript via Jint, enabling users to write custom scripts for log parsing, filtering, and automation, as listed in dependencies.

Question 5

How to filter out specific error messages in ULogViewer?

Accepted Answer

Use the exclusionary text filter feature from version 4.1 to define patterns that exclude logs with matching text, combined with log-level filtering for more granular control.

Question 6

Does ULogViewer work with JSON log files?

Accepted Answer

Yes, through custom log profiles or the built-in CLEF format support, ULogViewer can parse JSON logs by defining the structure or using scripting for flexibility.

ULogViewer

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