General trace and log analysis patterns allow the application of uniform diagnostics and anomaly detection across diverse software environments. It includes troubleshooting, debugging, describing, and explaining problems and incidents on various operating systems and platforms. It is also helpful in recording network traces, malware, general data, narratives, and text and image analysis (space-like narratology). This course, organized as a pattern language dictionary and cross-referenced with classification, explains and teaches more than 200 traces and log analysis patterns.

A Guide to Learning Software Trace and Log Analysis Patterns

## Ruptured trace
Recently we analyzed a few logs that ended with a specialized [activity region](https://www.educative.io/courses/guide-learning-software-trace-log-analysis-patterns/region-theatre-adjoint-thread-blackout-braid-group) from a subsystem that sets operational parameters. The problem description stated that the system became unresponsive after changing parameters in a certain sequence. Usually, for this system, when we stop logging (even after setting parameters), we end up with messages from some [background components](https://www.educative.io/courses/guide-learning-software-trace-log-analysis-patterns/foreground-characteristic-cotrace-critical-event). This occurs because some time passes between the setting of the parameters and the time that elapses till the operator stops logging request.

# Ruptured trace
Recently we analyzed a few logs that ended with a specialized [activity region](https://www.educative.io/courses/guide-learning-software-trace-log-analysis-patterns/region-theatre-adjoint-thread-blackout-braid-group) from a subsystem that sets operational parameters. The problem description stated that the system became unresponsive after changing parameters in a certain sequence. Usually, for this system, when we stop logging (even after setting parameters), we end up with messages from some [background components](https://www.educative.io/courses/guide-learning-software-trace-log-analysis-patterns/foreground-characteristic-cotrace-critical-event). This occurs because some time passes between the setting of the parameters and the time that elapses till the operator stops logging request.

This lesson introduces the following analysis patterns: ruptured trace, strand of activity, thread of activity, time delta, timeout, and weave of activity.

Getting Started

Activity

Block and Data

Error and Large Scale

Message 1

Message 2

Trace as a Whole

Trace Set

Vocabulary, Memory, Code and Text

Conclusion

Index

Ruptured, Strand, Thread, Time Delta, Timeout, Weave

Ruptured trace