MuleSoft Exam MCD-Level-2 Topic 1 Question 4 Discussion

Actual exam question for MuleSoft's MCD-Level-2 exam

Question #: 4
Topic #: 1

[All MCD-Level-2 Questions]

A Mule application for processing orders must log the order ID for every log message output.

What is a best practice to enrich every log message with the order ID?

AUse flow variables within every logger processor to log the order ID

BSet a flow variable and edit the log4/2.xml file to output the variable as part of the message pattern

CCreate a custom XML SDK component to wrap the logger processor and automatically add the order ID within the connector

DUse the Tracing module to set logging variables with a Mapped Diagnostic Context

Show Suggested Answer

Suggested Answer: D

To enrich every log message with the order ID, the developer should use the Tracing module to set logging variables with a Mapped Diagnostic Context (MDC). The Tracing module allows adding custom key-value pairs to log messages using MDC variables. The developer can use Set Logging Variables operation to set the order ID as an MDC variable and then use it in any logger processor within the same thread or event. Reference: https://docs.mulesoft.com/tracing-module/1.0/tracing-module-reference#set-logging-variables

by Hermila at Apr 10, 2024, 10:44 AM

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Polly

8 days ago

I agree, but I'm not sure about the best approach. Option A seems like it could work, but it might make the code a bit messier to manage. Option B sounds promising, but modifying the log4j/2.xml file could be a bit of a hassle.

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Gail

10 days ago

I think this is a great question to test our understanding of best practices for logging in Mule applications. Enriching log messages with relevant context is crucial for effective troubleshooting and monitoring.

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