When using StructuredTaskScope from JEP 453 in Java 21+ and forking multiple tasks, I'd like to have MDC values propagated to the forks, so that all logs are properly correlated. Extending the exam...

I have a spring-boot web application which makes use of logback's MDC context to enrich the log with custom data. I have the following implementation in place which makes available some custom data...

After going back to an older project and getting around to update its dependencies I had to realize that logback does not anymore propagate MDCs to children since version 1.1.5: https://github.com/...

We use SLF4J (with log4j) as our logging framework. We are trying to leverage the MDC feature which as per online documentation is supported by Log4j. MDC does not work when SLF4J is used. However,...

Following up on How to use MDC with thread pools? how can one use MDC with a ForkJoinPool? Specifically, I how can one wrap a ForkJoinTask so MDC values are set before executing a task?

I am adding some context info to log records using MDC: MDC.put("Correlation-ID", UUID.randomUUID().toString()); I am using following logback encoder: <encoder class="ch.qos.lo...

As in log4j we have an option to set a default value against an MDC key like this - mdc{key:-defaultVal} Do we have something similar in log4j 2 ?

Problem I have a Spring-Boot application in which I am also starting a gRPC server/service. Both the servlet and gRPC code send requests to a common object to process the request. When the request ...

Here is the code which I use to add filter to headers and add a UUID @Slf4j public class ReqTxIdFilterImpl implements Filter { @Override public void doFilter(ServletRequest servletRequest, Serv...

Short Version (With Enough Details) How to preserve the MDC attribute added in a doFilter() method of a javax.servlet.Filter implementation ... public void doFilter(ServletRequest request, Servle...

I use slf4j for logging in my project. And i want to use MDC for logging user ID parameters. So i check tutorials and doc, and make code like: MDC.put("key", userId) userId actually is a string....

Using Spring MVC, I have the following setup: An AbstractRequestLoggingFilter derived filter for logging requests. A TaskDecorator to marshal the MDC context mapping from the web request thread t...

(UPDATE: My question seems to be same as this one, but it has no effective answer.) I'm trying logging on Spring Boot ErrorController, but it's logs don't have MDC value. @Controller @RequestMappin...

I need to log a few attributes of the request like the request id and the locale, but when using parallelStream, it seems that the ThreadLocal of the MDC looses the information. Ive analyzed the ...

Material design for the web. How to set the position for a mdc.menu? I will move the mdc-menu from the left, top corner to the right corner. 70px from top and 25px from the right. Please take a l...

In our software we extensively use MDC to track things like session IDs and user names for web requests. This works fine while running in the original thread. However, there's a lot of things that ...

Is it possible some how to use MDC to name the log file at run time. I have a single web application which is being called by different names at the same time using tomcat docbase. So i need to h...

I have an application written with spring 5 and reactor. I put in the subscriber context some information such as the user id. Now I want to log this user id. I'm trying with MDC but if the request...

When executing async CompletableFuture, the parent threadcontext and moreover the org.slf4j.MDC context is lost. This is bad as I'm using some kind of "fish tagging" to track logs from one request...

We are using: Spring Boot Slf4J Logback ELK stack Now we want to use MDC to add the unique tracking number, which is provided in the POST request JSON, to every log statement for a given reque...

Logback MDC (Mapped Diagnostic Context) is leveraging threadLocal (As far as I know) so that it will be accessible on all the log statements executed by the same thread. My question is, will logb...

I'm trying to add a requestId to my web app's logs, as shown here. public class MDCFilter implements ContainerRequestFilter, ContainerResponseFilter { private static final String CLIENT_ID = "cl...

I'm trying to determine how thread-safe MDC is when using Cacheable ThreadPools or Spring's Async annotation. I have a method that calls several CompletableFuture<> and executes them using t...

I want to pass MDC context to threads of the ForkJoinPool as I need to print the requestId populated in the MDCContextMap in all the spawned threads logs for better debugging. I am using the follow...

How to add MDC variables in the json log generated by JsonLayout of log4j2. I've used KeyValuePair tag to add properties like host name into the log, but I didn't found any way to add MDC variables...