Logback thread id. setName("my-thread-" + System.

Logback thread id Forks. Does that mean there's only 1 thread to consume log events from the blocking queue? (while the log events could be produced by multiple threads, say 20-40) Thanks. 3. The thread ID is unique and remains unchanged during its lifetime. State: BLOCKED at ch. currentThread). In this post we will explore using Spring Boot's default logging framework, Logback. The third field is the level of the log request. You just tell the logging framework what to log and where, and it all works (usually :-) For logging thread-specific data, you may consider using a Diagnostic Context. Logback is faster and has a smaller footprint than all existing logging systems. Thread X of Executor E1 wraps the task and submits it to Executor E2. 1875/0. currentThread. Ive analyzed the solution of passing the MDC context between the threads when creating the parallelStream but it seems dirty and I also have a lot of usages of the Which thread is "the running thread" on a system where four or eight CPUs, are all actively running threads that belong to the same program? Unfortunately, a lot of OS API documentation uses the phrase "current thread" because it makes sense when you're reading the OS source code, but it does not make In Logback, I want to see the context for the debug log messages in a class. 0625=3) Designation Examples of 11:32:36,926 DEBUG [org. AsyncAppender and according to the documentation, this will reduce the logging overhead on the application. I started to reproduce this in order to provide a complete solution but the absence of LogMessage and LogErrorMessage made that a bit tricky. atInfo (). logback:logback-core:1. 24. xml, specifying log formats, file appenders, log levels, etc. This is what you referred to as: enhance logging messages with context information like the current thread and the class name. String. A quick and to the point guide of how to use Log4j2 and Logback with SLF4J, as well as how to bridge To: logback-***@qos. Hot Network Questions I have 35,000 km on my Marathon Mondials I suppose that each process run in different thread thus when start a thread put in MDC the id process // this method runs in different thread for each invocation. What usecases are better served by using a sync appender. 0 license Activity. The following is an example configuration. A SIFT appender to separate log messages according to the key routeId, to define when log files are rolled, and to define the format of log messages in the file. Your configuration looks wrong, you are referring the appender even before its created. properties). If you are not correlating logs and traces, you can remove the MDC placeholders (%X{dd. Logs in java do not add trace id by default, so to make this possible we can add the trace id we previously added in the thread context to the log. logging handler or the Logback appender. I came across Async Appenders which use blocking queue for logging messages in such a way that all the thread enqueue there messages in blocking queues and working thread of async appender is responsible for logging the message from queue to certain destination as decided by Support logback AsyncAppender(MDC also support), No additional configuration is required. For details: Logback AsyncAppender Unique ID Appenders¶. I suppose that each process run in different thread thus when start a thread put in MDC the id process // this method runs in different thread for each invocation. When running on App Engine flexible environment, a TraceLoggingEnhancer instance adds a thread-safe trace ID Logback is a logging framework for Java applications, created as a successor to the popular log4j project. LoggerContext The page you link to uses an array, indexed by thread ID. impl. Logback components, if appropriately configured, will automatically include this In Logback, the log level of a logger can be changed with setLevel() method. Share. 2-SNAPSHOT. This thread-based correlation of logs is a useful technique to java logback xml 打印线程信息 logback输出线程id，Logback添加请求追踪ID前言LogbackMDC简介MDC的功能和ThreadLocal一致配置logback. Log. You can limit the number of characters logback would log You signed in with another tab or window. These threads are used for all other work logback needs to do in the background - time-based rollovers, socket appenders, async SMTP appenders etc. Java Logback, a versatile logging framework, is essential for developers seeking efficient debugging and monitoring solutions. All these services manage their own thread pool. properties in the root of the classpath containing lots of properties, including git. Although these are frequently used for purposes other than diagnosing problems, they are still frequently referred to as the MDC and NDC in Log4j 2 since they are 本文将介绍 Skywalking 在 SpringBoot 项目中集成 Trace ID 以及配置 logback 实现日志异步上传到 Skywalking 的功能。 2 核心 Maven 依赖 . 0625 P – 0. The OTel Java agent injects several pieces of information about the current span into each logging event's MDC copy: trace_id - the current trace id (same as Span. In one of my classes, I am attempting to log a really long string (a string value of a very large object array that can have tens of thousands of elements). trace_id} %X{dd. I hope, you have already had some basic knowledge about the Logback. The following is a basic configuration file: If you prefer to use a different format for your correlation ID, you can use the logging. Keep in mind that I'm using Spring Boot 1. deployment] (MSC 背景在一次项目的性能调优中，发现出现竞争瓶颈，导致在资源未使用满的情况下，TPS已经无法提升。祭起JMC（JAVA MISSON CONTROL）飞行记录器大法后，发现线程集中等待在logback写日志的地方，如下图所示：由于项目组多线程写如同一个文件日志，导致存在IO竞争，一般解决这种问题有三 Sleuth 3. info(" TEST . – One novel feature of Logback is SiftingAppender (). If you wish to overwrite this, for instance because you are batching a lot of requests and want a unique trace for every transaction, all you have to do is to I'm using logback for logging and i found some problem with filtering stack trace. Indicates whether data from the Thread Context map will be included in the RFC 5424 Syslog record (defaults to true) loggerFields We have a system deployed in the field that has Java services that use the logback logging framework. ear:main 11:32:37,177 DEBUG [org. Use logback-classic. 2, should work in earlier version. How to inherit pattern from Spring Boot default console appender? When I check the doc of AsyncAppender in logback, I didn't find something like thread pool setting which support AsyncAppender. 5), but Usage: You define the logging configuration in logback-spring. I can use patterns like %t to print a thread name, but I want to print a stack trace. info writes to the message only, is there a way I can also get it to write clientId to clentId How to Add DataDog trace ID in Logs using Spring Boot + Logback. xml and logback-local. I introduced logback in my introductory post, Logback Introduction: An Enterprise Logging Framework. Logger)LoggerFactory. The logback-core module contains the core components of the framework, including the logging APIs and basic implementations of appenders, filters, and layouts. For details: Logback AsyncAppender This is a big web server that uses Logback for logging. Provide details and share your research! But avoid . This class is designed for use as Actually, Logback does not offer a direct way to modify logs but there is a workaround we can achieve our goal by using filter even though it looks like a bit hacky. A STDOUT appender to define the format of log messages on the console. xml修改pattern,在中间添加%X{TRACE_ID},表示输出日志时会从MDC(ThreadLocal)中获取当前线程的TRACE_ID属性因为TRACE_ID是我自定义的所以现在MDC中没有,所以需要在线程启动时,给他添加TRACE_ID< Support logback AsyncAppender(MDC also support), No additional configuration is required. Given that logging is a crucial part of any application for both debugging and audit purposes, choosing an adequate logging library is a foundational decision for any project. Following code causes deadlock when using the default LogcatAppender in logback-android. There are two parts to this: Push your unique tracking number into MDC e. Spring boot 3 Logback and Support logback AsyncAppender(MDC also support), No additional configuration is required. Hi Currently i am studying logback logging framework. Where I've started: id. Custom properties. For example, in application. Alternatively, you can use the Threads DSL and assign a thread pool to a route by using logback扩展，集成transmittable-thread-local支持跨线程池的mdc跟踪 Topics. name or logging. Thread and it returned Áèáëèîòåêà èãð Google Play Telegram Executor. This would basically be analogous to logging %T instead of/in addition to %t 我有一个Spring引导应用程序，我使用logback作为日志记录的框架。目前，我希望显示线程id，而不是线程名。我知道使用log4j2是可能的，如果您使用%tid。我是否可以使 logback分成三个模块：logback-core、logback- classic和logback-access。 logback -core是其它两个模块的基础模块； logback -classic是log4j的一个改良版本，它完整实现SLF4J 思路：在输出日志的时候，将每个线程的ID同时输出，当然前提是保证每个线程的ID是唯一的。 sl4j 提供的一个工具类 MDC，支持 logback和 log4j，作用就是扩展变量值到日志中并输出。通 I am trying to print the id of the thread for which the logging is being done in my logfile. xml and inserts the Thread IDs are not a unique identifier and can get reused very quickly, increasing the likelihood of confusion and hindering accurate tracing in complex systems. SLF4J/Logback followed with its own implementation of the MDC, The Thread Context Map is the equivalent of the MDC and the Thread Context Stack is the equivalent of the NDC. xml because test classes and test resources are usually not considered nor packaged with the application. I did it at code level by log. Personally, I suppose logging in the same thread is not critical for majority applications, but it depends strongly from your environment, perfomance requirements, e. into the MDC. pattern. sl4j A tool class MDC is provided, which supports logback and log4j, whose function is to expand the value of the variable to the log and output it. Within the logback-classic module E would be of type ILoggingEvent and within the logback-access module it would be of type AccessEvent. class); Inject trace IDs into your logs. I am trying to changes max history dynamically, for that when I started the service it will print normally after service start I added command line runner to create config/logback. This can be achieved by using the JsonLayout. Adding %X means all Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company When exiting the thread, call NDC. Now I have a class used in a web application like this: I would say there should be a way to configure my logback. Why do you submit this issue? [ Y] Question or discussion Bug Requirement Feature or performance improvement Question Issue where trace id is showing in stdout and in the log bu Get started with understanding multi-threaded applications with our Java Concurrency guide: >> Download the eBook Spring 5 added support for reactive programming with the Spring WebFlux module, which has been improved upon ever since. 2 I'm using logback to log to a rolling file in my Spring Boot service. Commented Jan 26, 2015 at 21:54. Logback. path property (for example, in your application. Example use case: Log4J or its successors like LogBack can handle logging by multiple threads safely and effectively. It is a newer and better implementation of log4j. The logs start to get jumbled for various threads. logback. 3, no longer necessary) In the sample application, let’s use NDC to add/remove contextual data at relevant places in the code: Therefore we created one-thread for each separate entity-id and then collect all the replies. user10373534 user10373534. 1. You can get the ident of the current running thread. setName("my-thread-" + System. But how do I code it in the jave code to pick up the clientId. Spring Sleuth, Log4j2 different trace id in different services. slf4j. Outputs the ID of the thread that generated the logging event. Quite flexibly as well, from simple web GUI CRUD applications to complex I've been thinking a bit on how to make ThreadLocal in Java 17 behave the same way as in older Java and I ended up with a subclass of ThreadLocal that uses a fallback map keyed on thread id and keeps track of thread deaths to clean up the fallback map (both to prevent assigning old values to a new thread, and to avoid leaking data) Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The class thread::id is a lightweight, trivially copyable class that serves as a unique identifier of std::thread and std::jthread (since C++20) objects. Jmix builds on this highly powerful and mature Boot stack, allowing devs to build and deliver full-stack web applications without having to code the frontend. A dev explains the importance of using correlation IDs while working with log files for microservice applications and provides the Java code to get started. t1_count); mT2Count = (TextView) java. Presumably, at the end of the QB#start() method, QB#waitUntilFinished() is supposed to wait for all the t It contains thread-local contextual information which is later copied to each logging event captured by a logging library. Although these are frequently used for purposes other than diagnosing problems, they are still frequently referred to as the MDC and NDC in Log4j 2 since they are Support logback AsyncAppender(MDC also support), No additional configuration is required. The unique id appender allows the logging event to carry a unique id. For this the standard approach is to add logs. getLogger( Note: Line 23-24: Invoking stop to shudown the Logback’s working thread. deployment] (MSC service thread 1-3) Adding dependency ModuleDependency [identifier=ch. The standard also defines hash<thread::id>, so you can use the unordered containers, too. util. If you want to write log files in addition to the console output, you need to set a logging. For example, you'll almost always want to include the thread ID in the logs so you can follow a single thread if needed. ExecutorServiceUtil#THREAD_FACTORY are now daemons, which fixes an application hang on shutdown when LoggerContext#stop() Fixed missing EVENT_ID column problem on PostgreSQL as reported in LBCORE-126 by Brian Edwards. xml . AppenderBase. {SOFA-SpanId}] replaces the placeholders in the pattern with the specific TraceId and SpanId in the current thread process when the corresponding appender is called. jsi-3. remove("id") In a web application, add and clearing the Spring项目中实现logback日志接口进程的唯一ID 高并发接口调用时，一个接口的日志会被分散打印，为了快速查找一个接口打印的日志，在日志输出时实现唯一的ID检索实现思路通过实现拦截器HandlerInterceptor接口使用UUID生成唯一编号threadId 在控制器controller方法 It is recommended to introduce Logback and Log4j2 instead of Log4j. Automatic injection of trace correlation is available for Log4j2, Log4j, or SLF4J and Logback. If you want to learn more about Sleuth and Logback, you can check out these resources: • Get Current Trace ID in Spring Cloud Sleuth: A tutorial on how to get the current trace ID and span ID using the Tracer object. SimpleLoggerFactory) Object of class [org. We assume that you already have a working Kamon setup before starting here. This article dives into the nuances of managing the Mapped Diagnostic Context (MDC) within a thread pool environment, a scenario common in Java applications. configurationFile system property. put("TRACE_ID", UUID. Log Messages. Logging as a Cross-Cutting Concern to Keep Your Code Clean (Using Filters and Aspects) By default, the git-commit-id-plugin creates a file named git. put("processName", idProcess); . xml Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company In this example output: 2023-12-18 12:34:56 is the timestamp. Here's an example of the layout In C# when debugging threads for example, you can see each thread's ID. This is a multi-threaded system and the initial web request thread can be split into several other threads, but they all need to know the initial job id. The ident could be reused for other threads, if the current thread ends. And regarding the application server reusing threads, That is possible. Configuration examples. xml file: This ensures that the ID is accessible throughout the thread’s execution and across asynchronous operations facilitated by Reactor. info(Thread. That <pattern> element belongs in your Logback configuration With Jetty 7. t. name is used. I've just checked the thread name with java. Of course, the premise is to ensure that the ID of each thread is unique. as. x artifacts at group id ch. xml修改pattern,在中间添加%X{TRACE_ID},表示输出日志时会从MDC(ThreadLocal)中获取当前线程的TRACE_ID属性因为TRACE_ID是我自定义的所以现在MDC中没有,所以需要在线程启动时,给他添加TRACE_ID< Update the logback. For example, you can use it within a pattern like this: <configuration>  I have 2 files: logback. . However, although MDC data is passed to thread children, this doesn't work when threads are In this tutorial, we will show you how to use Logback Mapped Diagnostic Context (MDC) and SiftingAppender to create a separate log file for each thread. At the present time, logback is divided into three modules, logback-core, logback-classic and logback-access. xml outside classpath so that logback will not automatically load anything. Logger log = (ch. To be clear what I'm looking for is to see trace IDs in logs message, the same way that adding spring-cloud-starter-sleuth to the classpath, automatically configure Slf4j/Logback to show trace IDs in log messages. qos This should reduce the time a logging thread must wait to enqueue its log event when the ring buffer is at or close to maximum capacity. 思路：在输出日志的时候，将每个线程的ID同时输出，当然前提是保证每个线程的ID是唯一的。sl4j 提供的一个工具类MDC，支持 logback和log4j，作用就是扩展变量值到日志中并输出。二、MVC拦截器模式输出线程ID 加入POM引用 <dependency> <gr So this is a supported feature that you should use if you find it useful. Thread. Indicates whether data from the Thread Context map will be included in the RFC 5424 Syslog record (defaults to true) loggerFields Also, LOGBack documentation mentions that child threads will not inherit parents diagnostic context (MDC Map) and therefore it should be manually moved. Reasons to switch to logback from log4j; Benchmarking synchronous and asynchronous logging; An introduction to logback-access for Jetty and Tomcat; Real-world inspired recipes; A Frequently Asked Questions list (FAQ) Logback's PatternLayout contains defaultConverterMap which maps conversion words (%n, %msg, %d etc) to implementations of ch. Improve this answer. Two, MVC interceptor mode output thread ID First, put logback. Quite flexibly as well, from simple web GUI CRUD applications to complex Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. For details: Logback AsyncAppender This ensures that the ID is accessible throughout the thread’s execution and across asynchronous operations facilitated by Reactor. (TextView) findViewById (R. The file log pattern logs the full thread name: [%t]. 2. In fact, both of these frameworks were created by the same developer. MDC. [%thread] %-5level %logger{35} - %msg %n </pattern> The "" are needed to make the , work as described in the documentation. Please answer these questions before submitting your issue. You may also want to employ a mechanism to associate business info (e. You can set an ExecutorServiceManager per Camel context via org. 4 the %thread property would be expanded to include the URL path of the request along with the thread id -- something like [qtp2105333421-78 - /requested/url] Since upgrading to 7. /cloud-alibaba-server-consumer/pom. Logs can be helpful in tracking how the execution went but tracking the execution becomes more difficult in multithreaded applications. Printing thread id in log file using log4j. 4: Popping the last pushed property from the thread context stack: 5: Clearing the thread context (for both stack and map!) All threads opened by ch. getSession() along with the thread id to confirm if in fact MDC is the issue or there is a threading problem in your application – James Murphy. I read about MDC and how it use ThreadLocal but can't understand how to use it in async because it uses ForkJoinPool. getTraceId()); Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Add logback. Trace ID logging is available on Jetty runtimes if you are using the java. This release does not support the old logback-access artifact at ch. xml or logback. 8 it appears that the request path is no longer included -- logs now contain only [qtp2105333421-78]. randomUUID(). Thus the lead equals the pitch. This feature is valuable for tracking in A root logger to set the overall log level, and to write all log messages to the SIFT and STDOUT appenders. xml I am trying to build war file based on logback-local. As you can see all stuff will be logged and compressed in the same thread as data logged. It appears by default logback gives Runtime. Apache-2. 4. S Tested with In this tutorial, we will explore the use of Mapped Diagnostic Context (MDC) to improve the application logging. This is thirdparty code that I don't want to modify, so I want to know if this is configurable at Logback level. 在当今的软件开发环境中，日志管理扮演着至关重要的角色，尤其是在微服务架构下，分布式日志的统一收集、分析和展示成为了开发者和运维人员必须面对的问题。 Inject trace IDs into your logs. For example, the following will provide a correlation ID for Logback in format previously used by Spring Cloud Sleuth: By default, Spring Boot logs only to the console and does not write log files. Also, it is suggested to use only one log implementation rather than multiple implementations. An example of Log4j2 ThreadContext. #575 Move servlet-api to test Logback encoders for handling Steno and other formats. /cloud-alibaba-server-provider/pom. However, it looks to me like you just want to log in JSON format, not just the message but also the metadata such as timestamp, priority etc. In Java 19+, call Thread#threadId. The logback-classic module works on top of logback-core, providing an implementation of the SLF4J API, as well as advanced features such as MDC (Mapped Diagnostic Context), automatic In C# when debugging threads for example, you can see each thread's ID. On the contrary, when the application runs, logback picks up the logback. xml were not present, then logback fallbacks to use logback. xml file after that reloading the log back file, in this case, its not printing proper console, and the same code working fine when restart the spring application. I want to print data in logging pattern (such as process-id, request-id, user request data for a particular API request, user response for the same, etc. When you crate an instance of Thread, a name is given implicit to the thread, which is the pattern: Thread-number Two years ago I made the decision to immerse myself fully in the world of software development and it has been a process in which I have discovered a world full of knowledge to explore. To address this, I have introduce MDC Now, the problem is , http request is getting new correlationId but internal thread has stuck with first correlationId We have a system deployed in the field that has Java services that use the logback logging framework. So you should give meaningful names to your threads. In Log4j 2 Layouts return a byte array. and in your logback change the pattern [%thread] %X{processName} %msg %n In this article, we learn how to log effectively with Spring Boot. To log a message in Logback, you need to follow two steps: General Use Case When any application fails in production then it is necessary is to track how the execution went. 3 I've added TurboFilter to the LoggerContext sniffing for all the logs that go through the loggers: loggerContext. The Logger class in logback-classic implements the SLF4J API natively, so we incur zero overhead when invoking Most of the methods in the Appender interface are setters and getters. Here is my filter. 0-8090-28 this not true anymore for Logback starting with version 1. For example: 3/4– 0. -5thread to print just the first 5 characters of the thread name, but just 5, not An alternative, more general solution would be allowing the definition of extra fields besides ShortPatternLayout and FullPatternLayout that can use Pattern Layouts in the same manner (static fields as currently implemented can only use Logback variable substitution, which as far as I can tell can't include something like the thread id). You can use Logback's Mapped Diagnotic Context to propagate a unique tracking number to every log message. 0. All parameters start with a % in their beginner. 30. The X An alternate to the atomic integer for uniquely identifying the thread would be to use the identity hash code: Thread. span_id}) from the log patterns included in the above configuration examples. g. We will also be looking at the Spring Boot starter for log4j2. For more information, see Correlated Logs Not Showing Up in the Trace ID Panel. The thread ID is a positive long number generated when this thread was created. Let’s say that you logged some id no of some user hundreds of times, it scattered through all over the application and now you have a new requirement that says you have to encrypt this id number. 154 stars. doAppend(Unknown Support logback AsyncAppender(MDC also support), No additional configuration is required. Reload to refresh your session. Watchers. In your log message, you'll want to include enough info to ensure the message can be actionable. Basically, the MDC is a logs thread name up to 15 characters: [%15. Logback is a modern, high-capable logging framework. ch Subject: [logback-user] Pattern - log thread id instead of thread name In the examples and basic usage we have a pattern like: <pattern>%d [%thread] %level %logger In order to quickly and accurately locate and solve the problem, we need to distinguish different session requests of each user, and we need to do link tracking from a pile of logs. And thus you shouldn't log in time critical threads. Leon This short Logback tutorial lists examples for configuring logback. Currently I want to display thread id instead of the thread name. getLogger(Foo. getSpanContext(). – I need to append correlation id to logs from every request I get. file. If both properties are set, logging. If APM is enabled for this application, you can correlate logs and traces by enabling trace ID injection. It can output logs to the console, files, or remote log aggregation systems. SLF4J作为一个日志抽象层，允许开发者使用统一的日志接口，而Log4j、Logback和Log4j2则是具体的日志实现框架。Log4j2在性能上优于Logback，推荐在新项目中使用。文章还详细说明了如何在Spring Boot项目中配置Log4j2和Logback，以及如何使用Lombok简化 I did see MDC before, But didn't think that the entire thread thread uses the same context. Typically, while starting to service a new client request, the developer will insert pertinent contextual information, such as the client id, client's IP address, request parameters etc. I want to send log events to Loggly as JSON objects with parameterized string messages. This can be added to the application. t tn thread threadName: Outputs the name of the thread 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. getId())); logFactory. I know it is possible using log4j2 if you use %tid. 38 I am using log4cxx my project and i can able to log current thread id using [%t] marker, how to log process id in it or log4j?. The logback manual. 1875 L UNF denotes a 3/4″ UNF thread with 3 starts. trace_id, ensure that your trace ID reserved attribute settings account for the attribute. Follow answered May 28, 2009 at 18:06. path is ignored and only logging. getLogger(MainActivity. 2 Hi I want to use a DBAppenderin my Spring Boot application. {tid}] [%thread] %-5level %logger{36} Trace id, segment id, and span id will attach to logs automatically. Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Add 本文将介绍 Skywalking 在 SpringBoot 项目中集成 Trace ID 以及配置 logback 实现日志异步上传到 Skywalking 的功能。 2 核心 Maven 依赖 . However it doesn't make use of the thread ID. Can I achieve the same using logback or should I implement a Custom Thread ID extractor? I'm extending PatternLayout class and creating a map which In this article I will describe how to do structured logging in Java with usual logging libraries like SLF4J et Logback. Although these are frequently used for purposes other than diagnosing problems, they are still frequently referred to as the MDC and NDC in Log4j 2 since they are I did see MDC before, But didn't think that the entire thread thread uses the same context. log, you'll see a single line that starts with FfwJtsNHYSw6O0Qbm7EAAA: The thread name. public void startProcess(String idProcess) { MDC. vfoq bjnrd xews mtmn hlwa hexmv luniq eao hebyp vovo