java - slf4j.MDC + thread pool = memory leak?

Question

The service receives tasks from outside and runs them in a separate thread. A thread pool is used. For logging, slf4j.MDC is used with the task id saved.

MDC.put ("Session", String.valueOf (task.getId ()));

I understand correctly that when using a thread pool, there is no need to remove data from the MDC. That is, you can add data without deleting it, and there will be no memory leak? Those. after using it in a stream, can we not delete data like this?

MDC.remove ("Session");

Because a thread pool is used, with each new thread, the old data will simply be overwritten, and there will be no memory overflow. Ie it is not necessary. Do I get it right?

question from:https://stackoverflow.com/questions/65914576/slf4j-mdc-thread-pool-memory-leak

Answer 1

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