wu-sheng commented on a change in pull request #5009:
URL: https://github.com/apache/skywalking/pull/5009#discussion_r448675317
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File path: docs/en/FAQ/Memory-leak-enhance-Worker-thread.md
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@@ -0,0 +1,32 @@
+### Problem
+When using a thread pool, `TraceSegment` data in a thread cannot be reported
and there are memory data that cannot be recycled (memory leaks)
+
+### Example
+``` java
+ ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
+ executor.setThreadFactory(r -> new Thread(RunnableWrapper.of(r)));
+```
+
+### Reason
+
+* Worker threads are enhanced, when using thread pool.
+* According to the SkyWalking Java Agent design, when you want to trace cross
thread, you need to enhance the task thread.
+
+### Resolve
+
+* When using `Thread Schedule Framework`
+Checked SkyWalking Thread Schedule Framework at [SkyWalking Java agent
supported list](../setup/service-agent/java-agent/Supported-list.md), such as
Spring FrameWork @Async, such as Spring @Async, which can implement tracing
without any modification.
Review comment:
```suggestion
Checked SkyWalking Thread Schedule Framework at [SkyWalking Java agent
supported list](../setup/service-agent/java-agent/Supported-list.md), such as
Spring FrameWork @Async, which can implement tracing without any modification.
```
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