zrlw edited a comment on issue #9079:
URL: https://github.com/apache/dubbo/issues/9079#issuecomment-955664729


   现在ServiceConfigTest.testDelayExport第222行抛RejectedExecution:
   ```
   Error:  org.apache.dubbo.config.ServiceConfigTest.testDelayExport  Time 
elapsed: 0.351 s  <<< ERROR!
   java.util.concurrent.RejectedExecutionException: Task 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@33a910c5 
rejected from 
java.util.concurrent.ScheduledThreadPoolExecutor@2e7c932c[Terminated, pool size 
= 0, active threads = 0, queued tasks = 0, completed tasks = 0]
        at 
org.apache.dubbo.config.ServiceConfigTest.testDelayExport(ServiceConfigTest.java:222)
   ```
   github构建也经常遇到,比如:
   https://github.com/apache/dubbo/runs/4058917480?check_suite_focus=true
   https://github.com/apache/dubbo/runs/4058917494?check_suite_focus=true
   根源是ServiceConfig的doDelayExport()方法执行异常:
   ```
       protected void doDelayExport() {
           
getScopeModel().getDefaultExtension(ExecutorRepository.class).getServiceExportExecutor()
               .schedule(() -> {
                   try {
                       doExport();
                   } catch (Exception e) {
                       logger.error("Failed to export service config: " + 
interfaceName, e);
                   }
               }, getDelay(), TimeUnit.MILLISECONDS);
       }
   ```
   
可能是MultiInstanceTest.testAsyncExportAndReferServices导致的,MultiInstanceTest有线程泄露


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