[GitHub] [dubbo] kylixs commented on issue #8985: [3.0] RpcException/RuntimeException when Provider jvm exit

[GitBox <gi...@apache.org>]

kylixs commented on issue #8985:
URL: https://github.com/apache/dubbo/issues/8985#issuecomment-942943406


   Some work is done in https://github.com/apache/dubbo/pull/9033, pls check it.
   1. The application destroy processing is changed: https://github.com/apache/dubbo/pull/9033#discussion_r728613024
   2. prevent refresh metadata in application stopping.
   ```java
           if (registered) {
               // scheduled task for updating Metadata and ServiceInstance
               asyncMetadataFuture = executorRepository.getSharedScheduledExecutor().scheduleAtFixedRate(() -> {
   
                   // ignore refresh metadata on stopping
                   ApplicationDeployer deployer = applicationModel.getDeployer();
                   if (deployer != null && (deployer.isStopping() || deployer.isStopped())) {
                       return;
                   }
   
                   InMemoryWritableMetadataService localMetadataService = (InMemoryWritableMetadataService) WritableMetadataService.getDefaultExtension(applicationModel);
                   localMetadataService.blockUntilUpdated();
                   try {
                       ServiceInstanceMetadataUtils.refreshMetadataAndInstance(serviceInstance);
                   } catch (Exception e) {
                       logger.error("Refresh instance and metadata error", e);
                   } finally {
                       localMetadataService.releaseBlock();
                   }
               }, 0, ConfigurationUtils.get(applicationModel, METADATA_PUBLISH_DELAY_KEY, DEFAULT_METADATA_PUBLISH_DELAY), TimeUnit.MILLISECONDS);
           }
   
   ```


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