liuyifeng1992 commented on issue #1429: 升级版本之后，所使用得netty版本还是4.1.36.Final，该版本存在CVE漏洞 URL: https://github.com/apache/servicecomb-java-chassis/issues/1429#issuecomment-560970650 > 这个错误是watch变更失败，具体代码： > > ``` > try { > response = JsonUtils.readValue(bodyBuffer.getBytes(), > MicroserviceInstanceChangedEvent.class); > } catch (Exception e) { > LOGGER.error("watcher handle microservice {} response failed, {}", > selfMicroserviceId, > bodyBuffer.toString()); > return; > } > ``` > > 看日志是会打印响应内容的，也可以调试看下e是什么。是否有影响需要结合你的环境看下，是否依赖于watch功能， ServcieCenter使用pull模式也是可以保持实例一致的，没有watch不会影响功能，但可能影响到实例变更检查的时效性 。 debug调试后，bodyBuffer的内容如下 UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 0, cap: 0) 然后异常e的堆栈如下 com.fasterxml.jackson.databind.exc.MismatchedInputException: No content to map due to end-of-input at [Source: (byte[])""; line: 1, column: 0]
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