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Posted to notifications@dubbo.apache.org by "edwardlee03 (GitHub)" <gi...@apache.org> on 2019/01/16 18:21:25 UTC

[GitHub] [incubator-dubbo] edwardlee03 commented on issue #695: zookeeper bug 建议升级版本

> consumer 端报错
> 
> ```
> 03:29:47,208 ERROR ClientCnxn:422 - from localhost-startStop-1-SendThread(192.168.1.91:2181)
> java.lang.NoClassDefFoundError: org/apache/zookeeper/server/ZooTrace
> 	at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1196)
> Caused by: java.lang.ClassNotFoundException: org.apache.zookeeper.server.ZooTrace
> 	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
> 	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
> 	... 1 more
> ```
> https://issues.apache.org/jira/browse/ZOOKEEPER-2618
> 
> 3.4.10 版本修复了此 bug ，建议升级下版本。

从异常信息看，`ClassNotFoundException: org.apache.zookeeper.server.ZooTrace`若发生在应用启动时，应用应该是启动失败；若发生在应用关闭时，就像 @wuwen5  说的，是应用优雅停机问题。我们也遇到不少这个问题，都是发生在应用关闭时，升级到`dubbo-2.5.8`之后就很少遇到。


[ Full content available at: https://github.com/apache/incubator-dubbo/issues/695 ]
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