zookeeper 大牛

[痴人了个说梦]

最近跑公司项目，用的zookeeper + dubbo 服务，新发布到一台服务器上之后。zookeeper 每天凌晨无故就报一个错误：

2017-07-19 03:21:46,183 [localhost-startStop-1-EventThread] ERROR o.a.c.f.i.CuratorFrameworkImpl [CuratorFrameworkImpl.java : 555] Watcher exception
java.lang.IllegalArgumentException: Path cannot be null
	at org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
	at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1572)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:214)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:203)
	at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.pathInForeground(GetChildrenBuilderImpl.java:199)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:191)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:38)
	at com.alibaba.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient$CuratorWatcherImpl.process(CuratorZookeeperClient.java:118)
	at org.apache.curator.framework.imps.NamespaceWatcher.process(NamespaceWatcher.java:67)
	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
2017-07-19 03:21:46,189 [localhost-startStop-1-EventThread] ERROR o.a.c.f.i.CuratorFrameworkImpl [CuratorFrameworkImpl.java : 555] Watcher exception
java.lang.IllegalArgumentException: Path cannot be null
	at org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
	at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1572)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:214)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:203)
	at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.pathInForeground(GetChildrenBuilderImpl.java:199)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:191)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:38)
	at com.alibaba.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient$CuratorWatcherImpl.process(CuratorZookeeperClient.java:118)
	at org.apache.curator.framework.imps.NamespaceWatcher.process(NamespaceWatcher.java:67)
	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
2017-07-19 03:21:46,190 [localhost-startStop-1-EventThread] ERROR o.a.c.f.i.CuratorFrameworkImpl [CuratorFrameworkImpl.java : 555] Watcher exception
java.lang.IllegalArgumentException: Path cannot be null
	at org.apache.zookeeper.common.PathUtils.validatePath(PathUtils.java:45)
	at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1572)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:214)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl$3.call(GetChildrenBuilderImpl.java:203)
	at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.pathInForeground(GetChildrenBuilderImpl.java:199)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:191)
	at org.apache.curator.framework.imps.GetChildrenBuilderImpl.forPath(GetChildrenBuilderImpl.java:38)
	at com.alibaba.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient$CuratorWatcherImpl.process(CuratorZookeeperClient.java:118)
	at org.apache.curator.framework.imps.NamespaceWatcher.process(NamespaceWatcher.java:67)
	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522)
	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)

底下一直是这个错误。

每天都会报一次。单纯重启服务不管用，必须要清掉zookeeper 服务器的dubbo节点然后再重启服务才可以。
请大牛指教。郁闷好几天了。。。

[痴人了个说梦]

。。。。。。。。。。。

[guoguotaotao]

解决了吗？我也报这个

[q1984201234]

楼主解决了吗，我也遇到这个了

[seedingly]

官方对此场景的issue回复：https://github.com/alibaba/dubbo/issues/870 官方对此场景的修复记录：https://github.com/alibaba/dubbo/pull/928

[韩大大丶]

一直报这个错 会不会占用机器的内存 导致程序速度下降?