Question

我有一个问题，开始我的zkServer运行良好，但当我做

sudo bin/zkCli.sh

它显示了以下几个小时：

Connecting to localhost:2181
Welcome to ZooKeeper!
JLine support is enabled
[zk: localhost:2181(CONNECTING) 0]

如果我试过

ls /

它会显示（我不认为这是因为它没有连接的问题）：

Exception in thread "main" 
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1212)
at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:1241)
at org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:725)
at org.apache.zookeeper.ZooKeeperMain.processCmd(ZooKeeperMain.java:599)
at org.apache.zookeeper.ZooKeeperMain.run(ZooKeeperMain.java:362)
at org.apache.zookeeper.ZooKeeperMain.main(ZooKeeperMain.java:290)

Answer 1

我遇到了类似的问题。对我来说，动物园管理员还没有开始。修复之前，zkcli -server localhost:2181做完了，我得到了

Connecting to localhost:2181
Welcome to ZooKeeper!
JLine support is enabled
[zk: localhost:2181(CONNECTING) 0]

喜欢你。注意此处的“连接”。在此处执行ls /时出错，并退出zkcli：

Exception in thread "main" org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /
at org.apache.zookeeper.KeeperException.create(KeeperException.java:102)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:54)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1541)
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1569)
at org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:732)
at org.apache.zookeeper.ZooKeeperMain.processCmd(ZooKeeperMain.java:600)
at org.apache.zookeeper.ZooKeeperMain.executeLine(ZooKeeperMain.java:372)
at org.apache.zookeeper.ZooKeeperMain.run(ZooKeeperMain.java:332)
at org.apache.zookeeper.ZooKeeperMain.main(ZooKeeperMain.java:291)

解决方法是使用zkServer start启动Zookeeper 运行此命令，您将得到：

ZooKeeper JMX enabled by default
Using config: /usr/local/etc/zookeeper/zoo.cfg
Starting zookeeper ... STARTED

此后，当您执行zkcli -server localhost:2181时，您将获得：

Connecting to localhost:2181
Welcome to ZooKeeper!
JLine support is enabled

WATCHER::

WatchedEvent state:SyncConnected type:None path:null
[zk: localhost:2181(CONNECTED) 0] ls /
[cf, zookeeper]
[zk: localhost:2181(CONNECTED) 1]

在此处注意“已连接”。成功连接后，我创建了/ cf。
希望此解决方案有帮助。

对于Mac用户，您的zkServer位于usr/local/Cellar/zookeeper/3.4.13/bin

ZkCli州保持连接无连接

1 个答案: