【文章推荐】WARN Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (org.apache.zookeeper.ClientCnxn) java.net.ConnectException: Connection refused

原文：WARN Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (org.apache.zookeeper.ClientCnxn) java.net.ConnectException: Connection refused

启动kafka的脚本程序报如下所示的错误：根据错误分析，说zookeeper的问题，之前我没有启动zookeeper集群，所以先启动zookeeper集群，然后启动kafka解决问题 ...

2018-05-22 09:32 0 1998 推荐指数：

Linux下启动tomcat报错，WARN org.apache.zookeeper.ClientCnxn - Session 0x0 for server null, unexpected error, closing socket connection and attempting

　　tomcat启动完了之后，一直不停的打印这种错误信息，看表面上，应该是zk节点下的数据是空的，连接不上服务，所以一直在尝试连接，然后一直又连不上；完整的错误信息：　　原因：又 ...

WARN Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (org.apache.zookeeper.ClientCnxn)

[2017-05-19 13:32:14,933] INFO Waiting for keeper state SyncConnected (org.I0Itec.zkclient.ZkClient)[2017-05-19 13:32:15,028] INFO Opening socket ...

解决Zookeeper启动失败，出现WARN org.apache.zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting

将/etc/hosts文件里面的127.0.0.1 localhost那一行删掉重启 ...

hadoop mapreduce 写入hbase报错 Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect

zookeeper 的master。最开始的时候，配置是这样注入的：然后我觉得代 ...

zookeeper报Unable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting

现象服务器连不上，kafka报connection refused 测试发现kafka某台node(xx)的问题，登录上去也各种错误，zkServer.sh restart可以完成，但status报连不上。报错比较迷惑人，打开java log看到其他错误 ...

curator-framework 使用采坑记之org.apache.zookeeper.ClientCnxn - Opening socket connection to server..........Will not attempt to authenticate using SASL

一、curator-framework 简介 curator-framework 是对zookeeper做的分二次分布式封装处理，目前代码也是apache 开源社区维护，如下所示。 github地址：https://github.com/apache/curator ...

zookeeper报错java.net.ConnectException: Connection refused: no further information

zookeeper报错java.net.ConnectException: Connection refused: no further information 这是在linux 启动 https://blog.csdn.net/laychityun ...

java.net.ConnectException: Connection refused: connect

1. 原因分析：端口（51019，51022）被占用。解决办法：查看被占用端口对应的PID，输入命令：netstat -aon|findstr "51019"，回车，记下最后一位数字，即PID,这 ...

原文：WARN Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect (org.apache.zookeeper.ClientCnxn) java.net.ConnectException: Connection refused

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