楼主今天在使用zookeeper客户端上传文件的时候报了如下的错误:

Session 0x0 for server null, unexpected error, closing socket connection and    attempting reconnect

于是上网查找了相关资料解决了此问题，现在将解决方案分享给大家

 

报错信息如下：

2016-11-11 18:27:37,185 INFO  org.apache.zookeeper.ClientCnxn.logStartConnect:966 - Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)

2016-11-11 18:27:37,191 WARN  org.apache.zookeeper.ClientCnxn.run:1089 - Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect

java.net.ConnectException: Connection refused

at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:744)

at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350)

at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068)

排查问题 ：

$ ./zkServer.sh status

JMX enabled by default

Using config: /Users/zhangxiaolong/Documents/zhangxiaolong/program/zookeeper-3.4.5/bin/../conf/zoo.cfg

Error contacting service. It is probably not running.

bjjbgi-7-103:bin zhangxiaolong$ 

发现是zk没有启动导致。

重新启动zk即可

补充知识点:

  把solrhome中的配置文件上传到zookeeper集群。使用zookeeper的客户端上传。

  下面是zookeeper的客户端上传案例

  客户端命令位置：/root/solr-4.10.3/example/scripts/cloud-scripts

./zkcli.sh -zkhost 192.168.25.154:2181,192.168.25.154:2182,192.168.25.154:2183 -cmd upconfig -confdir /usr/local/solrcloud/solrhome1/collection1/conf -confname myconf

  其中 -confname myconf 是上传到zookeeper上后配置文件所在文件夹的名字(可以随便取)

 

资料转载于博客:http://blog.csdn.net/mrzhangxl/article/details/53131383