错误：com.sap.spark.vora.VoraConfigurationException：没有ZooKeeper的主机发现

Question

在运行命令vc.sql(testsql)，得到下面的错误

com.sap.spark.vora.VoraConfigurationException: No ZooKeeper hosts found

动物园管理员服务并全部三个节点上运行。

错误日志显示以下内容：

2016-09-14 15:14:32,418 - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197] - Accepted socket connection from /10.78.1.240:46458 2016-09-14 15:14:32,418 - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@357] - caught end of stream exception EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:228) at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:208) at java.lang.Thread.run(Thread.java:745) 2016-09-14 15:14:32,418 - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1007] - Closed socket connection for client /10.78.1.240:46458 (no session established for client) 2016-09-14 15:15:32,429 - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxnFactory@197] - Accepted socket connection from /10.78.1.240:46832 2016-09-14 15:15:32,429 - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@357] - caught end of stream exception EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:228) at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:208) at java.lang.Thread.run(Thread.java:745) 2016-09-14 15:15:32,429 - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@1007] - Closed socket connection for client /10.78.1.240:46832 (no session established for client)

Answer 1

只是尽量去Ambari并重新启动所有服务。

Answer 2

1. 检查动物园管理员服务器（S）为/运行

在群集管理器（例如Ambari）检查动物园管理员服务器（S）为/运行。同时检查动物园管理员的身份在命令行截至How to check if ZooKeeper is running or up from command prompt?

讨论例如：

$ <path>/zkServer.sh status 
$ echo stat | nc <zookeeper ip> 2181 

如果动物园管理员运行不正常，这个问题是动物园管理员，而不是与沃拉。在这种情况下，检查Zookeeper日志（通常是/ var/log/zookeeper）。

检查动物园管理员已知沃拉

如果动物园管理员运行时，检查在沃拉发现服务的UI如果（HTTP：8500/UI：//）列出了一个条目“zookeeper”。如果UI上未列出条目，请检查/ var/log/vora-discovery上的日志文件。