錯誤：com.sap.spark.vora.VoraConfigurationException：沒有ZooKeeper的主機發現

Question

在運行命令vc.sql(testsql)，得到下面的錯誤

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

動物園管理員服務並全部三個節點上運行。

錯誤日誌顯示以下內容：

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

只是儘量去Ambari並重新啓動所有服務。

Answer 2

1. 檢查動物園管理員服務器（S）爲/運行

在羣集管理器（例如Ambari）檢查動物園管理員服務器（S）爲/運行。同時檢查動物園管理員的身份在命令行截至How to check if ZooKeeper is running or up from command prompt?

討論例如：

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

如果動物園管理員運行不正常，這個問題是動物園管理員，而不是與沃拉。在這種情況下，檢查Zookeeper日誌（通常是/ var/log/zookeeper）。

檢查動物園管理員已知沃拉

如果動物園管理員運行時，檢查在沃拉發現服務的UI如果（HTTP：8500/UI：//）列出了一個條目「zookeeper」。如果UI上未列出條目，請檢查/ var/log/vora-discovery上的日誌文件。