报错信息: 2017-12-04 13:23:42,042 INFO [main-SendThread(localhost:2181)] org.apache.zookeeper.ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error) 2017-12-04 13:23:42,043 WARN [main-SendThread(localhost:2181)]...
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 reconnect 将/etc/hosts文件里面的127.0.0.1 localhost那一行删掉重启
Hive操作超时错误:Session 0x0 for server null [HiveServer2-Background-Pool: Thread-69-SendThread(quickstart.cloudera:2181)]: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect java.net.ConnectException: Connection refusedat sun.nio.ch.SocketChannelImpl.chec...
ClientCnxn: Session 0x0 for server null, unexpected error 异常是由于zookeeper配置不成功引起的。 解决方法: 1. 确保zookeer集群安装成功。通过jps能够正确显示zookeeper管理进程QuorumPeerMain,具体安装步骤,请参考我的blogzookeeper集群安装。 2. HBase 中的zookeeper配置正确,zookeeper实例应该是奇数个. <property> ...
0 2906 java.sql.SQLException: connection holder is null; 2019-12-09 14:36 −### 一、问题来源分析 出现的错误 : ```java Cause: java.sql.SQLException: connection holder is null; uncategorized SQLException for SQL []; SQL state [null]; error ... ...
Hive操作超时错误:Session 0x0 for server null 1 Hive错误 [HiveServer2-Background-Pool: Thread-69-SendThread(quickstart.cloudera:2181)]: Session 0x0 forserver null, unexpected error, closing socket connection and attempting reconnectjava.net.ConnectException: Connection refusedat sun.nio.ch....
2017-02-13 09:01:55,886 [myid:] - WARN [main-SendThread(localhost:2181):ClientCnxn$SendThread@1257] - Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect java.net.ConnectException: Connection refused ...
SocketChannelImpl.java:717)at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1081 错误信息是：在节点上进zkCli.sh 端时连接不到报错 解决⽅案：把zookeeper中zoo.cfg 中配置的端⼝号都改为2181端⼝。
1、启动kafka的脚本程序报如下所示的错误: 1 [hadoop@slaver1 script_hadoop]$ kafka-start.sh 2 start kafkaServer... 3 [2018-05-22 09:29:08,783] INFO Verifying properties (kafka...
int status=Integer.parseInt(args[0]); if(status==1){ createTable(args[1],args[2]); }else if(status==2){ deleteTable(args[1]); } } /* * create a table and its family */ public static void createTable(String tablename ,String family) throws IOException{ ...