hive通过外部表读写elasticsearch数据,和读写hbase数据差不多,差别是需要下载elasticsearch-hadoop-hive-6.6.2.jar,然后使用其中的EsStorageHandler: Connect the massive data storage and deep processing power of Hadoop with the real-time search and analytics of Elasticsearch. The Elasticsea
背景:mysql编码是utf-8,mysql中建库建表中文显示都正常,但在hive窗口中建表时字段中文注释均乱码的问题. 问题:hive中建表后字段中文注释显示异常. 1. 定位 mysql 端问题 查看 mysql 字符集编码 mysql 中新建表中文注释显示正常 由此可以定位到并不是 mysql 服务端的编码问题. 2. 定位 hive 元数据问题 查看hive库表在mysql中的元数据信息,发现数据库的编码是utf8,而库中表的编码是latin1,所以才会导致hive中中文显示乱码. 至此
在finebi下用星环的连接驱动去写inceptor es表,发现插入能成功,但是返回一个报错: Caused by: java.sql.SQLException: Error to commit. at org.apache.hive.jdbc.HiveConnection.commit(HiveConnection.java:869) at com.fr.third.alibaba.druid.pool.DruidPooledConnection.commit(DruidPooledConn
查看被锁的表 select p.spid,a.serial#, c.object_name,b.session_id,b.oracle_username,b.os_user_name from v$process p,v$session a, v$locked_object b,all_objects c where p.addr=a.paddr and a.process=b.process and c.object_id=b.object_id ; 查看那个用户那个进程照成死锁,锁的级别se
查看是谁把表给锁了 select se1.inst_id as 被阻塞的会话节点, se2.inst_id as 罪魁祸首节点, se1.sid as 被阻塞的会话ID, ob.object_name as 哪个表, se1.serial# as 被阻塞的会话序列号, se2.sid as 罪魁祸首会话ID, se2.serial# as 罪魁祸首会话序列号# , se1.username as 被阻塞的用户, se2.username as 罪魁祸首名字, se1.blocking_insta
--以下几个为相关表SELECT * FROM v$lock;SELECT * FROM v$sqlarea;SELECT * FROM v$session;SELECT * FROM v$process ;SELECT * FROM v$locked_object;SELECT * FROM all_objects;SELECT * FROM v$session_wait; --查看被锁的表 select b.owner,b.object_name,a.session_id,a.locked_