一、hive創(chuàng)建表失敗，報(bào)錯(cuò)：

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CREATE TABLE pokes (foo INT, bar STRING);
FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask. MetaException(message:javax.jdo.JDODataStoreException: An exception was thrown while adding/validating class(es) : Specified key was too long; max key length is 767 bytes
com.MySQL.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Specified key was too long; max key length is 767 bytes

解決方法：
mysql> SET @@global.innodb_large_prefix = 1;

mysql> ALTER DATABASE hivedb character set latin1;

二、drop表報(bào)錯(cuò)卡主，日志看不到信息，

解決方法：

方法一：最后找到問題是mysql5.6.30，換了一個(gè)mysql5.1數(shù)據(jù)庫版本，解決問題

方法二：針對(duì)mysql5.6.30的bug，需要手動(dòng)初始化hive metastore，否則用戶在drop table時(shí)候會(huì)卡主。在dmp-gateway數(shù)據(jù)庫（配置文件中指定的mysql）

[root@DMP-GATEWAY ~]# cd /opt/amos/hive/bin/

[root@DMP-GATEWAY bin]# ./schematool -dbType mysql –initSchema

結(jié)果：

Starting metastore schema initialization to 1.2.0

Initialization script hive-schema-1.2.0.mysql.sql

Initialization script completed

查看數(shù)據(jù)庫：

[root@DMP-GATEWAY ~]# mysql -uroot –p

mysql> show databases;

--------------------

Database

--------------------

information_schema

exp

hive

hivedb 可以看到hivedb數(shù)據(jù)庫被創(chuàng)建

三、在mestatore初始化后，會(huì)自動(dòng)創(chuàng)建hivedb數(shù)據(jù)庫，清空所有表，或者

drop database hivedb

create database hivedb

source hive-txn-schema-0.14.0.mysql.sql

source hive-schema-1.2.0.mysql.sql

git地址：

https://github.com/apache/hive/tree/release-1.2.1/metastore/scripts/upgrade/mysql

四、報(bào)錯(cuò)

no library native-lzo

需要 yum install -y lzo