设置Mysql中Hive元数据支持中文显示

1、进入Mysql客户端，存储hive元数据的数据库下，
根据所需选择执行以下：

#修改字段注释字符集“
alter table COLUMNS_V2 modify column COMMENT varchar(256) character set utf8;
#修改表注释字符集“
alter table TABLE_PARAMS modify column PARAM_VALUE varchar(20000) character set utf8;
#修改分区参数，支持分区建用中文表示“
alter table PARTITION_PARAMS modify column PARAM_VALUE varchar(20000) character set utf8;

alter table PARTITION_KEYS modify column PKEY_COMMENT varchar(20000) character set utf8;
#修改索引名注释，支持中文表示“
alter table INDEX_PARAMS modify column PARAM_VALUE varchar(4000) character set utf8;
#修改视图，支持视图中文“
ALTER TABLE TBLS modify COLUMN VIEW_EXPANDED_TEXT mediumtext CHARACTER SET utf8;
ALTER TABLE TBLS modify COLUMN VIEW_ORIGINAL_TEXT mediumtext CHARACTER SET utf8;

2、修改hive-site.xml中Hive读取元数据的编码方式
多加：useUnicode=true&characterEncoding=UTF-8

<!-- 存储元数据mysql相关配置 -->
    <property>
        <name>javax.jdo.option.ConnectionURL</name>
        <value>jdbc:mysql://node1:3306/hive_metastore?createDatabaseIfNotExist=true&amp;useSSL=false&amp;useUnicode=true&amp;characterEncoding=UTF-8</value>
    </property>