本文介紹在Mac上搭建Hive環境。
建議首先配置好Hadoop，搭建與配置可以參考我之前的博文Mac Hadoop的安裝與配置。
當然你也可以選擇使用Docker搭建環境，本文不作介紹。

安裝

對于MacOs，推薦使用HomeBrew安裝hive，一步到位。

$ brew install hive

創建元數據庫

Hive默認用derby作為元數據庫。這里我們用mysql來存儲元數據，下面作一些初始化

mysql> create database metastore; mysql> create user 'hive'@'localhost' identified by '123456'; mysql> grant select,insert,update,delete,alter,create,index,references on metastore.* to 'hive'@'localhost'; mysql> flush privileges;

創建并修改配置

進入Hive的安裝目錄,創建hive-site.xml文件。（下面命令中hive路徑替換為自己實際安裝的路徑即可）

$ cd /usr/local/Cellar/hive/2.1.1/libexec/conf $ cp hive-default.xml.template hive-site.xml

在配置文件中找到以下幾個property修改value

<property><name>javax.jdo.option.ConnectionURL</name><value>jdbc:mysql://localhost/metastore</value> </property><property><name>javax.jdo.option.ConnectionDriverName</name><value>com.mysql.jdbc.Driver</value> </property><property><name>javax.jdo.option.ConnectionUserName</name><value>hive(填上述mysql中創建的用戶名)</value> </property><property><name>javax.jdo.option.ConnectionPassword</name><value>123456(填上述mysql中創建的用戶密碼)</value> </property><property><name>hive.exec.local.scratchdir</name><value>/tmp/hive</value> </property><property><name>hive.querylog.location</name><value>/tmp/hive</value> </property><property><name>hive.downloaded.resources.dir</name><value>/tmp/hive</value> </property><property><name>hive.server2.logging.operation.log.location</name><value>/tmp/hive</value> </property>

拷貝mysql-connector到hive

給Hive的lib目錄下拷貝一個mysql-connector

$ curl -L 'http://www.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.42.tar.gz/from/http://mysql.he.net/' | tar xz $ cp mysql-connector-java-5.1.42/mysql-connector-java-5.1.42-bin.jar /usr/local/Cellar/hive/2.1.1/libexec/lib/

初始化庫

初始化一下metastore庫

$ schematool -initSchema -dbType mysql

成功之后我們可以看到hive用usr/local/Cellar/hive/2.1.1/libexec/scripts/metastore/upgrade/mysql/hive-schema-2.1.0.mysql.sql的初始化sql腳本在我們配置的元數據庫中初始化好了如下表：

mysql> show tables; +---------------------------+ | Tables_in_metastore | +---------------------------+ | AUX_TABLE | | BUCKETING_COLS | | CDS | | COLUMNS_V2 | | COMPACTION_QUEUE | | COMPLETED_COMPACTIONS | | COMPLETED_TXN_COMPONENTS | | DATABASE_PARAMS | | DBS | | DB_PRIVS | | DELEGATION_TOKENS | | FUNCS | | FUNC_RU | | GLOBAL_PRIVS | | HIVE_LOCKS | | IDXS | | INDEX_PARAMS | | KEY_CONSTRAINTS | | MASTER_KEYS | | NEXT_COMPACTION_QUEUE_ID | | NEXT_LOCK_ID | | NEXT_TXN_ID | | NOTIFICATION_LOG | | NOTIFICATION_SEQUENCE | | NUCLEUS_TABLES | | PARTITIONS | | PARTITION_EVENTS | | PARTITION_KEYS | | PARTITION_KEY_VALS | | PARTITION_PARAMS | | PART_COL_PRIVS | | PART_COL_STATS | | PART_PRIVS | | ROLES | | ROLE_MAP | | SDS | | SD_PARAMS | | SEQUENCE_TABLE | | SERDES | | SERDE_PARAMS | | SKEWED_COL_NAMES | | SKEWED_COL_VALUE_LOC_MAP | | SKEWED_STRING_LIST | | SKEWED_STRING_LIST_VALUES | | SKEWED_VALUES | | SORT_COLS | | TABLE_PARAMS | | TAB_COL_STATS | | TBLS | | TBL_COL_PRIVS | | TBL_PRIVS | | TXNS | | TXN_COMPONENTS | | TYPES | | TYPE_FIELDS | | VERSION | | WRITE_SET | +---------------------------+ 57 rows in set (0.00 sec)

啟動hive

接下來，啟動hive

$ hive

參考

《Hive編程指南》

轉載于:https://www.cnblogs.com/micrari/p/7067968.html

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