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Impala Installation

2019-05-06 14:51:53 环境搭建 hadoop Views:68 Likes:0 Comments:0

## Config Metastore

Install the Hive metastore somewhere in your cluster, see hive installation.

As part of this process, you configure the Hive metastore to use an external database as a metastore. Impala uses this same database for its own table metadata. You can choose either a MySQL or PostgreSQL database as the metastore.

It is recommends setting up a Hive metastore service rather than connecting directly to the metastore database; this configuration is required when running Impala under CDH 4.1. Make sure the /etc/impala/conf/hive-site.xml file contains the following setting, substituting the appropriate hostname for metastore_server_host:

<property>
    <name>hive.metastore.uris</name>
    <value>thrift://metastore_server_host:9083</value>
    </property>
    <property>
    <name>hive.metastore.client.socket.timeout</name>
    <value>3600</value>
    <description>MetaStore Client socket timeout in seconds</description>
    </property>
    
## Install Impala

wget http://mirrors.cnnic.cn/apache/incubator/impala/2.7.0/apache-impala-incubating-2.7.0.tar.gz

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