Hive Runner is a python script that pulls saved queries from Beeswax, runs the queries on Hive, and stores the results in Memcache.
Project description
Hive Runner is a python script that pulls saved queries from Beeswax, runs the queries on Hive, and stores the results in Memcache.
Using Hive Runner
Requirements
Python 2.7
Cloudera Beeswax - Beeswax must be using a MySQL Database for storage.
HiveServer - You must be running HiveServer version 1. Note that Cloudera’s Hadoop distribution only ships with version 2. You can easily install version 1 using Cloudera’s package repositories.
Memcached - You must have Memcached running somewhere.
Pip - Pip is used for Python package dependency.
Installation
Optionally, create a VirtualEnv: virtualenv environment-name
Optionally, use your VirtualEnv: source environment-name/bin/activate
Install Hive Runner via pip: pip install hiverunner
Usage
Hive Runner has flexible parameters. Available options can be seen by running hiverunner --help. The most important parameters to include when running Hive Runner from the command line are connection settings.
For example, to run all queries in Beeswax prepended with _hourly and caching the results in memcache:
hiverunner --hourly \ --mysql-host mysql01.example.com \ --mysql-database beeswax \ --mysql-user hue \ --mysql-password secret \ --hive-host hive01.example.com \ --memcache-host cache01.example.com
You can run the same command for all queries prepended with _weekly simply by changing the hourly parameter to weekly:
hiverunner --weekly \ --mysql-host mysql01.example.com \ --mysql-database beeswax \ --mysql-user hue \ --mysql-password secret \ --hive-host hive01.example.com \ --memcache-host cache01.example.com
If you find that you need to run custom named queries or only a single query the custom parameter makes this easy. Simply provide the name of the query that must be run.
For example, to run a single query regardless of the prepended time-focused demarcation:
hiverunner --custom _daily_custom_query \ --mysql-host mysql01.example.com \ --mysql-database beeswax \ --mysql-user hue \ --mysql-password secret \ --hive-host hive01.example.com \ --memcache-host cache01.example.com
This format makes it easy to schedule cron jobs.
Contributors
AJ Self <aj@bellycard.com>
Kevin Reedy <kevin@bellycard.com>
License
Apache License, Version 2.0
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