9. Customize Services

Customize Services presents you with a set of tabs that let you manage configuration settings for HDP components. The wizard sets reasonable defaults for each of the options here, but you can use this set of tabs to tweak those settings. You are strongly encouraged to do so, as your requirements may be slightly different. Pay particular attention to the directories suggested by the installer.


In HDFS Services Configs General, make sure to enter an integer value, in bytes, that sets the HDFS maximum edit log size for checkpointing. A typical value is 500000000.

Hover your cursor over each of the properties to see a brief description of what it does. The number of tabs you see is based on the type of installation you have decided to do. A typical installation has at least ten groups of configuration properties and other related options, such as database settings for Hive/HCat and Oozie, admin name/password, and alert email for Nagios.

The install wizard sets reasonable defaults for all properties except for those related to databases in the Hive and the Oozie tabs, and two related properties in the Nagios tab. These four are marked in red and are the only ones you must set yourself. Click the name of the group in each tab to expand and collapse the display.

For more information about customizing specific services for a particular HDP Stack, see Customizing HDP Services.

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