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- Click the Admin tab.
- Click the Hadoop Cluster tab at the left side. The current settings are shown.
- Click Edit to make changes.
- Select Hadoop Cluster for the mode.
Specify the name node and add a private folder path or use impersonation if applicable.
Whitespaces aren't supported for use in file/folder paths. Avoid Avoid setting up Datameer storage directories (storage root path, temp paths, execution framework specific staging directories, etc.) with a whitespace in the path.Note Impersonation notes:
- There is one-to-one mapping between the Datameer user and the OS user.
- The OS user who is launching the Datameer process must be a sudoer.
- The temp folder for the Datameer installation local file system as well as in the Hadoop cluster (for Datameer) should have read/write access.<Datameer_Installation_Folder>/tmp(Local FileSystem)<Datameer_Private_Folder>/temp(Hadoop Cluster and MapR)
Learn about Enabling Secure Impersonation with Datameer.
- Specify YARN settings.
Use the properties text boxes to add Hadoop and custom properties.
Enter a name and value to add a property, or delete a name and value pair to delete the property.Note Within these edit fields, backslash (
\) characters are interpreted by Datameer as an escape character rather than a plain text character. In order to produce the actual backslash character, you have to type two backslashes:Code Block language text example.property=example text, a backslash \\ and further textThe second backslash is needed as you are effectively editing a Java properties file in these edit fields.
- Logging options. Select the severity of messages to be logged. The logging customization field allows to record exactly what is needed.
- Click Save when you are finished making changes.
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