To enable users to publish
scoring model files to a Hadoop Distributed File System (HDFS) from
SAS Model Manager using the SAS Embedded Process, follow these steps:
-
Create an HDFS directory
where the model files can be stored.
Note: The path to this directory
is used when a user publishes a model from the SAS Model Manager user
interface to Hadoop.
-
Grant users Write access
permission to the HDFS directory.
For more information,
see Hadoop Permissions.
-
Add this line of code
to the autoexec_usermods.sas file that is located in the Windows directory
\SAS-configuration-directory\Lev#\SASApp\WorkspaceServer\:
%let HADOOP_Auth = Kerberos or blank;
UNIX Specifics: The
location of the autoexec_usermods.sas file for UNIX is /SAS-confirguration-directory/Lev#/SASApp/WorkspaceServer/.
If your Hadoop server
is configured with Kerberos, set the HADOOP_Auth variable to Kerberos.
Otherwise, leave it blank.
-
(Optional) If you want
users to be able to copy the publish code and execute it using Base
SAS, then this line of code must be added to the sasv9.cfg file that
is located in the Windows directory
\SASHome\SASFoundation\9.4\:
-AUTOEXEC ‘\SAS-confirguration-directory\Lev#\SASApp\WorkspaceServer\
autoexec_usermods.sas'
UNIX Specifics: The
location of the sasv9.cfg file for UNIX is /SASHome/SASFoundation/9.4/.
-
(Optional) If your Hadoop
distribution is using Kerberos authentication, each user must have
a valid Kerberos ticket to access SAS Model Manager. However, users
that are authenticated by Kerberos cannot write the publish results
files to the SAS Content Server when publishing a model because they
have not supplied a password to SAS Model Manager. Therefore, additional
post-installation configuration steps are needed so that users can
publish models to a Hadoop Distributed File System (HDFS) from SAS
Model Manager. For more information, see
SAS Model Manager: Administrator's Guide.