PARALLELREAD= Table Option

Determines when SPD Server uses parallel processing to read data stored in HDFS.

Valid in:	SPD Server
Valid in:	DATA step and PROC step
Default:	NO

Syntax

Required Arguments

Details

Example

Syntax

PARALLELREAD=NO | YES

Required Arguments

NO

specifies that parallel processing occurs only if a Read operation includes WHERE processing. This is the default behavior.

YES

requests parallel processing for all Read operations for the specific table.

Details

The PARALLELREAD= table option setting overrides the SPDSHPRD= macro variable. For more information about the SPDSHPRD= macro variable, see SPDSHPRD= Macro Variable.

Example

libname class sasspds 'mydomain' server=myhost.5400 user="anonymous";

proc freq data=class.StudentID (parallelread=yes); 
   tables age; 
run;

Note: Because SPD Server must be enabled to operate in select Hadoop environments, you might want to determine whether a libref is in a Hadoop domain. For example, to determine whether the libref Class is in a Hadoop domain, submit the LIBNAME LIST statement libname class list;. If the queried libref is in a Hadoop domain, SPD Server returns HADOOP=YES.