ASYNCINDEX= Table Option

Specifies to create indexes in parallel when creating multiple indexes on an SPD Engine data set.

Valid in: CREATE INDEX Statement
Category: User Control of Index Usage
Data source: SPD Engine data set

Syntax

ASYNCINDEX= YES | NO

Arguments

YES

creates the indexes in parallel (asynchronously).

NO

creates one index at a time (synchronously). This is the default value.

Details

The SPD Engine can create multiple indexes for a data set at the same time. The SPD Engine spawns a single thread for each index created, and then processes the threads simultaneously. Although creating indexes in parallel is much faster than creating one index at a time, the default for this option is NO. Parallel creation requires additional utility work space and additional memory, which might not be available. If the index creation fails due to insufficient resources, you can do one of the following:
  • set the SAS system option to MEMSIZE=0
  • increase the size of the utility file space using the SPDEUTILLOC= system option
You increase the memory space that is used for index sorting using the SPDEINDEXSORTSIZE= system option. If you specify to create indexes in parallel, specify a large-enough space using the SPDEUTILLOC= system option.
Last updated: February 23, 2017