Problem Note 45342: Performance degradation can occur in a SAS® environment that uses load-balanced SAS® Stored Process Servers
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In a SAS® environment that makes use of load-balanced SAS® Stored Process Servers, you might notice below-average performance when you run SAS® Stored Processes. The degradation is evident especially in performance testing situations or when you process heavy loads.
The performance issue is caused by an error in the communication between the SAS Stored Process Server and the load-balancing component. The error causes the cost value for a host to be artificially inflated, which makes the host and all servers on that host unable to receive any work.
When this issue occurs, it can be difficult to diagnose the cause of the degraded performance because there is no error reported to the SAS Object Spawner log.
Click the Hot Fix tab in this note to access the hot fix for this issue.
Note: SAS® Integration Technologies customers who use SAS Stored Process Servers are required to apply the hot fix that is associated with this SAS note. The hot fix applies to both SAS® 9.3 (TS1M0) and SAS 9.3 (TS1M1).
Operating System and Release Information
| Product Family | Product | System | SAS Release | |
| Reported | Fixed* | |||
| SAS System | SAS Integration Technologies | Windows Vista | 9.3 TS1M0 | 9.3 TS1M2 |
| Windows 7 Ultimate x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Windows 7 Ultimate 32 bit | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Windows 7 Professional x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Windows 7 Professional 32 bit | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Windows Vista for x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| 64-bit Enabled AIX | 9.3 TS1M0 | 9.3 TS1M2 | ||
| 64-bit Enabled HP-UX | 9.3 TS1M0 | 9.3 TS1M2 | ||
| 64-bit Enabled Solaris | 9.3 TS1M0 | 9.3 TS1M2 | ||
| HP-UX IPF | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Linux | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Linux for x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Windows 7 Home Premium x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Windows 7 Home Premium 32 bit | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Windows 7 Enterprise x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Windows 7 Enterprise 32 bit | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Microsoft Windows XP Professional | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Microsoft Windows Server 2008 for x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Microsoft Windows Server 2008 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Microsoft Windows Server 2003 for x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Microsoft Windows Server 2003 Standard Edition | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Microsoft Windows Server 2003 Enterprise Edition | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Microsoft Windows Server 2003 Datacenter Edition | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Microsoft® Windows® for x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||
| z/OS | 9.3 TS1M0 | 9.3 TS1M2 | ||
| Solaris for x64 | 9.3 TS1M0 | 9.3 TS1M2 | ||