Problem Note 58924: SAS® Federation Server intermittently consumes 100% CPU
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When you use SAS® Real-Time Decision Manager, you might notice 100% of CPU usage by your associated SAS Federation Server. This issue occurs when a DS2 process receives a tap_table or tap_array string that is larger than the 32-KB limit that is allowed for these objects. Truncation of these strings results in an infinite loop that consumes CPU indefinitely.
The workaround for this issue is to limit the length of tap_table and tap_array input to less than 32 KB.
Click the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Decision Services | Microsoft® Windows® for x64 | 5.6 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 |
| 64-bit Enabled AIX | 5.6 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| 64-bit Enabled Solaris | 5.6 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| HP-UX IPF | 5.6 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Linux for x64 | 5.6 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Solaris for x64 | 5.6 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| SAS System | SAS Real-Time Decision Manager | Microsoft® Windows® for x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 |
| Microsoft Windows 8 Enterprise 32-bit | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows 8 Enterprise x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows 8 Pro 32-bit | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows 8 Pro x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows 8.1 Enterprise 32-bit | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows 8.1 Enterprise x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows 8.1 Pro 32-bit | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows 8.1 Pro x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows Server 2003 Datacenter Edition | 6.1 | 9.3 TS1M2 | ||||
| Microsoft Windows Server 2003 Enterprise Edition | 6.1 | 9.3 TS1M2 | ||||
| Microsoft Windows Server 2003 Standard Edition | 6.1 | 9.3 TS1M2 | ||||
| Microsoft Windows Server 2003 for x64 | 6.1 | 9.3 TS1M2 | ||||
| Microsoft Windows Server 2008 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows Server 2008 R2 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows Server 2008 for x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows Server 2012 Datacenter | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows Server 2012 R2 Datacenter | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows Server 2012 R2 Std | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows Server 2012 Std | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Microsoft Windows XP Professional | 6.1 | 9.3 TS1M2 | ||||
| Windows 7 Enterprise 32 bit | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Windows 7 Enterprise x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Windows 7 Home Premium 32 bit | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Windows 7 Home Premium x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Windows 7 Professional 32 bit | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Windows 7 Professional x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Windows 7 Ultimate 32 bit | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Windows 7 Ultimate x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Windows Vista | 6.1 | 9.3 TS1M2 | ||||
| Windows Vista for x64 | 6.1 | 9.3 TS1M2 | ||||
| 64-bit Enabled AIX | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| 64-bit Enabled Solaris | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| HP-UX IPF | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Linux for x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
| Solaris for x64 | 6.1 | 6.4 | 9.3 TS1M2 | 9.4 TS1M2 | ||
A fix for this issue for SAS Decision Services 5.6 is available at:
https://tshf.sas.com/techsup/download/hotfix/HF2/J78.html#58924| Type: | Problem Note |
| Priority: | high |
| Date Modified: | 2016-09-06 10:11:27 |
| Date Created: | 2016-09-02 10:15:56 |