Problem Note 68112: A SAS® object spawner might stop accepting connections after several days of running
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In a grid environment starting with the SAS® 9.4M6 (TS1M6) maintenance release, an object spawner can stop accepting new connections and then generate an access violation error after several days of running.
During the incident there might be a build-up of open ports from SAS clients because connections are not freed. If the problem is not discovered, the number of open ephemeral ports can grow into the thousands.
Restarting the object spawner clears the error, and the system returns to a functioning state. Any open ports that were not freed during the incident are released.
The object spawner log might contain a traceback display similar to the following examples:
/sashome/SASFoundation/9.4/sasexe/tkepdl.so(+0x54f2) [0x7f2dc89854f2]
/sashome/SASFoundation/9.4/sasexe/tkmk.so(bktExcept+0x62) [0x7f2dcfe12472]
/sashome/SASFoundation/9.4/sasexe/tkmk.so(bkt_signal_handler+0x144) [0x7f2dcfe12ac4]
/lib64/libpthread.so.0(+0xf630) [0x7f2dd1225630]
/sashome/SASFoundation/9.4/sasexe/tkiomsvc.so(+0xd949) [0x7f16eee8c949]
/sashome/SASFoundation/9.4/sasexe/tkmk.so(bktExcept+0x62) [0x7f16fb418472]
/sashome/SASFoundation/9.4/sasexe/tkmk.so(bkt_signal_handler+0x144) [0x7f16fb418ac4]
/lib64/libpthread.so.0(+0xf630) [0x7f16fc82b630]
This problem might occur between 5 and 8 days after the object spawner is first started.
A workaround is to restart the object spawner on a regular basis daily.
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 Object Spawner | z/OS | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 |
| Microsoft® Windows® for x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 8 Enterprise 32-bit | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 8 Enterprise x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 8 Pro 32-bit | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 8 Pro x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 8.1 Enterprise 32-bit | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 8.1 Enterprise x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 8.1 Pro 32-bit | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 8.1 Pro x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows 10 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2008 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2008 R2 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2008 for x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2012 Datacenter | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2012 R2 Datacenter | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2012 R2 Std | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2012 Std | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2016 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Microsoft Windows Server 2019 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Windows 7 Enterprise 32 bit | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Windows 7 Enterprise x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Windows 7 Home Premium 32 bit | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Windows 7 Home Premium x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Windows 7 Professional 32 bit | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Windows 7 Professional x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Windows 7 Ultimate 32 bit | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Windows 7 Ultimate x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| 64-bit Enabled AIX | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| 64-bit Enabled Solaris | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| HP-UX IPF | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Linux for x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
| Solaris for x64 | 9.4_M6 | 9.4_M8 | 9.4 TS1M6 | 9.4 TS1M8 | ||
A fix for this issue for Threaded Kernel IOM 9.4_M7 is available at:
https://tshf.sas.com/techsup/download/hotfix/HF2/J9S.html#68112A fix for this issue for Threaded Kernel IOM 9.4_M6 is available at:
https://tshf.sas.com/techsup/download/hotfix/HF2/E8G.html#68112| Type: | Problem Note |
| Priority: | high |
| Date Modified: | 2021-07-02 10:37:04 |
| Date Created: | 2021-07-02 08:19:59 |