Problem Note 45661: Load balanced SAS® OLAP Servers may abend and hang on shutdown
In a load balanced cluster of SAS® OLAP servers, periodic abends and hangs can occur during normal shut–down.
When a SAS OLAP Server is shutting down, various extensions used by the server are unloaded. These extensions include the load balancing extension. If the load balancing extenstion is unloaded while a call is currently being processed by it, this can cause the server to abend and enter a hung state.
Error messages related to this problem are visible in both the SAS OLAP server log and when calling the Traceback:
Traceback called........
Module Function(Source ) Offset Line
-------- ----------------- ------ ----
TKIOMPEB ??010982(PEBCLIE) 00009e 0 pebLBServerUpdate
TKIOMPEB ??010698(PEBCLIE) 0006b8 0 clientDestroy
TKIOMSAM ??712323(SAMCONN) 000348 0 samConnDestroy
TKIOMSAM ??712305(SAMCONN) 0002d6 0 samConnDecrement
TKIOMPEB ??010713(PEBCLIE) 00584c 0 clientDispatch
TKIOMSVC ??720195(TKIOMPD) 002a82 0 svcPuddleMain
TKEPDL ??079062(TKEPDLB) 000434 0 basicPuddleMain
SASTK UNKNOWN(UNKNOWN) 0b890c 0
UNKNOWN UNKNOWN(UNKNOWN) fddbf6 0
SAS OLAP Log Messages:
The load balancing processor could not send update to spawner (XXXXXXXX.XXXXXXXX_?xxx.xxx.xxx.xxx)
Processor has been stopped.
Client connection X for user sastrust@saspw closed.
Processor has been destroyed.
The load balancing processor has been stopped and must be reinitialized.
Operating System and Release Information
| SAS System | SAS Integration Technologies | z/OS | 9.2 TS2M3 | 9.3 TS1M0 |
*
For software releases that are not yet generally available, the Fixed
Release is the software release in which the problem is planned to be
fixed.
In a cluster of load balanced SAS® OLAP Servers, there can be periodic abends and hangs in the SAS OLAP Server during normal shut-down.
| Type: | Problem Note |
| Priority: | high |
| Date Modified: | 2012-02-17 11:15:42 |
| Date Created: | 2012-02-14 11:44:44 |
