When the SAS Object Spawner is configured with the grid load-balancing algorithm. a segmentation violation might occur causing the object spawner to stop handling requests. This problem can happen when your environment is heavily loaded and has limited resources available. If that happens, the following errors are written to the SAS Object Spawner log:

ERROR       PROVIDER(Platform): Communication time out
ERROR       PROVIDER(Platform): No matching job found
                   
     
. . .gridplat segmentation violation dump. . . 
                  
ERROR       IOM call failed. Internal server exception: access violation.
ERROR       Failed to process peer request.

Currently, there is no workaround to avoid the segmentation violation. However, you should implement the following recommendations to prevent the communication time-out error:

• Ensure that the LSF master machine is not overloaded.
• Ensure that the network bandwidth between the machines is not overloaded.
• Set the LSB_QUERY_PORT parameter so that the master machine spawns threads instead of processes to handle requests. For details about the LSB_QUERY_PORT parameter, see the Platform LSF Configuration Reference Documentation for the Platform LSF version that you have configured.
• Ensure that the communication time-out parameters (LSB_API_CONNTIMEOUT, LSB_API_RECVTIMEOUT, LSF_API_CONNTIMEOUT, LSF_API_RECVTIMEOUT) are set high enough but do not overload the system. The default values are 10, 10, 5, and 20, respectively. For more details about these time-out parameters, see the Platform LSF Configuration Reference Documentation for the Platform LSF version that you have configured.
• Ensure that the number of simultaneous connection requests that are sent to the SAS Object Spawner can be handled by the system and the network resources in a grid environment.

Click the Hot Fix tab in this note to access the hot fix for this issue.

This hot fix only prevents the segmentation violation from occurring. In addition to applying the hot fix, you should implement the following recommendations listed previously in order to prevent the communication time-out error.

Operating System and Release Information

A fix for this issue for SAS Threaded Kernel Grid 9.32 is available at:

A fix for this issue for SAS Threaded Kernel Grid 9.3_M1 is available at:

A fix for this issue for Base SAS 9.21_M3 is available at: