Topic:
Peak operation on socket failed, Volume processing has terminated with error. 

Description:
Running Variance Cube and get error message:
Peak operation on socket failed, Volume processing has terminated with error.        

Solution:
There are 2 possibilities for this error:

1.) Check to see that in File > Survey that you have selected more than
    one line to do the variance cube processing on.

2.) Shared memory segments need to be increased on the workstation.

For networked Sun architecture, the default of 6 segments for shared memory 
needs to be changed to 25. 
To do this, do the following : 

A) Increase the number of shared memory segments. To do this you must change the 
kernal config file. 
   1. cd /sys/sun4m 
   2. cd conf 
   3. Edit the GENERIC file or the copied version (whichever is later). 

To increase the shared memory parameter SHMSIZE, add in the following line to 
the bottom of the file (unless it already exists then change it ) 

            options SHMSIZE= (NEW VALUE HERE) 
  
Please remember that the value for SHMSIZE is in kilobytes and that the default 
is set to 1024. If you wish to increase it to 2 megabytes, the value would be 
2048. 

To increase the shared memory parameter SHMMNI, add in the following line to the 
bottom of the file ( again change it if it exists). This should be set to 25. 

             options SHMMNI= 25 

    4. Reboot the machine 

Any and all changes to these parameters are based on the assumption that the 
above file contains the following entries uncommented: 

options IPCMESSAGE   #System V IPC message facility 
options IPCSEMAPHORE #System V IPC semaphore facility 
options IPCSHMEM     #System V IPC shared-memory facility 

B) After the above is accomplished, remove all HTP* files from your home 
directory. 

C) run  ipcs 
    (This will produce a list of memory ids that are allocated) 
  
   run ipcrm -m (memory id) -m (memory id) 
  
  
For example: 
  
IPC status from worf as of Tue Jun  6 17:28:22 1995 
T     ID     KEY        MODE       OWNER    GROUP 
Message Queues: 
Shared Memory: 
m    900 0x00000000 --rw-rw----      tdl      gqs 
m    101 0x00000000 --rw-rw----      tdl      gqs 
m    102 0x00000000 --rw-rw----      tdl      gqs 
m    103 0x00000000 --rw-rw----      tdl      gqs 
m    104 0x00000000 --rw-rw----      tdl      gqs 
m    105 0x00000000 --rw-rw----      tdl      gqs 
m    506 0x00000000 --rw-rw----      tdl      gqs 
m    507 0x00000000 --rw-rw----      tdl      gqs 
m    509 0x00000000 --rw-rw----      tdl      gqs 
Semaphores: 

Then run ipcrm -m 900 -m 101 -m 102 -m 103 -m 104 -m 105 -m 506 -m 507 -m 508 
-m 509 




Last Modified on: 07-APR-00