Sets the maximum number of open file connections between mbatchd and sbatchd. The system sets MAX_SBD_CONNS automatically during mbatchd startup.
MAX_SBD_CONNS=integer
MAX_SBD_CONNS and LSB_MAX_JOB_DISPATCH_PER_SESSION affect the number of file descriptors. To decrease the load on the master LIM you should not configure the master host as the first host for the LSF_SERVER_HOSTS parameter.
The default values for MAX_SBD_CONNS and LSB_MAX_JOB_DISPATCH_PER_SESSION are set during mbatchd startup. They are not changed dynamically. If hosts are added dynamically, mbatchd does not increase their values. Once all the hosts have been added, you must run badmin mbdrestart to set the correct values. If you know in advance that your cluster will dynamically grow or shrink, you should configure these parameters beforehand.
MAX_SBD_CONNS = numOfHosts + (2 * LSB_MAX_JOB_DISPATCH_PER_SESSION)+200. This formula does not provide the exact number of SBD connections because it also calculates the lost and found hosts. Therefore, the calculated number of connections might be a few more than this theoretical number.