Administering Platform LSF - SAS

Tuning mbatchd on UNIX
The child mbatchd continues to listen to the port number specified by
LSB_QUERY_PORT and creates threads to service requests until the job status
changes, a new job is submitted, or until the time specified in
MBD_REFRESH_TIME in lsb.params has passed.
◆ If MBD_REFRESH_TIME is < 10 seconds, the child mbatchd exits at
MBD_REFRESH_TIME even if the job changes status or a new job is
submitted before MBD_REFRESH_TIME expires
◆ If MBD_REFRESH_TIME > 10 seconds, the child mbatchd exits at 10
seconds even if the job changes status or a new job is submitted before the
10 seconds
◆ If MBD_REFRESH_TIME > 10 seconds and no job changes status or a new
job is submitted, the child mbatchd exits at MBD_REFRESH_TIME
Setting a query-dedicated port for mbatchd
To enable a query-dedicated port for mbatchd and change the default mbatchd
behavior so that mbatchd forks a child mbatchd that can create threads,
specify a port number with the parameter LSB_QUERY_PORT in lsf.conf.
This configuration only works on UNIX platforms that support thread
programming.
1 Log on to the host as the primary LSF administrator.
2 Edit lsf.conf.
3 Add the LSB_QUERY_PORT parameter and specify a port number that will
be dedicated to receiving requests from hosts.
4 Save the lsf.conf file.
Where to go next If you want to change the default value for MBD_REFRESH_TIME (default: 5
seconds), proceed to “Specifying an expiry time for child mbatchds” on
page 492.
Otherwise, you have completed configuration. Reconfigure the cluster with the
badmin mbdrestart command.
Specifying an expiry time for child mbatchds
You define how often mbatchd forks a new child mbatchd with the parameter
MBD_REFRESH_TIME in lsb.params.
The default value for this parameter is 5 seconds. Valid values are 5 to 300
seconds.
1 Log on to the host as the primary LSF administrator.
2 Edit lsb.params.
3 Add the MBD_REFRESH_TIME parameter and specify a time interval in
seconds to fork a child mbatchd.
4 Save the lsb.params file.
5 Reconfigure the cluster:
% badmin reconfig
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Administering Platform LSF