LSF Version 7.3 - Platform LSF Configuration Reference

Description
Enables automatic removal of dynamic hosts from the cluster and specifies the timeout value
(minimum 10 minutes). To improve performance in very large clusters, you shuold disable
this feature and remove unwanted hosts from the hostcache file manually.
Specifies the length of time a dynamic host is unavailable before the master host removes it
from the cluster. Each time LSF removes a dynamic host, mbatchd automatically reconfigures
itself.
Valid value
The timeout value must be greater than or equal to 10 minutes.
Example
LSF_DYNAMIC_HOST_TIMEOUT=60
A dynamic host is removed from the cluster when it is unavailable for 60 hours.
LSF_DYNAMIC_HOST_TIMEOUT=60m
A dynamic host is removed from the cluster when it is unavailable for 60 minutes.
EGO parameter
EGO_DYNAMIC_HOST_TIMEOUT
Default
Not defined. Unavailable hosts are never removed from the cluster.
LSF_DYNAMIC_HOST_WAIT_TIME
Syntax
LSF_DYNAMIC_HOST_WAIT_TIME=time_seconds
Description
Defines the length of time in seconds that a dynamic host waits before sending a request to
the master LIM to add the host to the cluster.
Note:
To enable dynamically added hosts, the following parameters
must be defined:
•
LSF_MASTER_LIST in lsf.conf
•
LSF_DYNAMIC_HOST_WAIT_TIME in lsf.conf, or
EGO_DYNAMIC_HOST_WAIT_TIME in ego.conf
•
LSF_HOST_ADDR_RANGE in
lsf.cluster.cluster_name
lsf.conf
450 Platform LSF Configuration Reference