LSF Version 7.3 - Platform LSF Configuration Reference

To enable dynamically added hosts after installation, you must
define LSF_HOST_ADDR_RANGE in lsf.cluster.cluster_name,
and LSF_DYNAMIC_HOST_WAIT_TIME in lsf.conf. If you
enable dynamic hosts during installation, you must define an IP
address range after installation to enable security.
If a value is defined, security for dynamically adding and removing hosts is enabled, and only
hosts with IP addresses within the specified range can be added to or removed from a cluster
dynamically.
Specify an IP address or range of addresses, using either a dotted quad notation (IPv4) or IP
Next Generation (IPv6) format. LSF supports both formats; you do not have to map IPv4
addresses to an IPv6 format. Multiple ranges can be defined, separated by spaces.
Note:
To use IPv6 addresses, you must define the parameter
LSF_ENABLE_SUPPORT_IPV6 in lsf.conf.
If there is an error in the configuration of LSF_HOST_ADDR_RANGE (for example, an
address range is not in the correct format), no host will be allowed to join the cluster
dynamically and an error message will be logged in the LIM log. Address ranges are validated
at startup, reconfiguration, or restart, so they must conform to the required format.
If a requesting host belongs to an IP address that falls in the specified range, the host will be
accepted to become a dynamic LSF host.
IP addresses are separated by spaces, and considered "OR" alternatives.
If you define the parameter LSF_HOST_ADDR_RANGE with:
•
No range specified, all IPv4 and IPv6 clients are allowed.
•
Only an IPv4 range specified, only IPv4 clients within the range are allowed.
•
Only an IPv6 range specified, only IPv6 clients within the range are allowed.
•
Both an IPv6 and IPv4 range specified, IPv6 and IPv4 clients within the ranges are allowed.
The asterisk (*) character indicates any value is allowed.
The dash (-) character indicates an explicit range of values. For example 1-4 indicates 1,2,3,4
are allowed.
Open ranges such as *-30, or 10-*, are allowed.
For IPv6 addresses, the double colon symbol (::) indicates multiple groups of 16-bits of zeros.
You can also use (::) to compress leading and trailing zeros in an address filter, as shown in
the following example:
LSF_HOST_ADDR_RANGE=1080::8:800:20fc:*
This definition allows hosts with addresses 1080:0:0:0:8:800:20fc:* (three leading zeros).
You cannot use the double colon (::) more than once within an IP address. You cannot use a
zero before or after (::). For example, 1080:0::8:800:20fc:* is not a valid address.
If a range is specified with fewer fields than an IP address such as 10.161, it is considered as
10.161.*.*.
This parameter is limited to 2048 characters.
lsf.cluster
376 Platform LSF Configuration Reference