bionic (5) mfstopology.cfg.5.gz

Provided by: lizardfs-master_3.12.0+dfsg-1_amd64 bug

NAME

       mfstopology.cfg - LizardFS network topology definitions

DESCRIPTION

       The file mfstopology.cfg contains assignments of IP addresses into network locations (usually switch
       numbers). This file is optional. If your network has one switch or decreasing traffic between switches is
       not necessary then leave this file empty.

SYNTAX

       Syntax is:

       ADDRESS SWITCH-NUMBER

       Lines starting with # character are ignored.

       ADDRESS can be specified in several forms:

       •   * all addresses

       •   n.n.n.n single IP address

       •   n.n.n.n/b IP class specified by network address and bits number

       •   n.n.n.n/m.m.m.m IP class specified by network address and mask

       •   f.f.f.f-t.t.t.t IP range specified by from-to addresses (inclusive)

       SWITCH-NUMBER can be specified as any positive 32-bit numer.

NOTES

       If one IP belongs to more than one definition then last definition is used.

       As for now distance between switches is constant. So distance between machines is calculated as: 0 when
       IP numbers are the same, 1 when IP numbers are different, but switch numbers are the same and 2 when
       switch numbers are different

       Distances are used only to sort chunkservers during read and write operations. New chunks are still
       created randomly. Also rebalance routines do not take distances into account.

       Copyright 2008-2009 Gemius SA, 2013-2015 Skytechnology sp. z o.o.

       LizardFS is free software: you can redistribute it and/or modify it under the terms of the GNU General
       Public License as published by the Free Software Foundation, version 3.

       LizardFS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
       implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
       License for more details.

       You should have received a copy of the GNU General Public License along with LizardFS. If not, see
       http://www.gnu.org/licenses/.

SEE ALSO

       mfsmaster(8), mfsmaster.cfg(5)

                                                   02/11/2018                                 MFSTOPOLOGY.CFG(5)