mfsmaster.cfg(5) MooseFS (NAME) mfsmaster.cfg - mfsmaster (DESCRIPTION) mfsmaster.cfg MooseFS . (SYNTAX) : OPTION = VALUE # . (STARTUP OPTIONS) . WORKING_USER . WORKING_GROUP - . SYSLOG_IDENT syslog mfsmaster . LOCK_MEMORY (swap) mfsmaster ()mlockall 0 . DISABLE_OOM_KILLER (OOM Killer) ( 1 ). NICE_LEVEL nice -19 : root nice . FILE_UMASK umask ( 0 ) 027 - . DATA_PATH () . (RUNTIME OPTIONS) (reload) . LICENCE_FILENAME ( Pro) mfslicence.bin. EXPORTS_FILENAME mfsexports.cfg. TOPOLOGY_FILENAME mfstopology.cfg. INSTANCE_NAME MooseFS () (GUI) ( ). BACK_LOGS ( 50 ). METADATA_SAVE_OFFSET : METADATA_SAVE_FREQ ( Pro) METADATA_DOWNLOAD_FREQ ( Pro) METADATA_CRCCHECK_FREQ ( - 0 ) X:Y X Y "L" () UTC (modulo) METADATA_SAVE_FREQ METADATA_DOWNLOAD_FREQ METADATA_CRCCHECK_FREQ NOTES . METADATA_SAVE_FREQ ( ) ( ) ( 1 ). METADATA_DOWNLOAD_FREQ ( Pro) ( ) ( 0 - ). METADATA_CRCCHECK_FREQ ( Pro) ( ) ( 24 ). METADATA_DOWNLOAD_LIMIT ( Pro) (0 50 - 50MiB/s = ~52.4MB/s). DEPUTY_ELECTION_TIME ( Pro) (master-elect) (master- deputy ) ( 0 - ). KEEP_LEADERSHIP ( Pro) 1 NOTES ( 0 - ). BACK_META_KEEP_PREVIOUS ( 1 ). CHANGELOG_PRESERVE_SECONDS ( 5000 5k ). CHANGELOG_PRESERVE_MB RAM ( 500 5k ) 5k CHANGELOG_PRESERVE_SECONDS CHANGELOG_PRESERVE_MB . CHANGELOG_SAVE_MODE changelog ( 0 ) 0 - ( ) 1 - ( - ) 2 - fsync ( ) MISSING_LOG_CAPACITY ( 100*MISSING_LOG_CAPACITY 100000 ). CONFIGURATION_TEST_PERIOD ( Pro) ( ) ( 24 168 0 ). SYSLOG_MIN_LEVEL : ERROR WARNING NOTICE INFO DEBUG ( INFO ). SYSLOG_ELEVATE_TO ( SYSLOG_MIN_LEVEL DEBUG SYSLOG_ELEVATE_TO NOTICE INFO DEBUG NOTICE syslog NOTICE ). (COMMAND CONNECTION OPTIONS) (reload) . MATOML_LISTEN_HOST IP ( Pro) (* ). MATOML_LISTEN_PORT ( Pro) . MATOML_TIMEOUT - ( 10 ). MATOML_FORCE_TIMEOUT - ( 0 - ). - (MASTER-LEADER CONNECTION OPTIONS) (reload) . MASTER_HOST ( Pro) MooseFS ( mfsmaster ). MASTER_RECONNECTION_DELAY ( Pro) ( 5 ). MATOMA_TIMEOUT ( Pro) - ( 10 ). BIND_HOST ( Pro) ( * ). (CHUNKSERVER CONNECTION OPTIONS) (reload) . MATOCS_LISTEN_HOST IP (* ). MATOCS_LISTEN_PORT . MATOCS_TIMEOUT - ( 10 ). MATOCS_FORCE_TIMEOUT - ( 0 - ). AUTH_CODE . - AUTH_CODE . () - . AUTH_CODE ( / ) / . . AUTH_CODE . REMAP_BITS, REMAP_SOURCE_IP_CLASS, REMAP_DESTINATION_IP_CLASS IP. IP REMAP_BITS IP REMAP_BITS REMAP_SOURCE_IP_CLASS . REMAP_BITS IP REMAP_BITS REMAP_DESTINATION_IP_CLASS . . MULTILAN_BITS, MULTILAN_CLASSES IP (LAN). IP MULTILAN_BITS IP IP MULTILAN_CLASSES ( ). IP MULTILAN_CLASSES . . MULTILAN_IPMAP_FILENAME mfsipmap.cfg. IP . (CHUNKSERVER WORKING OPTIONS) (reload) . REPLICATIONS_DELAY_INIT ( 60 ). REPLICATIONS_RESPECT_TOPOLOGY (undergoal) ( 0 ) 0 - 1 - 2 - (rack) ( ) CREATIONS_RESPECT_TOPOLOGY ( 0 ) 0 - N (N>0) - N N CHUNKS_UNIQUE_MODE IP ( 0 ) 0 - IP ( ) 1 - IP 2 - IP (rack id) ! 0 . (distinguish) . 0 . mfsscadmin(1) . CHUNKS_LOOP_MAX_CPS ( 100000 ). CHUNKS_LOOP_MIN_TIME ( 300 ). CHUNKS_SOFT_DEL_LIMIT (soft) ( 10 ). CHUNKS_HARD_DEL_LIMIT (hard) ( 25 ). CHUNKS_WRITE_REP_LIMIT ( 2,1,1,4,4 - NOTES ). CHUNKS_READ_REP_LIMIT ( 10,5,2,5,10 - NOTES ). CS_HEAVY_LOAD_THRESHOLD ( 150 - NOTES ). CS_HEAVY_LOAD_RATIO_THRESHOLD ( 3.0 - NOTES ). CS_HEAVY_LOAD_GRACE_PERIOD (grace) ( 900 - NOTES ). ACCEPTABLE_PERCENTAGE_DIFFERENCE ( 1 = 1% ). PRIORITY_QUEUES_LENGTH ( - - 1000000 ). CS_MAINTENANCE_MODE_TIMEOUT (maintenance mode) ( 0 - ' ') TIME . CS_TEMP_MAINTENANCE_MODE_TIMEOUT <<>> ( : 30m) TIME . CS_DAYS_TO_REMOVE_UNUSED () ( : 0 365 0 : 7). (CLIENTS CONNECTION OPTIONS) (reload) . MATOCL_LISTEN_HOST IP (mount) (* ). MATOCL_LISTEN_PORT (mount). MATOCL_TIMEOUT - ( 10 ). MATOCL_FORCE_TIMEOUT - ( 0 - ). RESTRICT_INCOMPATIBLE_CLIENT_VERSIONS MooseFS ( /erasure encoded) . 1 - . 0 . . (CLIENTS WORKING OPTIONS) (reload) . SESSION_SUSTAIN_TIME ( 1 ) TIME . (FILE SYSTEM OPTIONS) (reload) . QUOTA_DEFAULT_GRACE_PERIOD (soft quota) ( 7 ) TIME . ATIME_MODE atime ( 2 : 'relatime' - NOTES ). KEEP_EMPTY_FILES_IN_TRASH (trash) unlink ( 0 - ). RESERVE_SPACE (superuser) ( 0 = - NOTES ). MAX_ALLOWED_HARD_LINKS (hardlinks) ( 32767 8 65000 ). INODE_REUSE_DELAY (inodes) . 1 : mfsattrcacheto mfsxattrcacheto mfsentrycacheto mfsdirentrycacheto mfsnegentrycacheto mfssymlinkcacheto. ( 1d 300 3000000 ) TIME . DEFAULT_EC_DATA_PARTS EC (@n @8+n @4+n 8 4 8 ). (NOTES) (TIME) ( ) : : #.#T T : s () m () h () d () w () . : #w#d#h#m#s ( #d#m #m#d ) : s m 0 59 h 0 23 d 0 6 w ( #d#h#m d ). : 1.5h 1h30m 90m 5400s 5400 . 2.5d 2d12h 60h 1d36h (h 0 23 ). 1.03m 62s (61.8 62 ). (GENERAL NOTES) . ( ) : CHUNKS_LOOP_MIN_TIME CHUNKS_LOOP_MAX_CPS. . CHUNKS_LOOP_MIN_TIME CHUNKS_LOOP_MAX_CPS . : CHUNKS_LOOP_MIN_TIME 300 CHUNKS_LOOP_MAX_CPS 100000 1000000 ( ) . 10 = 1000000/100000 300 300 . 1000000000 ( ) 10000 . <<>> (soft) <<>> (hard) . . : o ( ) o ( ) o o ( ) o / (/) ( 1st >= 2nd >= 3rd <= 4th ). . ( ). ( ). CS_HEAVY_LOAD_THRESHOLD CS_HEAVY_LOAD_RATIO_THRESHOLD (grace) . CS_HEAVY_LOAD_GRACE_PERIOD . ATIME_MODE ( 0 ): o 0 = atime . o 1 = atime ( atime ). o 2 = atime ctime mtime ctime mtime atime 24 . ( "relatime" ). o 3 = . atime . o 4 = atime ( "noatime"). RESERVE_SPACE . . o # #B = . - SI IEC ( k K M Mi G Gi ). o #% #.#% = MooseFS. o #U #.#U = "U" U . o #C #.#C = "C" C . ( ) IP MFS / (I/O) . REMAP_BITS REMAP_SOURCE_IP_CLASS REMAP_DESTINATION_IP_CLASS . IP / IP () IP () . IP IP . . LAN VLAN IP . MULTILAN_BITS MULTILAN_CLASSES . LAN IP MULTILAN_BITS IP . IP ( IP ). IP MULTILAN_CLASSES ( ) IP . DNS : LAN DNS IP IP . mfsmount(8) mfsbdev(8) . . (LAN) . : REMAP_BITS = 24 REMAP_SOURCE_IP_CLASS = 10.0.0.0 REMAP_DESTINATION_IP_CLASS = 10.0.1.0 MULTILAN_BITS = 24 MULTILAN_CLASSES = 192.168.1.0, 192.168.2.0, 192.168.3.0, 10.0.1.0 LAN ( IP 192.168.1.17 IP 192.168.1 IP 192.168.2.13 IP 192.168.2 ) 10.0.0 ( ) 10.0.1 . LAN IP REMAP_DESTINATION_IP_CLASS . DNS IP 1 IP 192.168.1.17 192.168.1.1 IP 192.168.2.13 192.168.2.1 . LAN IP 10.0.0.1 . . : METADATA_SAVE_OFFSET METADATA_SAVE_FREQ ( Pro) METADATA_DOWNLOAD_FREQ ( Pro) METADATA_CRCCHECK_FREQ. METADATA_SAVE_FREQ . METADATA_SAVE_FREQ . METADATA_SAVE_OFFSET . METADATA_SAVE_OFFSET . : METADATA_SAVE_FREQ = 2 METADATA_SAVE_OFFSET = 15 00:15 02:15 04:15 22:15 . (modulo) : METADATA_SAVE_FREQ = 2 METADATA_SAVE_OFFSET = 1:15 : METADATA_SAVE_FREQ = 2 METADATA_SAVE_OFFSET = 5:15 01:15 03:15 05:15 . UTC "L" . CET ( UTC-1) : METADATA_SAVE_FREQ = 2 METADATA_SAVE_OFFSET = 1:15 01:15 03:15 UTC 00:15 02:15 (CET) . 01:15 ( 2 ) : METADATA_SAVE_FREQ = 2 METADATA_SAVE_OFFSET = 1:15L ( Pro) METADATA_CRCCHECK_FREQ . : METADATA_CRCCHECK_FREQ = 12 METADATA_SAVE_FREQ = 2 METADATA_SAVE_OFFSET = 1:15 01:15 13:15 ( ) 01:15 03:15 05:15 . METADATA_DOWNLOAD_FREQ METADATA_SAVE_OFFSET METADATA_CRCCHECK_FREQ . UTC . PST ( UTC-8) : METADATA_CRCCHECK_FREQ = 12 METADATA_SAVE_FREQ = 2 METADATA_SAVE_OFFSET = 1:15 01:15 13:15 UTC 17:15 05:15 ( : : ) (PST) . 01:15 13:15 ( : : ) : METADATA_CRCCHECK_FREQ = 12 METADATA_SAVE_FREQ = 2 METADATA_SAVE_OFFSET = 1:15L : METADATA_SAVE_OFFSET = 0L . KEEP_LEADERSHIP Pro (LEADER) . ( - ) ( ) ( FOLLOWER) LEADER . mfssupervisor LEADER ( : ) . KEEP_LEADERSHIP 1 . (COPYRIGHT) (C) 2026 Jakub Kruszona-Zawadzki, Saglabs SA MooseFS . MooseFS (GNU GPL) ( ) . MooseFS . . : (SEE ALSO) mfsmaster(8), mfsexports.cfg(5), mfstopology.cfg(5), mfsipmap.cfg(5) MooseFS 4.59.2-1 2026 mfsmaster.cfg(5)