mfsmetalogger.cfg(5)
| mfsmetalogger.cfg(5) | This is part of MooseFS | mfsmetalogger.cfg(5) |
NAME
mfsmetalogger.cfg - configuration file for mfsmetalogger
DESCRIPTION
The file mfsmetalogger.cfg contains configuration of MooseFS metalogger process.
SYNTAX
Syntax is:
- OPTION = VALUE
Lines starting with # character are ignored as comments.
STARTUP OPTIONS
Changes in this section require process restart.
- WORKING_USER
- user to run daemon as
- WORKING_GROUP
- group to run daemon as (optional - if empty then default user group will be used)
- SYSLOG_IDENT
- name of process to place in syslog messages (default is mfsmetalogger)
- LOCK_MEMORY
- whether to perform mlockall() to avoid swapping out mfsmetalogger process (default is 0, i.e. no)
- LIMIT_GLIBC_MALLOC_ARENAS
- limit malloc arenas to given value - prevents server from using huge amount of virtual memory (Linux only, default is 4)
- DISABLE_OOM_KILLER
- disable out of memory killer (Linux only, default is 1)
- NICE_LEVEL
- nice level to run daemon with (default is -19 if possible; note: process must be started as root to increase priority)
- FILE_UMASK
- set default umask for group and others; user has always 0; default is 027 - block write for group and block all for others
- DATA_PATH
- where to store metadata files
RUNTIME OPTIONS
Changes in this section require only process reload.
- BACK_LOGS
- number of metadata change log files (default is 50)
- BACK_META_KEEP_PREVIOUS
- number of previous metadata files to be kept (default is 3)
- META_DOWNLOAD_FREQ
- metadata download frequency in hours (default is 24, at most BACK_LOGS/2)
- SYSLOG_MIN_LEVEL
- minimum level of messages that will be reported by matalogger; levels in order of importance: ERROR, WARNING, NOTICE, INFO, DEBUG (default is INFO)
- SYSLOG_ELEVATE_TO
- reported messages of level lower than set by this option will be elevated to this level (i.e. if SYSLOG_MIN_LEVEL is set to DEBUG and SYSLOG_ELEVATE_TO is set to NOTICE, all INFO and DEBUG messages will be sent to syslog as NOTICE ; default is NOTICE)
MASTER CONNECTION OPTIONS
Changes in this section require only process reload.
- MASTER_RECONNECTION_DELAY
- delay in seconds before trying to reconnect to master after disconnection (default is 5)
- BIND_HOST
- local address to use for master connections; default is *, i.e. default local address
- MASTER_HOST
- address of MooseFS master host to connect with (default is mfsmaster)
- MASTER_PORT
- number of MooseFS master port to connect with (default is 9419)
- MASTER_TIMEOUT
- timeout (in seconds) for master connections (default is 10)
COPYRIGHT
Copyright (C) 2026 Jakub Kruszona-Zawadzki, Saglabs SA
This file is part of MooseFS.
MooseFS 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 2 (only).
MooseFS 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 this program; if not, see <https://www.gnu.org/licenses/>.
SEE ALSO
mfsmetalogger(8)
| May 2026 | MooseFS 4.59.2-1 |