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) 2024 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 MooseFS; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA or visit http://www.gnu.org/licenses/gpl-2.0.html

SEE ALSO¶

mfsmetalogger(8)