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) 2025 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)

MooseFS 4.57.5-1                                  February 2025                             mfsmetalogger.cfg(5)