mfscsstatsdump(8)
| mfscsstatsdump(8) | This is part of MooseFS | mfscsstatsdump(8) |
NAME
mfscsstatsdump - dump usage data from chunkserver stats file in csv or png format
SYNOPSIS
mfscsstatsdump -f fields [-i stats_file] [-r range][-s separator] [-p png_filename [-x chart_width] [-y chart_height]] [-hHd]
DESCRIPTION
mfscsstatsdump dumps usage data from chunkserver stats file. These are the same data sets that are used to make GUI charts. Output can be either in text format (csv) or in graphical format (png). That means -p, -x and -y options are mutually exclusive with -h, -H and -d options.
MooseFS chunkserver saves the stats file in the DATA_PATH directory - see mfschunkserver.cfg(5)
OUTPUT
Text output - text (csv) file where first column is a timestamp (or date if -d option was specified), the following column are what was specified with the -f options, formatted according to used options (none, -s and -h or -H)
Graphical output - one png file with a chart is created for every field specified with the -f option, according to the naming scheme declared with the -p option. Size may be adjusted with -x and -y options.
OPTIONS
- -f
- field names separated by ',' (see FIELDS section); at least one field is mandatory; if an asterisk (*) is used, all fields are dumped
- -i
- name of mfs binary stats file (default: default_data_path/csstats.mfs)
- -r
- range type: 0 - short range (minute) 1 - medium range (6 minutes) 2 - long range (30 minutes) 3 - very long range (day)
- -s
- specify column separator (default: tabulator)
- -p
- optional PNG filename (field name will be added before .png; YYYY -> YYYY_FIELD.png, YYYY.png -> YYYY_FIELD.png)
- -x
- PNG chart width (default: 1600)
- -y
- PNG chart height (should be divisible by 20 - if not then it will be adjusted; default:320)
- -h
- "human-readable" numbers using base 2 prefixes (IEC 60027)
- -H
- "human-readable" numbers using base 10 prefixes (SI)
- -d
- show timestamps in YYYY-MM-DD HH:MM format
FIELDS
- ucpu
- User cpu usage
- scpu
- System cpu usage
- cpu
- Total cpu usage (in csv sum of scpu and ucpu, in png shows both in different colors)
- masterin
- Data received from master
- masterout
- Data sent to master
- csrepin
- Data received by replicator
- csrepout
- Data sent by replicator
- csservin
- Data received by csserv
- csservout
- Data sent by csserv
- bwin
- Data bandwidth in (in csv sum of csrepin and csservin, in png shows both in different colors)
- bwout
- Data bandwidth out (in csv sum of csrepout and csservout, in png shows both in different colors)
- hdrbytesr
- Bytes read (headers)
- hdrbytesw
- Bytes written (headers)
- hdrllopr
- Low level reads (headers)
- hdrllopw
- Low level writes (headers)
- databytesr
- Bytes read (data)
- databytesw
- Bytes written (data)
- datallopr
- Low level reads (data)
- datallopw
- Low level writes (data)
- hddread
- HDD read (in csv sum of hdrbytesr and databytesr, in png shows both in different colors)
- hddwrite
- HDD write (in csv sum of hdrbytesw and databytesw, in png shows both in different colors)
- hddopsr
- HDD low level read (in csv sum of hdrllopr and datallopr, in png shows both in different colors)
- hddopsw
- HDD low level write (in csv sum of hdrllopw and datallopw, in png shows both in different colors)
- hlopr
- High level reads
- hlopw
- High level writes
- rtime
- Read time
- wtime
- Write time
- repl
- Replicate chunk ops
- create
- Create chunk ops
- delete
- Delete chunk ops
- version
- Set version ops
- duplicate
- Duplicate ops
- truncate
- Truncate ops
- duptrunc
- Duptrunc (duplicate+truncate) ops
- test
- Test chunk ops
- load
- Server load
- memoryrss
- Resident memory usage
- memoryvirt
- Virtual memory usage
- mem
- Total memory usage (in csv is the same as memoryvirt, in png shows both memoryrss and memoryvirt using two colors)
- movels
- Low speed move ops
- movehs
- High speed move ops
- move
- Low speed + high speed move ops (in png shows movels and movehas using two colors)
- change
- Chunk changes in metadata (sum of version + duplicate + truncate + duptrunc + split)
- split
- Split ops
- usedspace
- Used HDD space in bytes (mark for removal excluded)
- totalspace
- Total HDD space in bytes (mark for removal excluded)
- space
- Total HDD space (in csv same as totalspace, in png shows both usedspace and totalspace using two colors)
- chunkcount
- Number of stored chunks (mark for removal excluded)
- tdusedspace
- Used HDD space in bytes on disks marked for removal
- tdtotalspace
- Total HDD space in bytes on disks marked for removal
- tdchunkcount
- Number of chunks stored on disks marked for removal
- copychunks
- Number of chunks stored in copy format (all disks)
- ec4chunks
- Number of chunk parts stored in EC4 format (all disks)
- ec8chunks
- Number of chunk parts stored in EC8 format (all disks)
- chunks
- Sum of copychunks + ec4chunks + ec8chunks (in png shows all three in different colors)
- hddok
- Number of valid folders (hard drives)
- hddmfr
- Number of folders (hard drives) that are marked for removal
- hdddmg
- Number of folders (hard drives) that are marked as damaged
- hddcnt
- Number of folders (hard drives) regardless of status, aka sum of hddok + hddmfr + hdddmg (in png shows all three in different colors)
- udiff
- Difference in usage percent between the most and least used disk
REPORTING BUGS
Report bugs to <bugs@moosefs.com>.
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
mfschunkserver(8), mfsstatsdump(8)
| May 2026 | MooseFS 4.59.2-1 |