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Man Pages


Manual Reference Pages  -  MFSMETADUMP (8)

NAME

mfsmetadump - dump MooseFS metadata info in human readable format

CONTENTS

Synopsis
Description
File Header
Section Header
Sess Section
Nodes Section
Edges Section
Free Section
Quota Section
Xatr Section
Posix Acl Section
Open Section
Chunkservers Section
Chunks Section
Copyright

SYNOPSIS

mfsmetadump metadata_file

DESCRIPTION

mfsmetadump dumps MooseFS metadata info in human readable format. Output consists of several sections with different types of information. Every section consist of header data - rows starting with hash (#) sign - and content data (may be empty).

FILE HEADER

header MooseFS version
version metadata file version
fileid metadata file id

SECTION HEADER

section header section header (section type + version)
length length of section
section type name of section
version hexadecimal representation of section version

SESS SECTION

nextsessionid first free session id
statscount number of stats remembered in each session
SESSION line describing a single session
s session id
p IP address
r root inode number
f session flags
g mingoal and maxgoal
t mintrashtime and maxtrashtime
m maproot uid,gid and mapall uid,gid
d disconnection time (optional)
c current hour stats data
l last hour stats data
i session name (usually local mount point)

NODES SECTION

maxinode maximum inode number used by system
hashelements number of inodes in hash tabble
NODE line with node (inode) description
k node type (-,D,S,F,B,C,L,T,R)
- file
D directory
S socket
F fifo
B block device
C character device
L symbolic link
T trash file
R sustained file (removed open file)
i inode number
# labelset number (10+) or goal (1-9)
e flags
m mode
u uid
g gid
a,m,c atime, mtime and ctime timestamps
t trashtime
d rdevhi,rdevlo (only block and character devices)
p path (only symbolic links)
l file length (only files)
c chunk list (only files)
r sessions that have this file open (only files)

EDGES SECTION

nextedgeid next available edge id (descending)
EDGE line with edge description
p parent inode number
c child inode number
i edge id
n edge name

FREE SECTION

free nodes number of free (reusable) nodes
FREEID line with free inode description
i inode number
f deletion timestamp

QUOTA SECTION

quota nodes number of nodes with quota
QUOTA line with quota description
i inode number
g grace period
e exceeded
f flags
s soft quota exceeded timestamp
si soft inode quota
hi hard inode quota
sl soft length quota
hl hard length quota
ss soft size quota
hs hard size quota
sr soft real size quota
hr hard real size quota

XATR SECTION

XATTR line with xattr description
i inode number
n xattr name
v xattr value

POSIX ACL SECTION

POSIXACL line with acl description
i inode number
t acl type
u user (file owner) permissions
g group permissions
o other permissions
m permission mask
n named permissions - list of objects:
u(U):P permissions P for user with uid U
g(G):P permissions P for group with gid G

OPEN SECTION

OPENFILE line with open file description
s session id
i inode number

CHUNKSERVERS SECTION

chunk servers number of chunkservers
CHUNCKSERVER
  line with chunk server description
i server ip
p server port
# server id
m maintenance mode

CHUNKS SECTION

nextchunkid first available chunk number
CHUNK line with chunk description
i chunk number
v chunk version
t "locked to" timestamp
a archive flag

REPORTING BUGS

Report bugs to <bugs@moosefs.com>.

COPYRIGHT

Copyright (C) 2016 Jakub Kruszona-Zawadzki, Core Technology Sp. z o.o.

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

mfsmaster(8)
Search for    or go to Top of page |  Section 8 |  Main Index


MooseFS 2.0.88-1 MFSMETADUMP (8) March 2016

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