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csync2.1
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.\" Hey, EMACS: -*- nroff -*-
.TH CSYNC2 "1" "March 2013" "csync2 " "User Commands"
.SH NAME
csync2 \- cluster synchronization tool, 2nd generation
.SH SYNOPSIS
.B csync2
.RI [ -v.. ] " [-C config-name]" " [-D database-dir]" " [-N hostname]" " [-p port]" ...
.SH COPYRIGHT
csync2 is copyright \(co 2004 \- 2013 by LINBIT Information Technologies GmbH
.PP
csync2 is distributed under the GNU public license.
See the file COPYING for details.
.SH DESCRIPTION
This manual page documents briefly the
.B csync2
command.
.RS 0
A verbose manual can be found on the
.B csync2
homepage:
.IP
.B http://oss.linbit.com/csync2/paper.pdf
.PP
\fBcsync2\fP is a program for cluster wide file synchronization.
.SH OPTIONS
.SS "With file parameters:"
.TP
\fB\-h\fR [\-r] file..
Add (recursive) hints for check to db
.TP
\fB\-c\fR [\-r] file..
Check files and maybe add to dirty db
.TP
\fB\-u\fR [\-d] [\-r] file..
Updates files if listed in dirty db
.TP
\fB\-o\fR [\-r] file..
Create list of files in compare\-mode
.TP
\fB\-f\fR [\-r] file..
Force files to win next conflict resolution
.TP
\fB\-m\fR file..
Mark files in database as dirty
.SS "Simple mode:"
.TP
\fB\-x\fR [\-d] [[\-r] file..]
Run checks for all given files and update
remote hosts.
.SS "Without file parameters:"
.TP
\fB\-c\fR
Check all hints in db and eventually mark files as dirty
.HP
\fB\-u\fR [\-d] Update (transfer dirty files to peers and mark as clear)
.TP
\fB\-H\fR
List all pending hints from status db
.TP
\fB\-L\fR
List all file\-entries from status db
.TP
\fB\-M\fR
List all dirty files from status db
.TP
\fB\-S\fR myname peername
List file\-entries from status db for this
synchronization pair.
.TP
\fB\-T\fR
Test if everything is in sync with all peers.
.TP
\fB\-T\fR filename
Test if this file is in sync with all peers.
.TP
\fB\-T\fR myname peername
Test if this synchronization pair is in sync.
.TP
\fB\-T\fR myname peer file
Test only this file in this sync pair.
.TP
\fB\-TT\fR
As \fB\-T\fR, but print the unified diffs.
.IP
The modes \fB\-H\fR, \fB\-L\fR, \fB\-M\fR and \fB\-S\fR return 2 if the requested db is empty.
The mode \fB\-T\fR returns 2 if both hosts are in sync.
.TP
\fB\-i\fR
Run in inetd server mode.
.TP
\fB\-ii\fR
Run in stand\-alone server mode.
.TP
\fB\-iii\fR
Run in stand\-alone server mode (one connect only).
.TP
\fB\-R\fR
Remove files from database which do not match config entries.
.SS "Exit codes:"
.IP
The modes \fB\-H\fR, \fB\-L\fR, \fB\-M\fR and \fB\-S\fR return 2 if the requested db is empty.
The mode \fB\-T\fR returns 2 if both hosts are in sync.
Otherwise, only exit codes 0 (no errors)
and 1 (some unspecified errrors) are expected.
.SS "Modifiers:"
.TP
\fB\-r\fR
Recursive operation over subdirectories
.TP
\fB\-d\fR
Dry\-run on all remote update operations
.TP
\fB\-B\fR
Do not block everything into big SQL transactions. This
slows down csync2 but allows multiple csync2 processes to
access the database at the same time. Use e.g. when slow
lines are used or huge files are transferred.
.TP
\fB\-A\fR
Open database in asynchronous mode. This will cause data
corruption if the operating system crashes or the computer
loses power.
.TP
\fB\-I\fR
Init\-run. Use with care and read the documentation first!
You usually do not need this option unless you are
initializing groups with really large file lists.
.TP
\fB\-X\fR
Also add removals to dirty db when doing a \fB\-TI\fR run.
.TP
\fB\-U\fR
Don't mark all other peers as dirty when doing a \fB\-TI\fR run.
.HP
\fB\-G\fR Group1,Group2,Group3,...
.IP
Only use these groups from config\-file.
.HP
\fB\-P\fR peer1,peer1,...
.IP
Only update these peers (still mark all as dirty).
Only show files for these peers in \fB\-o\fR (compare) mode.
.TP
\fB\-F\fR
Add new entries to dirty database with force flag set.
.TP
\fB\-t\fR
Print timestamps to debug output (e.g. for profiling).
.HP
\fB\-s\fR filename
.IP
Print timestamps also to this file.
.TP
\fB\-W\fR fd
Write a list of directories in which relevant files can be
found to the specified file descriptor (when doing a \fB\-c\fR run).
The directory names in this output are zero\-terminated.
.SS "Database switches:"
.HP
\fB\-D\fR database\-dir or url
.IP
default: /var/lib/csync2
Absolute path: use sqlite database in that directory.
.IP
URLs:
sqlite:///some/path[/database.db3]
sqlite3:///some/path[/database.db3]
sqlite2:///some/path[/database.db]
mysql://[<user>:<password>@]<hostname>/[database]
pgsql://[<user>:<password>@]<hostname>/[database]
.IP
If
.B database
is not given, it defaults to
.B csync2_<qualified hostname>
.IP
Note that for non-sqlite backends, the database name is "cleaned",
characters outside of [0-9][a-z][A-Z] will be replaced with _.
.SS "Creating key file:"
.IP
.B csync2 -k filename
.SS "Environment variables:"
.IP
CSYNC2_SYSTEM_DIR
.IP
Directory containing csync2.cfg and other csync2 system files.
Defaults to /etc.
.SS "Note:"
Csync2 will refuse to do anything if this file is found:
$CSYNC2_SYSTEM_DIR/csync2.lock
.SH "SEE ALSO"
.PD 0
.TP
http://oss.linbit.com/csync2/paper.pdf
.TP
http://git.linbit.com/csync2.git/?a=blob;f=AUTHORS
.PD
.PP
This manual page is a hand-edited help2man processed csync2 help.