Sstrhsrtj

I am trying to synchronize files between two servers: server1 and server2
I created user and gave him rights to RWX on /var/www then I added the following unison configuration file..

root=//var/www/html/

root=ssh://user@server2//var/www/html/environments/simreg/





log = true



ignore=Path cache

ignore=Path vendor

ignore=Path logs



auto=true

batch=true

repeat=watch

#confirmbigdel=true

confirmbigdel=false

fastcheck=true

prefer=newer

silent=false

times=true

owner=true

server = true

confirmmerge = true



backupdir = /var/www/html/environments/backup

ui = text

But when ever i try to run unison, it is unable to create a backup.
The debug is not useful and I fail to realize what i am doing wrong.

user@server2:~$ unison -debug all

[startup] Preferences:

ui = text

host = 

server = true

prefsdocs = false

doc = 

version = false

silent = false

dumbtty = false

testserver = false

showprev = false

selftest = false

confirmmerge = true

retry = 0

repeat = watch

contactquietly = false

key = 

label = 

expert = false

height = 15

auto = true

maxthreads = 0

prefer = newer

force = 

sortnewfirst = false

sortbysize = false

keeptempfilesaftermerge = false

diff = diff -u CURRENT2 CURRENT1

backupdir = /var/www/html/environments/backup

maxbackups = 2

backups = false

backupsuffix = 

backupprefix = .bak.$VERSION.

backuploc = central

copymax = 1

copyquoterem = default

copythreshold = -1

copyprogrest = rsync --partial --append-verify --compress

copyprog = rsync --partial --inplace --compress

rsync = true

fastcheck = true

ignorelocks = false

dumparchives = false

ignorearchives = false

showarchive = false

rootsName = 

fat = false

allHostsAreRunningWindows = false

someHostIsRunningWindows = false

ignore = Path logs

ignore = Path vendor

ignore = Path cache

confirmbigdel = false

batch = true

root = ssh://user@server2//var/www/html/

root = //var/www/html/

killserver = false

halfduplex = false

stream = true

addversionno = false

servercmd = 

sshargs = 

rshargs = 

rshcmd = rsh

sshcmd = ssh

xferbycopying = true

sshversion = 

ignoreinodenumbers = false

links-aux = true

links = default

times = true

group = false

owner = true

numericids = false

dontchmod = false

perms = 1023

rsrc-aux = false

rsrc = default

maxerrors = 1

unicodeCS = false

unicodeEnc = false

unicode = default

someHostIsInsensitive = false

ignorecase = default

timers = false

terse = false

logfile = /var/www/html/.unison/unison.log

log = true

debugtimes = false

debug = all

addprefsto = 

Contacting server...

[remote] Shell connection: ssh (ssh, -l, dev_user, server2, -e, none, unison, -server)

user@server2's password: 

[globals] Checking path '' for expansions

Connected [//serve1//var/www/html/ -> //server2//var/www/html/]

[startup] Roots: 

        //var/www/html/

        ssh://user@server2//var/www/html/

  i.e. 

        //var/www/html/

        ssh://user@server2//var/www/html/

  i.e. (in canonical order)

       /var/www/html/

       //server1//var/www/html/



[props] Setting permission mask to 1777 (1777 and 7777)

[stasher] initBackupsLocal

[stasher] d = /

[stasher] Prefix and suffix regexps for backup filenames have been updated

[server: stasher] initBackupsLocal

[server: stasher] d = /

[server: stasher] Prefix and suffix regexps for backup filenames have been updated

[ui] Nothing changed: sleeping for 10 seconds...

[ui] Nothing changed: sleeping for 10 seconds...

[ui] Nothing changed: sleeping for 10 seconds...

[ui] Nothing changed: sleeping for 10 seconds...

[ui] Nothing changed: sleeping for 10 seconds...

[ui] Nothing changed: sleeping for 10 seconds...

[ui] Nothing changed: sleeping for 10 seconds...

above is the debug print.
but files are located on both server

Your roots seem to be wrongly specified. The leading double slashes in your local path //var/www/html imply a reference a remote server var, which I am sure is not what you mean. Try these instead:

root=/var/www/html

root=ssh://user@server2/var/www/html/environments/simreg

Based on your comment, « Artifacts are deployed on Server1 and then we need to copy them on Server2. » I would suggest that unison is the wrong tool for the job. Instead consider using rsync, which provides a unidirectional copy:

rsync -av --progress /var/www/html/ user@server2:/var/www/html/environments/simreg/

If you want to test this without it actually copying any files, include --dry-run. If you are running it from a batch job (cron script, etc) remove the --progress flag.