When you did a global configuration for SCP site, white did you provide as
rootRepositoryPath parameter ?
does directory which you enter there exists on SCP server ?

> When you did a global configuration for SCP site,

Prior to start of the build I had completed the Global configuration.

> white did you provide as rootRepositoryPath parameter ?

Host: hostname.domainname.com
Port: 22
Root Repository Path: /home/builds/
Username : root
Password : XXXXXXXXXXXXX
keyfile :

> does directory which you enter there exists on SCP server ?

Yes.

These are my observations.

o Remember there is no issues with single configuration. I am using the same
global configuration. All the files are getting copied into the same directory.
For Eg:
ws/make/Makefile
ws/src/foo.java

Both the files are getting copied under $ROOTDIR/$DEST/*

o Multi configuration project is also trying to copy everything into the same
location. I think this could be the issue. For a multi configuration project,
somehow they all need to be copied into a different directory. There may be a
race condition here. You may have to find out the label or hostname, then copy
them under $ROOTDIR/$DEST/$LABEL/*

o Also it would be so nice if you can provide option for maintaining the
directory structure instead of dumping everything into the same location. Some
like scp –r would normally preserve the directory structure.

Thanks a lot for your quick response. This would really save lot of workaround
that I have been thinking about doing for this issue.

BTW I just created multi configuration project with only one configuration. I am
using $BUILD_NUMBER/$JOB_NAME as my DEST.

Even a simple txt file transfer is struggling.
<LOG>
....
.....
+ /usr/bin/wget -q
http://hostname:8080/hudson//job/matrix/label=linux/33/consoleText
+ mv consoleText consoleText.txt
[SCP] Connecting to vjayaraman-dl.datadomain.com
[SCP] remote folderPath 33/matrix/label=linux,local file:consoleText.txt
[SCP] Trying to create /home/builds/33
[SCP] Trying to create /home/builds/33/matrix
[SCP] Trying to create /home/builds/33/matrix/label=linux

</LOG>

Build is simply running for the last 5mins without much action. Also I have
checked the scp server and it created an empty file but there is no contents.

Ha ha even single configuration project is having problem.

If the project is getting executed from the master node then there is no
issues with transfer. If i choose to tie the single configuration project to
some specific slave node then it is having the same issue as multi configuration.

I remember I had once issue with hanging builds on slave due to non synchronized
clock on master and slave. Even difference in some seconds could be an issue.
I suggest that you check that clocks of master and slaves are synchronized using
some NTP server.

I have three slave machines (solaris 9, linux [fedora core 4] and windows 2003)
attached with my master hudson (running at fedora core4). Time isn't synced
for windows and solaris but both master and slave linux machine time is synced.

I can confirm that single configuration project running on my slave linux
machine isn't working either. Not sure solaris and windows being out of sync has
any issues here, but I would be surprised.

All three of my slave machines are in sync with master now. SCP plugin doesn't
work when executed through one of the slave machine(s) either through single
configuration or multi configuration.