[virt-tools-list] Help with running virt-top from Java file

[Richard W.M. Jones]

On Mon, Oct 17, 2011 at 08:31:28PM +0530, Preethi Ramesh wrote:
> I've been trying to run virt-top to save the usage statistics to a csv file
> from my Java code using process builder. However, this gets executed in the
> Java file but I don't seem to find the file created anywhere. Is executing
> virt-top possible via a Java code? I'm using the example
> here<http://forums.devx.com/showthread.php?t=147403>replacing ls -l
> with virt-top --csv file2.csv.
> 
> I plan to generate the graphs from the csv files to load them on to my Java
> UI. If there are other alternatives to my method, please tell me as I've
> been trying to get one for almost a week now.

I suspect you want to add some other flags, at least --script.  If you
don't use --script then virt-top will try to start up the ncurses
display and that could fail in odd ways when run from a program.

  virt-top --script --csv /tmp/file.csv -n 5

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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