I’d suggest using the "-xml” argument, since the output will be easier to parse for web use, I think. That would also never have empty output so you could see exactly what you are getting back.
“Empty” output with the -xml argument looks like: <?xml version='1.0'?> <job_info xmlns:xsd="http://arc.liv.ac.uk/repos/darcs/sge/source/dist/util/resources/schemas/qstat/qstat.xsd";> <queue_info> </queue_info> <job_info> </job_info> </job_info> So maybe that will help. Brooke Storm Staff SRE Wikimedia Cloud Services [email protected] > On May 11, 2021, at 1:15 PM, Huji Lee <[email protected]> wrote: > > Hi, > > Some of the jobs I submit to the grid take a long time (say, 30-60 minutes) > and I would like to check on their status without having to log back into the > labs. > > I was hoping I could run shell_exec('qstat') in PHP and display its output on > a web page. While shell_exec() works with other commands—e.g. echo > shell_exec('whoami') correctly displays my tool's username on the webpage—for > reasons I cannot explain, the output of shell_exec('qstat') is always blank. > When I run qstat on the CLI at that same time, it does show me the familiar > table output of ongoing jobs. > > Any idea why that is the case? Has anyone already created a solution for > fetching a list of active jobs from the grid and displaying it on a web-based > status page for your tool? > > Thanks, > Huji > _______________________________________________ > Wikimedia Cloud Services mailing list > To unsubscribe send an email to [email protected] (formerly > [email protected]) > %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s
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