Indeed, the delegation is done first (without &) and then the set of globusrun-ws are with &.
The following sentence from http://www.globus.org/toolkit/releasenotes/4.0.4/ may explain why: "The service engine and clients are not thread-safe" Is this means that any client call is not thread-safe? ~Belaid. > Date: Wed, 21 Jul 2010 15:16:59 -0500 > From: [email protected] > CC: [email protected] > Subject: Re: [gt-user] Threads and globusrun-ws/globus-credential-delegate. > > You must not add & at the end of the globus-credential-delegate > command, because the job submission commands require the delegation > command to have finished. Otherwise there won't be an epr of a delegated > credential. > > Ok, I think what I get out of this is: It works sequentially (that is what > I wanted to confirm, so the usage of the commands is ok), but maybe not > using pthreads. I don't know what the problem might be. > > Maybe Joe Bester who wrote the command-line tools can provide more input > on this. > > Martin > > Belaid MOA wrote: > > In the plain shell script as is, no error is thrown. But when we add & > > at the end of each line, we get the error similar to the one we got from > > using pthreads. > > > > ~Belaid. > > > >> Date: Wed, 21 Jul 2010 14:48:41 -0500 > >> From: [email protected] > >> To: [email protected] > >> CC: [email protected] > >> Subject: Re: [gt-user] Threads and > > globusrun-ws/globus-credential-delegate. > >> > >> I'm sorry, I might be a bit dense but it's still not entirely > >> clear to me: if you run the following in a plain shell script: > >> > >> globus-credential-delegate -h <scheduler> <eprFileName> > >> globusrun-ws -submit -batch -F <scheduler> -Ft <factory> -S -Jf > > <eprFileName> -o JobIdFile -f <jobDescFile> > >> globusrun-ws -submit -batch -F <scheduler> -Ft <factory> -S -Jf > > <eprFileName> -o JobIdFile -f <jobDescFile> > >> globusrun-ws -submit -batch -F <scheduler> -Ft <factory> -S -Jf > > <eprFileName> -o JobIdFile -f <jobDescFile> > >> > >> Do the jobs succeed or fail? > >> > >> Martin > >> > >> > >> Belaid MOA wrote: > >> > Thanks a lot Martin for looking at this. > >> > > >> > 1- In the shell script, I run: > >> > > >> > globus-credential-delegate -h $scheduler $eprName > >> > > >> > 2- The command I call in each thread is: > >> > string sysCommand = "globusrun-ws -submit -batch -F "+scheduler+" > >> > -Ft "+factory+" -S -Jf "; > >> > sysCommand.append(eprName); > >> > sysCommand.append(" -o JobIdFile"); > >> > sysCommand.append(" -f "); > >> > sysCommand.append(jobDescFile); > >> > //submit the request > >> > system(command.c_str()); > >> > > >> > 3- The error is: > >> > > >> > $ globusrun-ws -status -j > >> > JobId: 94110cc2-9376-11df-9044-0019d1a > >> > Current job state: Failed > >> > globusrun-ws: Job failed: Staging error for RSL element fileStageIn. > >> > Connection creation error [Caused by: java.io.EOFException] > >> > Connection creation error [Caused by: java.io.EOFException] > >> > > >> > I do not have access to the GT4 log container on the PBS head node :(. > >> > > >> > ~Belaid. > >> > > >> >> Date: Wed, 21 Jul 2010 10:40:26 -0500 > >> >> From: [email protected] > >> >> CC: [email protected] > >> >> Subject: Re: [gt-user] Threads and > >> > globusrun-ws/globus-credential-delegate. > >> >> > >> >> Can you paste the exact commands you use in the system calls, and the > >> >> error you get in the concurrent scenario? > >> >> > >> >> Martin > >> >> > >> >> Belaid MOA wrote: > >> >> > That's right Martin. For each thread, I just call > >> >> > system("globus-credential-delegate ... ") and use the epr in > >> >> > system("globusrun-ws ...."). That's where I do not get any error. > >> >> > If, however, > >> >> > I call system("globusrun-ws ...") on each thread using a single epr > >> >> > (created in the shell script before running the C program), then I > >> >> > started getting RSL stagein element error. > >> >> > > >> >> > Thanks a lot Martin for looking at this. > >> >> > > >> >> > ~Belaid. > >> >> > > >> >> > > >> >> >> Date: Wed, 21 Jul 2010 09:55:16 -0500 > >> >> >> From: [email protected] > >> >> >> CC: [email protected] > >> >> >> Subject: Re: [gt-user] Threads and > >> >> > globusrun-ws/globus-credential-delegate. > >> >> >> > >> >> >> Hi, > >> >> >> > >> >> >> I'm not sure I get this question right, and I'm also not a C guy > >> > anymore. > >> >> >> > >> >> >> Does it work if you run globus-credential-delegate and globusrun-ws > >> >> > sequentially > >> >> >> as command-line tools? > >> >> >> > >> >> >> I.e. > >> >> >> 1. Call globus-credential-delegate and store the EPR somewhere. > >> >> >> 2. Then use it for several globusrun-ws job submissions. > >> >> >> > >> >> >> Martin > >> >> >> > >> >> >> Belaid MOA wrote: > >> >> >> > Hi everyone, > >> >> >> > Just a quick question, I am using pthreads in C to run > > globusrun-ws > >> >> >> > and globus-credential-delegate concurrently on a GT4 PBS cluster. > >> >> >> > I noticed that using a single system call to > >> > globus-credential-delegate > >> >> >> > when submitting a set of jobs produces RSL stagein element > > error (The > >> >> >> > jobs are using > >> >> >> > the same epr produced by the single call to > >> > globus-credential-delegate). > >> >> >> > This does not happen when globus-credential-delegate is called > >> > for every > >> >> >> > job (each job has its own unique epr). > >> >> >> > > >> >> >> > Is that mean that globusrun-ws/globus-credential-delegate are not > >> >> >> > thread-safe? > >> >> >> > > >> >> >> > Thanks a lot in advance. > >> >> >> > ~Belaid. > >> >> >> > > >> >> >> > > >> > ------------------------------------------------------------------------ > >> >> >> > Turn down-time into play-time with Messenger games Play Now! > >> >> > > <http://go.microsoft.com/?linkid=9734381> > >> >> >> > >> >> > > >> >> > > > ------------------------------------------------------------------------ > >> >> > Look 'em in the eye: FREE Messenger video chat Chat Now! > >> >> > <http://go.microsoft.com/?linkid=9734382> > >> >> > >> > > >> > ------------------------------------------------------------------------ > >> > Look 'em in the eye: FREE Messenger video chat Chat Now! > >> > <http://go.microsoft.com/?linkid=9734382> > >> > > > > ------------------------------------------------------------------------ > > Turn down-time into play-time with Messenger games Play Now! > > <http://go.microsoft.com/?linkid=9734381> > Look 'em in the eye: FREE Messenger video chat Chat Now! _________________________________________________________________ Learn more ways to connect with your buddies now http://go.microsoft.com/?linkid=9734388
