[Swift-user] Swift-MosaStore integration problem

[Emalayan Vairavanathan]

Emalyan, did you try filtering strace to zero in on open/close/creat etc?
Mike could you please explain ?

Also, to try compiling the smallest possible Swift script, like a single trace or assignment statement?
Yes I agree, this may make debugging simple. 

But
 now that I think about it further, why are you running Swift on Mosa at
 all? Dont you just want to test that Swift can execute applications 
using Mosa as the workdirectory (in sites.xml)?
Yes this make sense and help us to make quick progress. I will try this and get back to you.

Thank you

Emalayan




________________________________
From: Michael Wilde <wilde at mcs.anl.gov>
To: Emalayan Vairavanathan <svemalayan at yahoo.com>
Cc: swift-user at ci.uchicago.edu
Sent: Thursday, 27 October 2011 2:59 PM
Subject: Re: [Swift-user] Swift-MosaStore integration problem

Emalyan, did you try filtering strace to zero in on open/close/creat etc?

Also, to try compiling the smallest possible Swift script, like a single trace or assignment statement?

But now that I think about it further, why are you running Swift on Mosa at all? Dont you just want to test that Swift can execute applications using Mosa as the workdirectory (in sites.xml)?

Regards,

- Mike

----- Original Message -----
> From: "Emalayan Vairavanathan" <svemalayan at yahoo.com>
> To: "Michael Wilde" <wilde at mcs.anl.gov>
> Cc: swift-user at ci.uchicago.edu
> Sent: Thursday, October 27, 2011 4:34:11 PM
> Subject: Re: [Swift-user] Swift-MosaStore integration problem
> Thank you Mike, I was using STrace but it seems very complex to find
> the bug. So we are now using the profiler to mimic file system and
> comparing the input and output of its fuse callbacks with Mosa.
> 
> 
> Also I agree with you that Mosa is doing something wired.
> 
> 
> Regards
> Emalayan
> 
> 
> 
> 
> 
> From: Michael Wilde <wilde at mcs.anl.gov>
> To: Emalayan Vairavanathan <svemalayan at yahoo.com>
> Cc: swift-user at ci.uchicago.edu
> Sent: Thursday, 27 October 2011 12:57 PM
> Subject: Re: [Swift-user] Swift-MosaStore integration problem
> 
> Emalyan, can you use strace on the Swift jvm invocation to trave
> Java's systems calls, and debug it in that manner?
> 
> I suspect that Mosa is doing something that's not quite POSIX
> compliant, and confusing Java and hence Swift.
> 
> - Mike
> 
> 
> ----- Original Message -----
> > From: "Emalayan Vairavanathan" < svemalayan at yahoo.com >
> > To: swift-user at ci.uchicago.edu
> > Sent: Thursday, October 27, 2011 2:35:13 PM
> > Subject: [Swift-user] Swift-MosaStore integration problem
> > Dear All,
> >
> >
> >
> >
> >
> >
> >
> > When I try to run the HelloWorld.swift with MosaStore (MosaStore is
> > a
> > distributed storage developed by us) it is terminating with an
> > error.
> >
> >
> >
> > Here HelloWorld.swift script is copied into the MosaStore
> > filesystem.
> > Also Swift has write permission in the file system. Because it can
> > create some temporary files (swift.log and
> > first-20111026-1848-hmo97vu7.log). But then it prints the error
> > below
> > and terminates (I have attached the log files. I am using swift
> > 0.93).
> >
> >
> >
> > Max heap: 259522560
> > Recompilation suppressed.
> > Detailed exception:
> > java.io.FileNotFoundException: /tmp/mount/dir1/first.kml (No such
> > file
> > or directory)
> > at java.io.FileInputStream.open(Native Method)
> > at java.io.FileInputStream.<init>(FileInputStream.java:137)
> > at java.io.FileInputStream.<init>(FileInputStream.java:96)
> > at java.io.FileReader.<init>(FileReader.java:58)
> > at org.globus.cog.karajan.Loader.load(Loader.java:209)
> > at org.griphyn.vdl.karajan.Loader.main(Loader.java:157)
> > Could not start execution.
> > /tmp/mount/dir1/first.kml (No such file or directory)
> >
> >
> > It seems the Mosastore didnt receive any callback to create
> > first.kml.
> > I think, due to some reasons JVM assumes the storage is not
> > available
> > and terminate the swift program. So I am wondering whether you can
> > provide any hint about this issue.
> >
> > Also I would like to build the swift in debug mode in order to run
> > it
> > with jdb (to get more information). Please let me know how to build
> > the swift in debug mode?
> >
> >
> > Thank you
> > Emalayan
> >
> >
> >
> >
> >
> > _______________________________________________
> > Swift-user mailing list
> > Swift-user at ci.uchicago.edu
> > https://lists.ci.uchicago.edu/cgi-bin/mailman/listinfo/swift-user
> 
> --
> Michael Wilde
> Computation Institute, University of Chicago
> Mathematics and Computer Science Division
> Argonne National Laboratory

-- 
Michael Wilde
Computation Institute, University of Chicago
Mathematics and Computer Science Division
Argonne National Laboratory
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