[Swift-devel] Re: Coaster problems with proxy and gsi explained

[wilde at mcs.anl.gov]

For whatever reason, here are the issues:

- mcs is running Ubuntu 10.x on these machines, and seems to no longer include any Sun Javas in its .soft options. So I needed to bring in my own Java.

- mcs doesnt have Globus or OSG packages, so I needed to bring in my own CA cert dir

- the login shell, by default doesnt process .bashrc; the call to .bashrc needs to go in your .profile or similar, and was missing from mine.

- after much reading up on bash startup, and fiddling, I concluded that when swift launches coasters with the ssh provider, only the .bashrc runs, not the profile, so one needs to essentially force the .profile to run in this case, or else set PATH and X509_CERT_DIR from .profile. What I did is have .bashrc call .profile if it was not previously run.

- if either .profile or .bashrc sends anything to stdout, you get this cryptic, mysterious message from swift:
---
stomp$ swift -tc.file tc -sites.file crush.xml cat.swift
Swift svn swift-r3430 cog-r2798

RunID: 20100713-0010-d3r5x92f
Progress:
Exception in thread "sftp subsystem 1" java.lang.OutOfMemoryError: Java heap space
	at com.sshtools.j2ssh.subsystem.SubsystemClient.run(SubsystemClient.java:198)
	at java.lang.Thread.run(Unknown Source)

---
Hence, dont do that :)

So, Jon, you may want to look at my .profile and .bashrc, or do whatever is needed to set JAVA and X509_CERT_DIR correctly, until we figure how how to do this all more cleanly.

- Lastly, getting a proxy from TeraGrid works just fine:

cog-myproxy -S -h myproxy.teragrid.org -p 7514 -l wilde -S anonget

The errors I saw when we tried this last were all due to the env var issues above.

- Mike



----- "Michael Wilde" <wilde at mcs.anl.gov> wrote:

> Mihael, Jon,
> 
> It seems that the problems we were seeing this after noon (in my
> tests) was due to a bad .bashrc.
> 
> I have verified the the cog-myproxy method of creating a proxy for
> coasters-ssh does in fact work.
> 
> Im still trying to debug what env vars are coming from my .bashrc, why
> they are not supplied solely by my .soft, and what in my .bashrc was
> causing the failures I was seeing all afternoon.
> 
> But reverting to the simple .bashrc which I was using last Thu (under
> the mistaken impression that it had no effect) makes coasters work
> again for me, both with a DOEGrids cert and with a proxy made by
> cog-myproxy-logon from my TeraGrid NCSA cert.
> 
> - Mike
> 
> 
> --
> 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