[Swift-devel] Re: [Swift-user] Swift Coasters on OSG

[Michael Wilde]

Hi Ketan, 


We should try to talk this week briefly about approaches, etc. But Im delighted that you are plowing ahead! 


One suggestion: try each coaster config manually and fully understand its behavior (and how error messages are manifested). 


That might help you isolate whats happening in the OSG case. 


What we're doing in these OSG scripts is actually one of the *harder* coaster configs; I though you might get a better fell by trying some of the simpler configs manually. 



We need to work out diagrams of each coaster config, so you can see how everything is configured and connects. Look through Mihael's paper, and this web page: http://wiki.cogkit.org/wiki/Coasters 


You need to make sure you understand these concepts: 
- persistent service vs transient service 
- embedded service vs external service (embedded is always transient) 
- passive service vs active service 


Regards, 


Mike 






----- Original Message -----


Hello, 


I have been trying the Swift Coasters on OSG as an exercise from Allan's scripts on CI endpoints (communicado). 


The coasters services seems to start well. However, I get error when I submit the Swift workflow. Following are the details of what I am doing: 


0. source /opt/osg-1.2.16/setup.sh 
ok. 


1. ./mk_catalog.rb whitelist extenci 
contents of whitelist: 
SPRACE_osg-ce.sprace.org.br 
EOF 
Generates empty {worker, slave}.swift, tc.data, {gt2_osg, condor_osg, coaster_osg}.xml 



2. ./start_services.sh 2 


Seems to start service normally as per service-*.log files 


3. swift -config swift.properties -sites.file coaster_osg.xml slave.swift 


To configure services to run in passive mode, no errors 


4. swift -config swift.properties -sites.file condor_osg.xml worker.swift 


Request coaster jobs: no errors 


5. swift -config swift.properties -sites.file coaster_osg.xml sleep.swift 


Submit workflow sleep.swift. 


I get error message: No service contacts available. 


Any clues on this error? 


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

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