[kepler-dev] Multiple instances of kepler

Dan Higgins higgins at nceas.ucsb.edu
Fri Jan 26 11:42:26 PST 2007

    The problem with multiple instances of Kepler is due to the internal 
database (hsql) used for the cache and keeping track of actors for the 
Kepler  actor list. Running multiple workflows can be done using 
'momlexecute' or 'ptexecute'. (There are some ant targets for these 
methods in the build.xml file.) These methods avoid even setting up the 
    Incidently, I disagree with the 'wontfix' decision that Christopher 
quoted for the bug. I think that I should be able to work with multiple 
simultaneous versions of Kepler.

Dan Higgins - NCEAS

Norbert Podhorszki wrote:
> Hi Christopher,
> Uhhoh, or what.
> Then I have to ask that guy, how was he able to execute ten workflows from 
> a script last Fall, since this bug had been resolved a year ago.
> If you happened to misunderstand me, I clarify now: I do not want to run 
> even one copy of Kepler on a machine. I (may) want to execute two 
> workflows created in Kepler at once on the same machine ;-)
> Best regards
> Norbert
> On Thu, 25 Jan 2007, Christopher Brooks wrote:
>> Hi Norbert,
>> See
>> http://bugzilla.ecoinformatics.org/show_bug.cgi?id=2315
>> is marked as resolved and wontfix.
>> Chad writes:
>>> The only way we could fix this is to have multiple .kepler directories
>>> on one machine. This would require a profiling system like morpho has.
>>> Since I don't think this is on our list of things to do, i'm going to
>>> mark this WONTFIX.  If at some point we add a profile system, possibly
>>> when we add authentication, this problem should be fixed.
>> This bug precludes a user using two copies of Kepler on a big server.
>> Maybe a better error message would help?
>> _Christopher
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Dan Higgins                                  higgins at nceas.ucsb.edu
http://www.nceas.ucsb.edu/    Ph: 805-893-5127
National Center for Ecological Analysis and Synthesis (NCEAS) Marine Science Building - Room 3405
Santa Barbara, CA 93195

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