[kepler-dev] [Bug 2315] - Unable to run multiple Kepler instances simultaneously

bugzilla-daemon@ecoinformatics.org bugzilla-daemon at ecoinformatics.org
Fri May 11 08:34:58 PDT 2007


------- Comment #5 from cxh at eecs.berkeley.edu  2007-05-11 08:34 -------
Matt writes:

The issue is that Kepler uses a backend relational db for caching and
several data processing activities.  That relational db (hsql) stores
its files in a subdir of the ~/.kepler directory.  If more than one
instance of Kepler tries to start up, you get the exception that
Christopher listed.

One potential workaround is to have the script that runs the multiple
instances run from different accounts, and therefore each instance would
use a different .kepler folder and therefore different .hsql db.  The
limitation is not really on running more than one instance of kepler on
a machine -- its running more than one instance of Kepler in a single
user account.  Any workaround that allows each process to have its own
.kepler dir will work.  Of course, the downside is that these processes
will not share the cache, and therefore large data downloads, etc, will
have to be repeated for each instance.

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