[kepler-dev] [Bug 2328] New: - Memory use problems with multiple EML Datasources

bugzilla-daemon@ecoinformatics.org bugzilla-daemon at ecoinformatics.org
Wed Jan 11 11:41:41 PST 2006


           Summary: Memory use problems with multiple EML Datasources
           Product: Kepler
           Version: 1.0.0beta2
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: actors
        AssignedTo: berkley at nceas.ucsb.edu
        ReportedBy: higgins at nceas.ucsb.edu
         QAContact: kepler-dev at ecoinformatics.org

The workflow 'IPCC_Base_Layers.xml' contains 10 eml2 datasource actors. It is
thus a severe test of multiple datasources. [#16 in ENM_Workflows.html] In
Alpha8, the workflow will open and eventually download all the datasources
(although slowly) with the java heap set to 512M (i.e. the java command line
switch is '-Xmx512m' ) on a Windows machine with 2G of ram.

However, when using the  head of CVS (on 1/11/2006), java 'out of memory' errors
occur when running on the same machine. Out of memeory errors sometimes also
occur when the java memory request is increased to '-Xmx1024m'. [Loading of some
of the data souces appears much faster with the head of CVS; out of memory
problem appears to be a thread problem because not exactly repeatable.]

Dan Higgins

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