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List:       opennms-buglist
Subject:    [Buglist] [Bug 3519] New: improve performance for creating KSC reports
From:       bugzilla () opennms ! org (bugzilla at opennms ! org)
Date:       2010-01-22 10:48:48
Message-ID: bug-3519-627 () http ! bugzilla ! opennms ! org/
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http://bugzilla.opennms.org/show_bug.cgi?id=3519

           Summary: improve performance for creating KSC reports
           Product: OpenNMS
           Version: 1.6.1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P3
         Component: webUI - Reporting
        AssignedTo: buglist at opennms.org
        ReportedBy: michael.seibold at barmer-gek.de


When there are a LOT of data collections, creating KSC reports takes a lot of
time. A Trace with dynatrace showed why going to the "Reports -> KSC
Performance, Nodes, Domain" takes so long (thought it would be I/O): found out
that it's a very great number of small sql requests against the postgres db,
all are relatively fast, but it's the sum of them taking up the time.

So maybe one day when someone rewrites this part of code he might take a look
at this problem.


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