Uploaded image for project: 'OptaPlanner'
  1. OptaPlanner
  2. PLANNER-288

Multi-tenancy: SolverFactory.buildSolver is slow when <scoreDrl> usage because KieBase is rebuild every time

    XMLWordPrintable

Details

    Description

      The XmlSolverFactory.buildSolver() method takes about 5-10 seconds to execute which adds a significant amount of time to each execution of the engine (especially for small problems). The large majority of that time is building the KieBase object as seen in the screenshot below.

      Ideally Solvers should be lightweight (like EntityManager in JPA) and their creation should not take any noticeable time.

      Required in a multi-tenant environment.

      Attachments

        Issue Links

          is duplicated by

          Task - Represents a small unit of work that is not end-user facing. PLANNER-2221 Cache SolverFactory's KieBase, etc (and in Quarkus build it at build time)

          • Minor - To be worked after urgent, high, and medium priorities are resolved. This term is chosen when the severity of the issue is low, or the complexity or effort to correct it may be higher, relatively speaking. For low priority issues, known workarounds exist or are not needed due to the trivial effort needed to address the issue.
          • Open
          is incorporated by

          Story - Created by Jira Software - do not edit or delete. Issue type for a user story. PLANNER-304 Make OptaPlanner even faster (less slow) and even more scalable

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved
          is related to

          Feature Request - Feature requests from customers and/or users PLANNER-253 Solver configuration must be able to use KieSession defined in kmodule.xml

          • Critical - To be worked on immediately following BLOCKER issues.
          • Resolved
          relates to

          Feature Request - Feature requests from customers and/or users PLANNER-344 KContainer support: kie-api wrapper for SolverFactory and Solver so Workbench and Execution Server can treat it like a kjar

          • Critical - To be worked on immediately following BLOCKER issues.
          • Resolved

          Activity

            People

              Unassigned Unassigned
              code4dc@gmail.com Eugene Shvartsman (Inactive)
              Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

                Created:
                Updated: