[jira] Updated: (ODE-586) Reuse And Reduce Process Memory

["Alex Boisvert (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ODE-586?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alex Boisvert updated ODE-586:
------------------------------

    Fix Version/s:     (was: 1.3.3)
                   1.3.4

> Reuse And Reduce Process Memory
> -------------------------------
>
>                 Key: ODE-586
>                 URL: https://issues.apache.org/jira/browse/ODE-586
>             Project: ODE
>          Issue Type: Improvement
>          Components: Axis2 Integration, BPEL Compilation/Parsing, BPEL Runtime
>    Affects Versions: 1.2
>            Reporter: Karthick Sankarachary
>            Assignee: Karthick Sankarachary
>             Fix For: 1.3.4
>
>
> This is a meta issue to track all solutions geared towards reducing the footprint of processes. Up until now, memory optimization of processes has been an afterthought, and that calls for a change. There are a number of ways in which we can reduce the in-memory size of processes, including but not limited, to the following:
> a) Employ a flyweight pattern to share identical resources within the process model. This is analogous to the approach taken by string interning, only we want to it to be more generic.
> b) Refactor one or more parts of the process model in terms of a leaner and meaner data structure. Since this may result in a structural change in the serialized bytes of the process, care should be taken to maintain backwards compatibility.
> c) Reuse shared resources across different process models. This involves determining whether or not a resource is shareable, and if so, storing them in a system-wide cache. A reference counting mechanism may be used to manage the lifecycle of the cache.
> In the following comment, we will describe a solution based on approach (a).

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