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From "Emmanuel Lecharny (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (DIRMINA-716) Get rid of "finalize" method in AbstractIoFilterChain.java
Date Tue, 02 Jun 2009 08:15:07 GMT

     [ https://issues.apache.org/jira/browse/DIRMINA-716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Emmanuel Lecharny reassigned DIRMINA-716:

    Assignee: Emmanuel Lecharny

> Get rid of "finalize" method in AbstractIoFilterChain.java
> ----------------------------------------------------------
>                 Key: DIRMINA-716
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-716
>             Project: MINA
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0.0-M5
>            Reporter: Yongxing Wang
>            Assignee: Emmanuel Lecharny
> The finalize method in AbstractIoFilterChain.java can possibly cause OOM error when the
system is under very heavy load. The negative impact of "finalize" method can be found at:
> http://www.fasterj.com/articles/finalizer1.shtml
> AbstractIoFilterChain holds a reference to Session object which can hold a list of unwritten
data. The deterministic run of Finalizer can very well cause memory not fred up on time under
heavy load. And it can certainly cause very bad memory usage pattern and contribute to the
overall heavy system load.

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