[logback-dev] [JIRA] Commented: (LBCLASSIC-172) Use WeakHashMap instead of Hashtable in LoggerContext

[Joern Huxhorn (JIRA)]

    [ http://jira.qos.ch/browse/LBCLASSIC-172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=11453#action_11453 ] 

Joern Huxhorn commented on LBCLASSIC-172:
-----------------------------------------

If a Logger has children then it isn't garbage-collected unless the children are unreachable, too, since Logger keeps a hard reference to its parent.

I haven't found the configuration of the appenders just now. I assume loggers with appenders are created during init of LoggerContext. You could simply keep those loggers referenced in LoggerContext to prevent GC for those specific loggers, then.

> Use WeakHashMap instead of Hashtable in LoggerContext
> -----------------------------------------------------
>
>                 Key: LBCLASSIC-172
>                 URL: http://jira.qos.ch/browse/LBCLASSIC-172
>             Project: logback-classic
>          Issue Type: Bug
>          Components: Other
>    Affects Versions: 0.9.18
>            Reporter: Joern Huxhorn
>            Assignee: Logback dev list
>             Fix For: unspecified
>
>
> Preventing garbage-collection of unused Loggers is a bad idea. 
> The following code should not fail:
> for(int i=0;i<10000000;i++) {
>   LoggerFactory.getLogger("Foo."+i).debug("Foo!");
> }

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://jira.qos.ch/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira