[
http://jira.qos.ch/browse/LBCLASSIC-317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12344#action_12344
]
David J. M. Karlsen commented on LBCLASSIC-317:
-----------------------------------------------
And my assumptions about performance is from the page:
http://logback.qos.ch/manual/configuration.html
which says "Given that ReconfigureOnChangeFilter is invoked every time any
logger is invoked, the filter is performance critical. In order to improve
performance, instead of checking whether to scan or not on every logger
invocation, ReconfigureOnChangeFilter is in reality "alive" only once every 16
logging operations. In short, when a configuration file changes, it will be
automatically reloaded after a delay determined by the scanning period and
several logger invocations. "
> Improve reconfigure performance
> -------------------------------
>
> Key: LBCLASSIC-317
> URL: http://jira.qos.ch/browse/LBCLASSIC-317
> Project: logback-classic
> Issue Type: Improvement
> Components: Other
> Affects Versions: 1.0.0
> Environment: N/A
> Reporter: David J. M. Karlsen
> Assignee: Logback dev list
>
> Looking at the code
> http://logback.qos.ch/xref/ch/qos/logback/classic/turbo/ReconfigureOnChangeFilter.html
> it seems like the reconfigure stuff is checked at every 16th logger use.
> Wouldn't it be better to save the timestamp of the configuration file, and
> instead of number of invocations, measure the time since last reconfig, and
> check the delta until "now", and if it has passed, check the file timestamp
> again if it is newer.
> In a busy application 16 log statements will be called very often, so by
> using a period of let's say 30 seconds would save a lot of checking?
--
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
_______________________________________________
logback-dev mailing list
[email protected]
http://mailman.qos.ch/mailman/listinfo/logback-dev
