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Posted to dev@mina.apache.org by "Niklas Gustavsson (JIRA)" <ji...@apache.org> on 2011/06/18 23:41:47 UTC
[jira] [Closed] (FTPSERVER-264) It takes about 1 minute and 100%
CPU to set a "wide" passive port range
(org.apache.ftpserver.DefaultDataConnectionConfiguration$Passive.SetPorts())
[ https://issues.apache.org/jira/browse/FTPSERVER-264?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Niklas Gustavsson closed FTPSERVER-264.
---------------------------------------
Resolution: Fixed
Fix Version/s: 1.0.6
Fixed in rev 1137251 and 1137252.
> It takes about 1 minute and 100% CPU to set a "wide" passive port range (org.apache.ftpserver.DefaultDataConnectionConfiguration$Passive.SetPorts())
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: FTPSERVER-264
> URL: https://issues.apache.org/jira/browse/FTPSERVER-264
> Project: FtpServer
> Issue Type: Bug
> Components: Server
> Affects Versions: 1.0.0-M2
> Environment: Windows
> Reporter: Fred Moore
> Assignee: Niklas Gustavsson
> Fix For: 1.0.6, 1.1.0
>
>
> We observed a long (about 1 minute) plateau of 100% CPU when trying to setPorts() in org.apache.ftpserver.DefaultDataConnectionConfiguration$Passive with "wide" port ranges such as 2122-65535.
> We observed that FTPServer internally performs an apparently very expensive scan on this range.
> Can this be made less CPU intensive and quicker (to shorten server downtime and reduce resource consumption in production)?
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