Hi!

Not knowing what 1.3 does, but 1.4 locks pagemap in org.apache.wicket.Session.

**
Martin

2013/7/18 Mateusz Mieszkowski <[email protected]>:
> Hi,
>
> I'm having a problem with quite old version of Wicket (1.3.6) and I'm 
> wondering if this still exists in the latest version as we're getting ready 
> for upgrading.
> The thing is that if the page opened in browser uses SortableDataProvider, 
> iterator method is executed. So far so good...
> But each time user do F5, page refresh creates new http thread and every one 
> of them is trying to process iterator method.
> Since this is the same user/session, I think it is safe to say that only one 
> thread(that is doing the refresh) is necessary and more refreshes should kill 
> http threads that are working to get the same info.
>
> The problem in my system was, that one user's F5 blocked and it caused 
> hundreds of refresh and started hundreds of http thread. I imagine that in 
> worse case scenario it could use up whole thread pool and system would be 
> useless for some time.
>
> I've checked changelogs and jira issues but haven't found anything similar. 
> Could you please let me know if there is a way to avoid such situation?
>
> Kind regards,
> Mateusz Mieszkowski

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