I don't understand the code in ERXAjaxSession.java:208-213 very well but I can see that the size of the page replacement cache referred to by that code is growing with every AJAX request until it is >= two times the size specified by er.extensions.maxPageReplacementCacheSize. From there on it removes entries from there.
At this point if I close the dialog (AMD) and then click on the link on the page I get the "You backtracked too far" error. Anybody understands that code? :-) I'm gonna compare with my test Wonder app which all it has is the AMD and link on the page to test this and try to find out why I don't get the error there. On Jul 14, 2011, at 12:11 PM, Ricardo J. Parada wrote: > > > I don't get the error if I set er.extensions.maxPageReplacementCacheSize=50 > in my Properties.dev file. > > So now I'm focusing on ERXAjaxSession.java:208-213 to see if that code to try > to figure out if that code has anything to do with the problem I have when I > reduce the cache size. > > > > > > On Jul 13, 2011, at 10:36 PM, Alexis Tual wrote: > >> Hi, >> >> have you tried to raise the er.extensions.maxPageReplacementCacheSize >> (default is 30) ? It should delay the page restauration error, not fixing >> the real issue... and if you have few users and enough memory, it might be >> the cheapest way to get it done. >> Anyway, I filled a jira for this a year ago >> http://issues.objectstyle.org/jira/browse/WONDER-545 (Don't try the attached >> patch though, it's worse :)) >> >> Still in Quebec, back to Poutine free area soon >> >> Alex >> >> Le 12 juil. 2011 à 19:29, Ricardo J. Parada a écrit : >> >>> >>> On Jul 12, 2011, at 5:53 PM, Chuck Hill wrote: >>> >>>> >>>> On Jul 12, 2011, at 2:45 PM, Ricardo J. Parada wrote: >>>> >>>>> >>>>> On Jul 12, 2011, at 4:52 PM, Chuck Hill wrote: >>>>> >>>>>> Hi Ricardo, >>>>>> >>>>>> On Jul 12, 2011, at 1:35 PM, Ricardo J. Parada wrote: >>>>>>> >>>>>>> Does anybody have an idea what could be causing this problem? The user >>>>>>> clicks on an AjaxModalDialogOpener which opens the dialog. Then the >>>>>>> user does a whole bunch of stuff in the dialog that involves many clicks >>>>>> >>>>>> Does it still happen if they don't make so many clicks? >>>>> >>>>> If they make a few clicks then it works okay. >>>>> >>>>> >>>>>>> then finally clicks a DONE link to close the dialog. >>>>>> >>>>>> Are all of these links and clicks Ajax actions? >>>>>> >>>>> >>>>> Yes, they are clicking on links generated by AjaxSubmitButton components >>>>> to be exact. :-) >>>> >>>> And you are certain that there are no /wo/ or /wa/ requests mixed in here? >>> >>> I set this property in my Properties.dev: >>> >>> log4j.logger.er.extensions.ERXApplication.RequestHandling=DEBUG >>> >>> and then I looked at all the uri's of the requests coming in. They have >>> /ajax/ in there and when the dialog first comes up I see a few /_wr_/ and I >>> guess the browser caches those since I don't see requests for those anymore >>> on subsequent requests after the dialog is displayed. >>> >>> All the requests for the "many clicks" I mentioned have /ajax/ in them. I >>> don't see any /wo/ requests mixed in. >>> >>> Also I set a breakpoint in ERXAjaxSession.java at the only place it calls >>> super.savePage() where I assume the current page would be saved but I never >>> hit the breakpoint. I would think that regular component requests would be >>> generating new context IDs and therefore saving the page in the cache for >>> those context IDs. But I don't see the page getting saved. :-/ >>> >>> >>>> >>>>>>> The dialog has a closeUpdateContainerID bound with the id of an ajax >>>>>>> update container to refresh, which it does refresh upon closing the >>>>>>> dialog. But then the user clicks on a link on the page that is outside >>>>>>> the refreshed AjaxUpdateContainer and the app displays the error "You >>>>>>> backtracked too far. The application backtracking limit of 30 has been >>>>>>> exceeded." >>>>>> >>>>>> Ajax links or regular component actions links? I do what seems to be >>>>>> the same thing (except maybe the "does a whole bunch of stuff in the >>>>>> dialog") and have not had any problems. >>>>>> >>>>> >>>>> They are regular component action links. The context ID for which the >>>>> page is being restored is 22. >>>> >>>> The original URL is 21? >>>> >>> >>> Well, I just put in there a <wo:link string="test" action="$test"/> and by >>> inspecting that link after I close the ajax modal dialog and the update >>> container refreshes the href for the link is: >>> >>> http://192.168.1.9:53295/cgi-bin/WebObjects/Phynance.woa/wo/EmqPpwSYBiOiS7PPSLDXzw/8.0.0.9.1.1.13.1.5.1.2.1.1.3.51 >>> >>> and clicking that generates the "You backtracked too far" error. >>> >>> >>>> >>>> >>>>>> The key to tracking this down is to know if it is the Ajax or the >>>>>> regular page cache that is missing the component. >>>>>> >>>>> >>>>> I'm stepping through the restorePageForContextID() in ERXAjaxSession.java >>>>> but I'm not sure what to look for. >>>> >>>> >>>> Sorry, I just meant if the URL that caused the error was a /ajax/ or /wo/ >>>> URL. It sounds like a /wo/ URL so that suggests to me that something in >>>> your dialog is generating /wo/ or /wa/ requests that are pushing the page >>>> out of the standard page cache. >>> >>> I did not see any /wo/ nor /wa/ requests. They are all /ajax/ requests. >>> >>> Maybe I'll try to create a test Wonder app with an ajax modal dialog with a >>> single ajax link in it that displays the current time when clicked... Then >>> I can click it many many times. Then close the dialog and then click on a >>> link on the page afterwards to see if I can reproduce. >>> >>> >>> >>> >>>> Chuck >>>> >>>> -- >>>> Chuck Hill Senior Consultant / VP Development >>>> >>>> Come to WOWODC this July for unparalleled WO learning opportunities and >>>> real peer to peer problem solving! Network, socialize, and enjoy a great >>>> cosmopolitan city. See you there! http://www.wocommunity.org/wowodc11/ >>>> >>> >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) >>> Help/Unsubscribe/Update your Subscription: >>> http://lists.apple.com/mailman/options/webobjects-dev/alexis.tual%40gmail.com >>> >>> This email sent to alexis.t...@gmail.com >> > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/webobjects-dev/rparada%40mac.com > > This email sent to rpar...@mac.com
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