On 2011-12-09, at 3:54 PM, Michael Gargano wrote: >> >>> If I reload the page on one machine, it updates the status and then >>> subsequently the other machine refreshes with the correct status, but I >>> need to poke it. I don't understand why it works fine on the individual >>> machines when I'm logged in only once and acts like this when I have two >>> browsers refreshing the same data. The page generates a new EC. I'm >>> guessing it's some kind of weird locking issue, but I can't figure out >>> what's locking. I'm using optimistic locking and on top of that, these are >>> only reads. >> >> >> One EOF stack or multiple? Try turning on SQL logging to see what is going >> on with the database. > > One EOF stack to the database where this is occurring, multiple in the app > itself, and in production (not the case here) load balanced app servers. > From what I can see in the SQL logs... when it works the way I expect it to, > I see the fetch for the full object. When the refresh is just hanging out, I > see two queries.
I suspect these are coming from different places in the code. You should be able to modify ERXAdaptorChannelDelegate to lock a trace of where the fetches come from. > One that gets the count using the user qualifier and then a select on the > id's for the batch that I'm currently on. That is the ERXBatchingDisplayGroup refreshing. Can you change the underlying fetch spec to refresh refetched objects? > I don't see the fetch for the full object in these cases. That's what's so > confusing. I can't figure out what would be different. The editing context > is getting created at the page level (and cached in an ivar), does that get > cached per page or per thread? If it's per page could it be because they are > actually using the same editing context? It is per page *instance* and they should not be using the same EC. Chuck -- Chuck Hill Senior Consultant / VP Development Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems. http://www.global-village.net/products/practical_webobjects
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