Hey dev. group,
As I was working on one of my application pages today I noticed
something that I couldn't explain and was hoping one of you nice folks could
shed some light on it.
-Setting the stage-
One of the pages I'm working on has an AjaxGrid that is periodically (5
secs.) refreshed from an AjaxUpdateContainer. When the update container fires,
it calls an action that calls
displayGroup.setQualifier(displayGroup.qualifier()) to refresh the
ERXBatchingDisplayGroup as noted in the JavaDoc and by Chuck in previous posts.
Now the reason this grid is being updated is because I'm running
processes in the background and the grid shows the status of the processes
(qualified by user). This way I can see when the task completes.
Easy enough.... It seems to work great.
-The dilemma-
Now here's what I don't get. If I log into the application as the same
user from two different machines... When I start a new process on one machine
both of the grids update showing that a new process is running (as expected),
but neither ever update the grid when the process is completed. 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.
Thanks.
Singed,
Curiously Confused (aka Mike)
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