Hi Jacopo, I'm trying to find where the logic described above is happening, am I in the right place at ServiceDispatcher on the runAsync method right next to the checking of pre-auth ECA rules?
Taher Alkhateeb On Mon, Feb 22, 2016 at 5:45 PM, Jacopo Cappellato < jacopo.cappell...@hotwaxsystems.com> wrote: > Hi all, > > I am sharing here the result of an analysis that Nameet Jain and I did to > figure out why, under some circumstances the same seca service was executed > twice. > > The problem is that, when a service is executed as "async" the secas > attached to the "auth" and "in-validate" events are executed two times: at > the time of the call and later at the time of execution. > > Here are the details: > > when you call a service using the async method the following events occur > immediately (i.e. synchronously at the time of the call): > > 1) all SECAs with event="auth" are executed > 2) the user authorization to call the service is checked > 3) all SECAs with event="in-validate" are executed > 4) the service input parameters are validated > 5) the service is submitted for later execution (e.g. added to the > JobSandbox) > > After some time, the job scheduler picks the job from the queue and then > executes it with a *sync* call; at this point all the events that you would > expect to be executed during a sync call occur: > > 1) all SECAs with event="auth" are executed > 2) the user authorization to call the service is checked > 3) all SECAs with event="in-validate" are executed > 4) the service input parameters are validated > 5) all SECAs with event="invoke" are executed > 6) the service is executed > 7) all SECAs with event="out-validate" are executed > 8) the service output parameters are validated > 9) all SECAs with event="return" are executed > 10) there are also other SECAs that are scheduled for execution at > transaction level; the ones with events: "commit", "global-commit", > "global-commit-post-run", "global-rollback" > > As you can see the steps #1, #2, #3 and #4 are executed twice when the > service is called with the runAsync method and specifically all the SECAs > of events "auth" and "in-validate" are executed twice. > > Proposed fix: we could simply remove the execution of "auth" and > "in-validate" secas when the async service is invoked, and defer their > execution at the time the service is actually executed (i.e. picked from > the queue and run). > > Any comments? > > Jacopo >
