The problem is getting worse, Now several users have sent me similar errors, all on the new version of an app that has been running (I thought reliably) for 1 1/2 years.
The error is like Class$yE: Unable to initiate the asynchronous service invocation (MyDataService_Proxy.readRecords) -- check the network connection And the same apps continue to work fine for me on my internet connection. So somehow GWT RPC is failing for some class of users out there. Very confusing. I look at tomcat logs and apache logs and I see no activity corresponding to the time when the failure happened. On Monday, February 27, 2012 11:43:05 AM UTC-8, JoseM wrote: > > I don't think it's directly related to the proxy pattern that Dan > mentioned. It seems to be that your user doesn't have great internet > access, or there is some issue in the connection between that user and your > web server. It seems that the error message happens when the browser is > not able to communicate (reliably) with the web server. > > Here is a related link that could help you out: > http://stackoverflow.com/questions/5258434/unable-to-initiate-the-asynchronous-service-invocation > > > On Monday, February 27, 2012 1:56:32 PM UTC-5, John Malpas wrote: >> >> Thanks that is interesting. What I know is, >> I am writing the "MyDataService" part, and somehow >> GWT must be writing the "MyDataService_Proxy" part. >> >> And then there is this one (thankfully) very vocal >> user, whose access to the RPC needed by the application >> goes through the "MyDataService_Proxy" part, >> and it works for him only occasionally. >> >> I would like to be able to test the "MyDataService_Proxy" >> part from where I am developing, or at least from >> somewhere nearby. >> >> On Feb 26, 7:20 am, Dan <[email protected]> wrote: >> > That error message suggests a different kind of proxy, >> http://en.wikipedia.org/wiki/Proxy_pattern. >> > >> > On Feb 25, 8:40 pm, John Malpas <[email protected]> wrote: >> > >> > >> > >> > >> > >> > >> > >> > > I have several GWT (2.4) applications out there. >> > >> > > One in a while, a user writes in with a problem, >> > > where it is clear the RPC is not working, and it >> > > is clear there is some proxy involved in their access >> > > to the application. >> > >> > > (Most recent: "Unable to initiate the asynchronous service invocation >> > > (MyDataService_Proxy.login)") >> > >> > > I need to figure out some way to test access to the >> > > applications through a proxy, so I can at least see what >> > > these users are seeing. The same applications work fine >> > > for me on a variety of browsers and computers. >> > > (My own computers get to the web through ATT DSL with >> > > no proxy involved.) >> > >> > > Has anyone else faced this problem (need to test through >> > > a proxy)? > > > On Monday, February 27, 2012 1:56:32 PM UTC-5, John Malpas wrote: >> >> Thanks that is interesting. What I know is, >> I am writing the "MyDataService" part, and somehow >> GWT must be writing the "MyDataService_Proxy" part. >> >> And then there is this one (thankfully) very vocal >> user, whose access to the RPC needed by the application >> goes through the "MyDataService_Proxy" part, >> and it works for him only occasionally. >> >> I would like to be able to test the "MyDataService_Proxy" >> part from where I am developing, or at least from >> somewhere nearby. >> >> On Feb 26, 7:20 am, Dan <[email protected]> wrote: >> > That error message suggests a different kind of proxy, >> http://en.wikipedia.org/wiki/Proxy_pattern. >> > >> > On Feb 25, 8:40 pm, John Malpas <[email protected]> wrote: >> > >> > >> > >> > >> > >> > >> > >> > > I have several GWT (2.4) applications out there. >> > >> > > One in a while, a user writes in with a problem, >> > > where it is clear the RPC is not working, and it >> > > is clear there is some proxy involved in their access >> > > to the application. >> > >> > > (Most recent: "Unable to initiate the asynchronous service invocation >> > > (MyDataService_Proxy.login)") >> > >> > > I need to figure out some way to test access to the >> > > applications through a proxy, so I can at least see what >> > > these users are seeing. The same applications work fine >> > > for me on a variety of browsers and computers. >> > > (My own computers get to the web through ATT DSL with >> > > no proxy involved.) >> > >> > > Has anyone else faced this problem (need to test through >> > > a proxy)? > > > On Monday, February 27, 2012 1:56:32 PM UTC-5, John Malpas wrote: >> >> Thanks that is interesting. What I know is, >> I am writing the "MyDataService" part, and somehow >> GWT must be writing the "MyDataService_Proxy" part. >> >> And then there is this one (thankfully) very vocal >> user, whose access to the RPC needed by the application >> goes through the "MyDataService_Proxy" part, >> and it works for him only occasionally. >> >> I would like to be able to test the "MyDataService_Proxy" >> part from where I am developing, or at least from >> somewhere nearby. >> >> On Feb 26, 7:20 am, Dan <[email protected]> wrote: >> > That error message suggests a different kind of proxy, >> http://en.wikipedia.org/wiki/Proxy_pattern. >> > >> > On Feb 25, 8:40 pm, John Malpas <[email protected]> wrote: >> > >> > >> > >> > >> > >> > >> > >> > > I have several GWT (2.4) applications out there. >> > >> > > One in a while, a user writes in with a problem, >> > > where it is clear the RPC is not working, and it >> > > is clear there is some proxy involved in their access >> > > to the application. >> > >> > > (Most recent: "Unable to initiate the asynchronous service invocation >> > > (MyDataService_Proxy.login)") >> > >> > > I need to figure out some way to test access to the >> > > applications through a proxy, so I can at least see what >> > > these users are seeing. The same applications work fine >> > > for me on a variety of browsers and computers. >> > > (My own computers get to the web through ATT DSL with >> > > no proxy involved.) >> > >> > > Has anyone else faced this problem (need to test through >> > > a proxy)? > > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/WB7-AW06NXIJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
