I’ll take a look at the end of the week. There is one more use-case: * if you initiate deployment from node A, but getting proxy on node B (which isn’t deployment initiator) to call service on node A - it may fail with "service not found", this is expected behaviour because we didn't provide such guarantees.
API of getting proxy with timeout should be used in this case: T serviceProxy(String name, Class<? super T> svcItf, boolean sticky, long timeout) вт, 24 дек. 2019 г. в 12:11, Alexey Goncharuk <alexey.goncha...@gmail.com>: > Well, this is exactly the case. The service is deployed from node A, the > proxy is created on node B, and "service not found" exception gets thrown > to a user anyway. Perhaps, the retry happens too fast? > > Created a ticket [1]. > > [1] https://issues.apache.org/jira/browse/IGNITE-12490 > > пн, 23 дек. 2019 г. в 22:08, Vyacheslav Daradur <daradu...@gmail.com>: > > > Hi, Alexey > > > > Please attach a reproducer to the ticket. > > > > As far as I remember we have the following behaviour for the proxies: > > > > Let's assume you have deployed service from node A, then: > > * if you invoke service locally from node A - it is guaranteed to > > service to be deployed and ready to work > > * if you take a proxy from node A to remote node B right after deploy > > - there is might be a race between disco-spi (a message which releases > > deployed service) and comm-spi (remote call works via Compute over > > comm-spi), but it shouldn't affect end-users because the failed > > request will be retried in this case > > > > > > > > > > On Mon, Dec 23, 2019 at 6:55 PM Alexey Goncharuk > > <alexey.goncha...@gmail.com> wrote: > > > > > > Nikolay, > > > > > > Yes, I've rechecked, the new service processor is being used. I'll > file a > > > bug shortly. > > > > > > пн, 23 дек. 2019 г. в 17:33, Николай Ижиков <nizhi...@apache.org>: > > > > > > > Alexey, are you sure, you are testing new service framework? > > > > > > > > Is yes - you definitely should file a bug. > > > > > > > > > 23 дек. 2019 г., в 17:02, Alexey Goncharuk < > > alexey.goncha...@gmail.com> > > > > написал(а): > > > > > > > > > > Igniters, > > > > > > > > > > I have a question based on one of my recent tests debugging. > > > > > > > > > > The test is related to Ignite services. I noticed that sometimes a > > proxy > > > > > invocation of a newly deployed service fails because the service > > cannot > > > > be > > > > > found. I managed to reduce the test to a simple "start two nodes, > > deploy > > > > a > > > > > service, create a proxy, invoke the proxy" scenario. The proxy > > invocation > > > > > fails in about ~80% of runs. > > > > > > > > > > As far as I remember, the new discovery-based service deployment > was > > > > > supposed to be synchronous, so not only non-proxy service instances > > > > should > > > > > work, but the proxies as well. Was my understanding correct? > Should I > > > > file > > > > > a bug for the observed behavior? > > > > > > > > > > --AG > > > > > > > > > > > > > > > > -- > > Best Regards, Vyacheslav D. > > >
