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https://issues.apache.org/jira/browse/IGNITE-12490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17091558#comment-17091558
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Vyacheslav Daradur commented on IGNITE-12490:
---------------------------------------------
Both issues: this and IGNITE-12490 can be fixed by improvements of our
deployment guarantees, read this for details:
[dev-list-thread|http://apache-ignite-developers.2346864.n4.nabble.com/Discovery-based-services-deployment-guarantees-question-td44866.html]
The main idea is allowing
[GridServiceProxy#randomNodeForService|https://github.com/apache/ignite/blob/8cba313c9961b16e358834216e9992310f285985/modules/core/src/main/java/org/apache/ignite/internal/processors/service/GridServiceProxy.java#L283]
to wait service deployment finished if it is registered in the cluster (but
deployment has not finished yet).
It can be achieved in the same manner as for our ["API with a timeout"
here|https://github.com/apache/ignite/blob/8dcd0f1d96dae965a0f5c479e6d0f4b4d50c6e2c/modules/core/src/main/java/org/apache/ignite/internal/processors/service/IgniteServiceProcessor.java#L821http://example.com]
(mentioned as a workaround in current issue description).
Need add some conditions, something like this:
{code:java}
IgniteUuid srvcUid = lookupRegisteredServiceId(name);
if (srvcUid == null)
return null; // Service is not registered in cluster: wasn't
present in cfg and didn't deployed through API
Map<UUID, Integer> top;
while (true) {
ServiceInfo srvcDesc = registeredServices.get(srvcUid);
if (srvcDesc == null) {
if (timeout == 0)
return null;
else
// Wait if someone sent service to deploy (as in current
implementation)
}
top = srvcDesc.topologySnapshot();
if (!top.isEmpty()) {
return top;
}
// Wait using "servicesTopsUpdateMux" while service deployment
finished and the topology will not be empty
// or removed from "registeredServices" in case if deployment
failure
{code}
> Service proxy throws "Service not found" exception right after deploy
> ---------------------------------------------------------------------
>
> Key: IGNITE-12490
> URL: https://issues.apache.org/jira/browse/IGNITE-12490
> Project: Ignite
> Issue Type: Improvement
> Components: managed services
> Affects Versions: 2.8
> Reporter: Alexey Goncharuk
> Priority: Major
> Attachments: ServiceInvokeTest.java
>
>
> In the following scenario:
> * Start nodes A, B
> * Deploy a service on A
> * Create a service proxy on B
> * Invoke the proxy
> The proxy invocation throws a service not found exception. As per discussion
> [on the dev
> list|http://apache-ignite-developers.2346864.n4.nabble.com/Discovery-based-services-deployment-guarantees-question-td44866.html]
> this case should be handled by an automatic retry, however, it's not.
> The reproducer is attached.
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