microservices

I am developing microservices code from the link : https://github.com/sivaprasadreddy/spring-boot-microservices-series . In this code base, I was successfully able to start the services like "config-service" , "service-registry" , "shoppingcart-ui" , "zipkin-server" etc, but when I tried to start the "inventory-service" , I got the below error. Error below for reference:- org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://localhost:8200/v1/secret/inventory-service": Connect to localhost:8200 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed:

I am developing Spring Boot Microservices example. In this example, I used config-server and licensing-service and deployed successfully on docker . When I call the REST endpoint : http://localhost:8080/v1/organizations/1/licenses , I got the below error. To solve this error, I went through many links already, but none of the solutions worked for me yet. The refer links : I have taken actual code reference from : https://github.com/carnellj/spmia-chapter3 Method org.postgresql.jdbc4.Jdbc4Connection.isValid(int) is not yet implemented https://sbforge.org/jira/browse/BITMAG-508 Error: java.sql

I'm writing a service which will be connecting to a remote postgres server. I'm looking for a good way to determine which exceptions should be treated as transient (worth retrying), and how to define an appropriate policy for connecting to a remote database. The service is using Npgsql for the data access. The documentation says that Npgsql will throw a PostgresException for sql errors and an NpgsqlException for "server related issues". So far the best I have been able to come up with is to assume all exceptions that are not PostgresExceptions should be treated as possibly transient, worth

I have a spring web application. When a user calls save endpoint, system should execute many external calls to save the state in multiple microservices. However, those steps depend on each other. In other words I have a sequence of steps to perform. sequence pattern Just calling a set of steps one by one is not a big deal, I can just create class for each step and call them one by one doing appropriate modifications between the steps. However, each of the steps can fail and if it happens it should be properly reported to the user. Here is a pseudo-code for a straight forward solution: var

I have a simple setup with a Eureka service registration server, a service for the public API and a service that gets called from the public API using RestTemplate. Eureka tells me that the services are successfully registered, but when I call the service @Service public class MyServiceService { @Autowired private RestTemplate restTemplate; private final String serviceUrl; public MyServiceService() { this.serviceUrl = "http://MY-SERVICE"; } public Map<String, String> getTest() { Map<String, String> vars = new HashMap<>(); vars.put("id", "1"); restTemplate.setRequestFactory(new

I am a PhD student in Cloud Computing, I plan to use the microservices based architecture with consul and zeromq for my research project. I had few questions that I am finding hard to understand. Can someone help me out in sharing their experience. We have microservices based on dockers, We have zeromq and we have consul. Can you mention how we could combine all the three together to have a dynamic adaptive environment? Though I understand as to what zeromq, docker and consul is individually, I am still unable to get a clear picture of how all of them function as a whole.We have docker