I have created a Microservice with JHipster and I want to add hystrix, but I have a problem.
I had #EnableHystrix on my ServiceApp.java, and #HystrixCommand on method #RequestMapping.
But when I want to access on http://localhost:8081/hystrix.stream (it's the good port), I get this page:
Your request cannot be processed
I do not know from where it comes, security problem, but I can't solve it successfully.
Thanks for your help. Sorry for my bad english.
Jhipster sets by default the actuator property management.context-path to /management
So your hystrix stream should be available at http://localhost:8081/management/hystrix.stream
Related
I basically have the exact same problem as this user's question:
Cannot access api-docs of microservice from spring cloud gateway. Failed to load API definition
Any help is appreciated.
I answered in the post that you mention.
Try to follow my solution: https://stackoverflow.com/a/71996847/18936800
In spring docs I have read about endpoint named "actuator" which is provided by actuator dependency, but I haven't managed to access it on my local testing app.
Question: Does someone know how to access that endpoint? of coarse if it is possible :)
Sub-question 1: If this endpoint exists, then why it is hidden?
Sub-question 2: If this endpoint doesn't exist, how can we notify spring.io to correct documentation page (open some kind of ticket) ?
Details:
I want to access exactly "actuator" endpoint, not other endpoints provided by spring boot actuator (localhost:8080/actuator)
Yes, I have tried to enable that endpoint manually in properties file (endpoints.enabled=true OR endpoints.actuator.enabled=true)
Yes, I have tried to enable/disable endpoints.sencitive property
Yes, other endpoints of actuator work just fine
No special reason why I need that, just want to try it out (just learning new stuff :) )
Please don't just answer "there is no such endpoint dude!", there should be some kind of reason why it is written in the docs
Please use spring boot version which I am using now before answering "it is working for me with these configs" (spring boot version: 1.5.4.RELEASE)
Thank you in advance :)
You must include the Spring Hateoas dependency in order for the /actuator endpoint to become available:
<dependency>
<groupId>org.springframework.hateoas</groupId>
<artifactId>spring-hateoas</artifactId>
</dependency>
Per the docs:
Provides a hypermedia-based “discovery page” for the other endpoints.
Requires Spring HATEOAS to be on the classpath.
I am trying to get Production metrics for my application. I am using Actuator on top of Spring Boot. Actuator exposes an endpoint for that "/metrics". I have Autowired CounterService class to get my own metrics data. I will be displaying the metrics data in one of our Application Management UI. The problem here is that I don't want all the default metrics data, as the Response JSON given back by the /metrics endpoint is kind off heavy for me to parse and most of the default metrics data are useless for me and give it to the UI. I have gone through the Spring Docs, I didn't get any help.
Appreciate your help on this!
Oh So I found a way to deal with the scenario. Actually Spring This GitHub Link pretty much solves my problem. Actuator Supports Reqex support to query for the data you need. So my url looks like this now : http://{{hostname}}/metrics/counter.*.count instead of this http://{{hostname}}/metrics/. Hope this helps.
Have you tried wrapping the response class from metrics, with a Custom class?
I have a simple Zuul app that has a single route in the application.yml to route to my microservice. It's working.
However, what I'm looking for is a more dynamic solution where I can wire up routes dynamically, either through code or perhaps by POSTing to some Zuul endpoints during a build (possibly by using springfox and a swagger definition from microservices). I could not find an API for Zuul.
I'm somewhat aware of Eureka and that seems like a solution to abstract away the routing by doing discovery. However, I'm curious if there's a solution without introducing Eureka. If there's a way to wire up these routes in Zuul during a build vs. having to edit the application.yml every time.
Thanks in advance.
If you go for Eureka this will actually work ootb. Zuul as packaged in spring cloud will automatically expose every service using its name. So if you register a service called users in Eureka, Zuul will automatically create a route /users forwarding to the instances by default. That will only allow simple url structures but should solve your problem.
Please see the official documentation for details:
By convention, a service with the ID "users", will receive requests from the proxy located at /users (with the prefix stripped). The proxy uses Ribbon to locate an instance to forward to via discovery, and all requests are executed in a hystrix command, …
I'm actually editing a blog post about this exact topic (Routing and Filtering using Spring Cloud Zuul Server) but the source code has been available and working for some time now. Feel free to use it as a reference:
https://bitbucket.org/asimio/zuulserver
https://bitbucket.org/asimio/discoveryserver (in case routes are configured with serviceIds)
https://bitbucket.org/asimio/demo-config-properties/src (Zuul-Server-refreshable.yml where routes are dynamically updated).
Look at the refreshable Spring profile settings. This Zuul setup works with both, hard-coding routes url or discovered using Eureka.
It also acting as a Spring Cloud Config client so that routes could be dynamically updated via Git, which is also covered in another blog post: Refreshable Configuration using Spring Cloud Config Server, Spring Cloud Bus, RabbitMQ and Git.
I have spring web application (not spring boot) running in AWS. I am trying to create centralized configuration server. How to refresh the spring-cloud-client after the changing the properties? As per tutorial
Actuator endpoint by sending an empty HTTP POST to the client’s refresh endpoint, http://localhost:8080/refresh, and then confirm it worked by reviewing the http://localhost:8080/message endpoint.
But my aws Ec2 instances are behind the loadbalancer so i can't invoke the client url. I didn't understand the netflix Eureka and Ribbon much but it seems like adding another level of load balancer in the client side. I don't like this approach. Just to change a property i don't want to make the existing project unnecessarily complex. Is there any other way? or Am I misunderstood Eureka/Ribbon usage?
I have looked at the spring-cloud-config-client-without-spring-boot, spring-cloud-config-client-without-auto-configuration none of them have answer. First thread was answered in 2015. Wondering is there any update?
To get the configuration properties from a config server. You can do a http request. Example:
From the documentation we can see:
/{application}/{profile}[/{label}]
/{application}-{profile}.yml <- example
/{label}/{application}-{profile}.yml
/{application}-{profile}.properties
/{label}/{application}-{profile}.properties
So if you would do a request to http://localhost:8080/applicationName-activeProfile.yml you would receive the properties in .yml format for the application with that name and active profile. Spring boot config clients would automatically provide these values but you will have to provide em manually.
You don't need Eureka/Ribbon for this to work, it's a separate component.
More info: http://cloud.spring.io/spring-cloud-static/spring-cloud.html#_spring_cloud_config
Maybe you could even use spring-cloud-config but I'm not sure what extra configuration is needed without spring-boot.
https://cloud.spring.io/spring-cloud-config/