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kandi X-RAY | vert.x Summary
kandi X-RAY | vert.x Summary
Red Hat OpenShift Application Runtimes. An understanding of Java application development and familiarity with OpenShift and Linux Containers.
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Top functions reviewed by kandi - BETA
- Starts the server .
- Update an item .
- Sends a greeting request .
- Adds an item to the store .
- Create a new item in the database
- Update an item .
- Sends a message to the client
- Sets up the configuration .
- Sends an error to the response
- Initializes a database .
vert.x Key Features
vert.x Examples and Code Snippets
Community Discussions
Trending Discussions on vert.x
QUESTION
Our problem is that the internal property kafka.bootstrap.servers will not be overwritten by kafka:9092. Our container still tries to access localhost:9092.
We have set in our docker-compose.yml file for the environment of each microservice to: environment: - kafka.bootstrap.servers=kafka:9092 and also the same in the properties of each MS
Is there any way to overwrite this property?
edit: important parts of our docker-compose.yml file:
...ANSWER
Answered 2021-Jun-02 at 12:27You need KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:9092 since you cannot advertise localhost to other containers in the same network. As the error says, the consumer container is trying to connect with itself, not the Kafka container.
However, you'll need to verify the override flags in the command actually set the property correctly
QUESTION
First off: I'm not used to Quarkus or Hibernate (I'm pretty much all .net)
Problem:
My service receives a list of ~10k (Would guess thats the most common number). This comes via a resource endpoint, and it takes +10s for it to complete, Far to long. And the service is unresponsive.
...ANSWER
Answered 2021-May-20 at 14:23Hibernate keeps all entities that you persist in the persistence context so you will acquire more and more memory which might lead to bad performance. If you do not need these entities anymore as it seems, you can flush and clear them out in e.g. batches of 50 items.
QUESTION
I'm trying to implement a logging filter to log the request and response to the API endpoints of my Quarkus application. I'm using Quarkus 1.13.3.Final and quarkus-resteasy-reactive. I have a problem trying to log the request body when calling a non blocking end point. This is the code I'm using to log the request:
...ANSWER
Answered 2021-May-17 at 08:34You will need to force RESTEasy Reactive all JAX-RS methods on a worker thread instead of the event loop.
To do that, just change your code to:
QUESTION
I'm using Vert.x 4.0.3 with Groovy 3.0.7 flavour -> vertx-lang-groovy. It has an extension module containing a method:
ANSWER
Answered 2021-May-13 at 12:34json.id is only valid if there is a getId() method, an id field, or something in place to intercept property access to instances of this class (propertyMissing(String), getProperty(String), etc.). The getAt(JsonObject, String) method would not by default be involved in evaluating json.id.
QUESTION
I'm using Quarkus 1.13.3.FINAL and I'm facing issues on my reactive datasource health check when deploying my application.
I have both JDBC and reactive datasources being used. Here's how they're set up:
ANSWER
Answered 2021-May-12 at 23:51I was facing this same issue(with exactly same stack). Found some clues on Zulip and the official documentation. All it took was adding the trust-all config and ssl mode on reactive database url:
QUESTION
I am trying to deploy hono with enmasse. For this, I already installed enmasse and created address spaces and addresses following this repository.
As described in hono-doc on artifacthub. First I created a secret.
my_secret.yaml
...ANSWER
Answered 2021-Apr-29 at 09:00You cannot specify extra secret mounts at the adapters level. You need to specify the extraSecretMounts property for each adapter individually, e.g. for the HTTP and MQTT adapter:
QUESTION
I have a Quarkus App that reads a file and sends requests (to another Quarkus microservice). At the moment, I send one request for each line of the file. But the process takes so long because I have thousand of lines.
I've read about vert.x and I've got an asynchronous request to the API, thanks to this link:
https://quarkus.io/blog/mutiny-concurrent-uni/
But my problem is that I have to save the response of the requests to an Array and at the end, save the file. So the problem is that the process finishes and the result of the file is empty (because the request are async and they are invoking in that moment)
This is my code to make async requests:
...ANSWER
Answered 2021-Apr-10 at 08:04Instead of subscribe, use await().atMost(Duration.ofSeconds(...)), or await().indefinitely() (not recommended as it may block forever). Both will return the HTTPResponse.
Now, without much context, it's hard to understand how your method is used. In general, we don't use await(), because the call is also asynchronous and so expect to receive a Uni.
QUESTION
my vertx (4.0.2) application written in Java (11) uses some data-heavy verticles that cause latency spikes because the eventloop gets blocked by them for a moment. For this reason i wanted to deploy these verticles as worker verticles, so that the eventloop and other verticles are no longer blocked.
Unfortunately my application crashes now, because the event handling inside the verticle is executed by multiple threads concurrently ;(
If i understand the vertx documentation correctly, this should not happen:
Worker verticle instances are never executed concurrently by Vert.x by more than one thread, but can executed by different threads at different times.
I was able to reproduce the issue with a minimal example:
...ANSWER
Answered 2021-Apr-09 at 07:03vertx 4.0.2 seems to be the problem in your case. using vertx 4.0.3 and following code:
QUESTION
We want to change the default session timeout in Vert.x. After searching in the documentation I've found that sessions use this variable to define timeout value:
...ANSWER
Answered 2021-Apr-09 at 00:14long TIMEOUT_IN_MS = 3600000L;
router.route()
.handler(SessionHandler.create(store).setSessionTimeout(TIMEOUT_IN_MS));
QUESTION
I have a pipeline of asynchronous operations that takes a long time to complete, and I would like to let the Uni continue with a placeholder item if the pipeline has not produced an item before a deadline, like this:
...ANSWER
Answered 2021-Apr-02 at 07:38The cancellation of the pipeline is to be expected, since ifNoItem().after(duration) triggers a TimeoutException. So this exception is propagated as a failure, and the upstream at this particular point is cancelled, which is in line with reactive streams semantics.
recoverWith is a failure recovery operator, and whatever is down the line after this operator is subscribed to it.
You may want to have a look at recoverWithUni, where you would provide a Uni as a recovery, and that Uni would capture the rest of the pipeline that may be re-subscribed to after this particular point of timeout failure.
Hope that helps.
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Install vert.x
You can use vert.x like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the vert.x component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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