eventrouter | simple introspective kubernetes service that forwards events
kandi X-RAY | eventrouter Summary
kandi X-RAY | eventrouter Summary
This repository contains a simple event router for the Kubernetes project. The event router serves as an active watcher of event resource in the kubernetes system, which takes those events and pushes them to a user specified sink. This is useful for a number of different purposes, but most notably long term behavioral analysis of your workloads running on your kubernetes cluster.
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QUESTION
I'm implementing an outbox pattern using the debezium postgres connector, building up upon the official documentation: https://debezium.io/documentation/reference/stable/transformations/outbox-event-router.html.
Everything is working quite fine - except that the property "transforms.outbox.table.expand.json.payload: true" is not working.
Using the following database record (SQL instert):
...ANSWER
Answered 2021-Dec-14 at 17:37I ran into the same issue here and found a solution using a different value converter. For example my previous output into kafka looked like this:
QUESTION
I have an outbox postgresql table and debezium connector in kafka connect that creates kafka messages based on the added rows to the table.
The problem I am facing is with the message format. This is the created message value:
...ANSWER
Answered 2021-Jan-12 at 12:31It looks like you're using org.apache.kafka.connect.json.JsonConverter
with schemas.enable=true
for your value converter. When you do this it embeds the schema alongside the payload in the message.
If you set value.converter.schemas.enable=false
you should get just the payload in your message.
Ref: Kafka Connect: Converters and Serialization Explained — JSON and Schemas
QUESTION
I have installed helm
on a GKE Cluster
. Installation is fine
ANSWER
Answered 2020-Jul-08 at 17:02Use helm hub to search for any chart such as nginx and you can use the command given there to install the chart. Please note
Not all charts are available in
stable
repoYou need to update local helm repo to be able to install the chart.
helm repo update
helm install stable/nginx-ingress
QUESTION
I am attempting to register a ClickListener to a Button. I am using Vaadin 8. This listener should be implemented using Proxy.
...ANSWER
Answered 2020-Jun-18 at 23:17You are returning null
for any method invocation on the proxy. In the stack trace, you can see that Vaadin calls the hashCode
method which returns null
according to your implementation. From the InvocationHandler
Javadocs, the invoke
method returns:
the value to return from the method invocation on the proxy instance. If the declared return type of the interface method is a primitive type, then the value returned by this method must be an instance of the corresponding primitive wrapper class; otherwise, it must be a type assignable to the declared return type. If the value returned by this method is null and the interface method's return type is primitive, then a NullPointerException will be thrown by the method invocation on the proxy instance. If the value returned by this method is otherwise not compatible with the interface method's declared return type as described above, a ClassCastException will be thrown by the method invocation on the proxy instance.
So for example, you'll need a reference to the target object, invoke the method from that, and return the result. There's a good tutorial at https://www.baeldung.com/java-dynamic-proxies
QUESTION
Below are my MongoDB config in /etc/kafka/connect-mongodb-source.properties
...ANSWER
Answered 2020-Jan-10 at 08:37QUESTION
package com.vaadin.ui.view;
public class AddConsumerView extends FormLayout{
private ConsumerUI consumerUI;
@Autowired
private ConsumerServiceInterface consumerServiceInterface;
//horizontal layout for the id's
private HorizontalLayout consumerIDLayout = new HorizontalLayout();
private TextField consumer_id = new TextField("Consumer Id");
private TextField household_id = new TextField("Household Id");
private TextField legal_hold = new TextField("Legal Hold");
private TextField deceased_fg = new TextField("Deceased");
private DateTimeField deceased_dt = new DateTimeField("Deceased DateTime");
//Horizontal layout for the INS
private HorizontalLayout consumerINSLayout = new HorizontalLayout();
private TextField ins_pqid = new TextField("Ins PQID");
private TextField ins_rid = new TextField("Ins RID");
private TextField ins_efid = new TextField("Ins EFID");
private DateTimeField ins_tmstmp = new DateTimeField("Ins Date time");
// Horizontal layout for the UPD
private HorizontalLayout consumerUPDLayout = new HorizontalLayout();
private TextField upd_pqid = new TextField("Upd PQID");
private TextField upd_rid= new TextField("Upd RID");
private TextField upd_efid = new TextField("Upd EFID");
private DateTimeField upd_tmstmp = new DateTimeField("Upd Date time");
private Consumer consumerData = new Consumer();
//Buttons
private Button saveConsumerButton = new Button("save");
//binding the data to the field
private Binder consumerBinder = new Binder<>(Consumer.class);
public AddConsumerView(ConsumerUI consumerUI) {
this.consumerUI = consumerUI;
consumerIDLayout.addComponents(consumer_id, household_id, legal_hold, deceased_dt,deceased_fg);
consumerINSLayout.addComponents(ins_pqid, ins_rid, ins_efid, ins_tmstmp);
consumerUPDLayout.addComponents(upd_pqid,upd_rid, upd_efid, upd_tmstmp);
VerticalLayout vertical = new VerticalLayout();
vertical.addComponents(consumerIDLayout, consumerINSLayout,
consumerUPDLayout,saveConsumerButton);
//addComponent(vertical);
bindFields();
consumerBinder.setBean(new Consumer());
saveConsumerButton.setStyleName("primary");
saveConsumerButton.addClickListener(e->saveConsumer());
addComponents(vertical);
}
public void saveConsumer() {
//consumerBinder.bindInstanceFields(this);
System.out.println(consumerBinder.getBean().toString());
consumerServiceInterface.addConsumer(consumerBinder.getBean());
}
public void bindFields() {
consumerBinder.forField(consumer_id)
.withConverter(new StringToLongConverter("Must be a number"))
.bind(Consumer::getConsumer_id,Consumer::setConsumer_id);
consumerBinder.forField(legal_hold)
.bind(Consumer::getLegal_hold, Consumer::setLegal_hold);
consumerBinder.forField(deceased_fg)
.bind(Consumer::getDeceased_fg, Consumer::setDeceased_fg);
consumerBinder.forField(household_id)
.withConverter(new StringToLongConverter("Must be a number"))
.bind(Consumer::getHousehold_id,Consumer::setHousehold_id);
consumerBinder.forField(ins_efid)
.withConverter(new StringToLongConverter("Must be a number"))
.bind(Consumer::getIns_efid,Consumer::setIns_efid);
consumerBinder.forField(ins_pqid)
.withConverter(new StringToLongConverter("Must be a number"))
.bind(Consumer::getIns_pqid,Consumer::setIns_pqid);
consumerBinder.forField(ins_rid)
.withConverter(new StringToLongConverter("Must be a number"))
.bind(Consumer::getIns_rid,Consumer::setIns_rid);
consumerBinder.forField(upd_efid)
.withConverter(new StringToLongConverter("Must be a number"))
.bind(Consumer::getUpd_efid,Consumer::setUpd_efid);
consumerBinder.forField(upd_pqid)
.withConverter(new StringToLongConverter("Must be a number"))
.bind(Consumer::getUpd_pqid,Consumer::setUpd_pqid);
consumerBinder.forField(upd_rid)
.withConverter(new StringToLongConverter("Must be a number"))
.bind(Consumer::getUpd_rid,Consumer::setUpd_rid);
consumerBinder.forField(upd_tmstmp)
.withConverter(new StringTimestampConvertor())
.bind(Consumer::getUpd_tmstmp, Consumer::setUpd_tmstmp);
consumerBinder.forField(ins_tmstmp)
.withConverter(new StringTimestampConvertor())
.bind(Consumer::getIns_tmstmp, Consumer::setIns_tmstmp);
consumerBinder.forField(deceased_dt)
.withConverter(new StringTimestampConvertor())
.bind(Consumer::getDeceased_dt, Consumer::setDeceased_dt);
consumerBinder.forField(upd_tmstmp)
.withConverter(new StringTimestampConvertor())
.bind(Consumer::getUpd_tmstmp, Consumer::setUpd_tmstmp);
}
}
...ANSWER
Answered 2020-Jan-06 at 10:41Edit:
Could you verify that your instance of ConsumerServiceInterface
is not null? You are not using a @Route
on the view, so how you are using this view in an app? If it happens via constructor, then Spring is not autowiring a field. How does autowiring work in Spring
Based on your previous question here: How to enter a timestamp in Vaadin 8 I would assume that you are getting NPE at
Result rs = Result.ok(Timestamp.valueOf(value));
Which is expected, if passed value
is null JavaDocs: Timestamp valueOf
. You should add a proper null check there and based on that proceed further
Also, why are you returning for any Timestamp
a null
LocalDateTime
?
You should do instead something like this Datamodel Conversion:
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