Carsten Lohmann

Notable feature: Quarkus 2.11 includes an update to vert.x 4.3, supporting usage of Kafka client 3.0.

When developing the fix for #2660, load-tests have been done with many concurrent device requests for different tenants. The first such request for a tenant causes tenant-specific AMQP links from...

MongoDB Device Registry: IllegalStateException on close

1

When the MongoDB device registry component is shut down, there may be exceptions like this in the log: ``` WARN org.eclipse.hono.tracing.TracingHelper An unexpected error occurred! java.lang.IllegalStateException: state should be: server...

Investigate slower liveness check request processing in Hono 2.0

3

Compared with previous Hono versions, HTTP requests on the `/liveness` endpoint of Hono components seem to take longer on Hono 2.0 components. This means the Kubernetes liveness probes run into...

Find ways to reduce cache operations when command consumers get (temporarily) disconnected

10

When an AMQP/MQTT device, listening for command messages, gets disconnected from the protocol adapter, the association between device id and protocol adapter instance id gets removed in the ~~device connection~~...

Add ApplicationClient addOnClientReadyHandler()

4

This is especially needed for the `KafkaApplicationClient`, letting a given handler be invoked when the Kafka producer is ready. Also introduce a lifecycleStatus in `AbstractServiceClient`, preventing successive start() invocations.

Protocol adapter shutdown: Cannot perform [send] operation after producer has been closed

2

When using Kafka-based messaging: On protocol adapter shutdown, there may be errors like these getting logged: ``` WARN org.eclipse.hono.tracing.TracingHelper An unexpected error occurred! [logged on span [8df2f9a8fbb2799c:33ca4d94d9776346:8ceb03ecb09127ef:1 - forward Event]]...

Improve handling of adapter shutdown in case of many devices subscribed for commands

10

The given scenario is that of an AMQP or MQTT adapter being shut down while there are a lot of devices still connected and subscribed for commands. The adapter will...

Integration tests got stuck

1

Today there was an integration test run that got stuck. Last log output: ``` 2022-06-28T09:58:49.2283580Z 09:58:49.222 [main] INFO o.e.h.tests.mqtt.TelemetryMqttQoS0IT - running testUploadMessagesViaGateway(VertxTestContext) 2022-06-28T09:58:49.2361887Z 09:58:49.228 [main] INFO o.e.h.tests.IntegrationTestSupport - Configured to...

Add explicit support for request/response communication pattern (device to application)

14

This issue is about a use case where a device sends a request message and expects a corresponding response from a northbound application. Such a scenario can already be implemented...