| tag | a96907098403f98dc16c5765f1a72819199bdf93 | |
|---|---|---|
| tagger | Zike Yang <zike@apache.org> | Fri Aug 09 18:05:40 2024 +0800 |
| object | e44bd0481cc8b3b407c257a3411a97d48bb29844 |
Release v0.13.1
| commit | e44bd0481cc8b3b407c257a3411a97d48bb29844 | [log] [tgz] |
|---|---|---|
| author | Gaylor Bosson <gb@taurusgroup.ch> | Tue Jul 30 14:25:42 2024 +0200 |
| committer | Zike Yang <zike@apache.org> | Wed Jul 31 16:28:06 2024 +0800 |
| tree | 19816fe71d679112b091d794f5d2d4b17a5182ef | |
| parent | 53fc9381499a0f8d88c97b10ad4b4670539cbc4d [diff] |
[fix] Avoid a data race when flushing with load (#1261) Fixes #1258 ### Motivation While flushing, the data channel is switched if a new allocated one which can cause the loss of messages because the length can be zero which would stop the procedure and at the same time a new message can be sent to the channel. ### Modifications Instead of allocating a new channel, it empties the existing one up to the length of the buffer of the channel before proceeding with the flush. (cherry picked from commit 8dd4ed19b98ecf9287cbcfc20e2de9a12b197e3f)
A Go client library for Apache Pulsar. For the supported Pulsar features, see Client Feature Matrix.
This project is a pure-Go client library for Pulsar that does not depend on the C++ Pulsar library.
Once feature parity and stability are reached, this will supersede the current CGo-based library.
Note:
While this library should work with Golang versions as early as 1.16, any bugs specific to versions earlier than 1.18 may not be fixed.
Check the Projects page at https://github.com/apache/pulsar-client-go/projects for tracking the status and the progress.
Import the client library:
import "github.com/apache/pulsar-client-go/pulsar"
Create a Producer:
client, err := pulsar.NewClient(pulsar.ClientOptions{
URL: "pulsar://localhost:6650",
})
defer client.Close()
producer, err := client.CreateProducer(pulsar.ProducerOptions{
Topic: "my-topic",
})
_, err = producer.Send(context.Background(), &pulsar.ProducerMessage{
Payload: []byte("hello"),
})
defer producer.Close()
if err != nil {
fmt.Println("Failed to publish message", err)
} else {
fmt.Println("Published message")
}
Create a Consumer:
client, err := pulsar.NewClient(pulsar.ClientOptions{
URL: "pulsar://localhost:6650",
})
defer client.Close()
consumer, err := client.Subscribe(pulsar.ConsumerOptions{
Topic: "my-topic",
SubscriptionName: "my-sub",
Type: pulsar.Shared,
})
defer consumer.Close()
msg, err := consumer.Receive(context.Background())
if err != nil {
log.Fatal(err)
}
fmt.Printf("Received message msgId: %#v -- content: '%s'\n",
msg.ID(), string(msg.Payload()))
Create a Reader:
client, err := pulsar.NewClient(pulsar.ClientOptions{URL: "pulsar://localhost:6650"})
if err != nil {
log.Fatal(err)
}
defer client.Close()
reader, err := client.CreateReader(pulsar.ReaderOptions{
Topic: "topic-1",
StartMessageID: pulsar.EarliestMessageID(),
})
if err != nil {
log.Fatal(err)
}
defer reader.Close()
for reader.HasNext() {
msg, err := reader.Next(context.Background())
if err != nil {
log.Fatal(err)
}
fmt.Printf("Received message msgId: %#v -- content: '%s'\n",
msg.ID(), string(msg.Payload()))
}
Build the sources:
make build
Run the tests:
make test
Run the tests with specific versions of GOLANG and PULSAR:
make test GO_VERSION=1.20 PULSAR_VERSION=2.10.0
Contributions are welcomed and greatly appreciated. See CONTRIBUTING.md for details on submitting patches and the contribution workflow.
If your contribution adds Pulsar features for Go clients, you need to update both the Pulsar docs and the Client Feature Matrix. See Contribution Guide for more details.
| Name | Scope | |||
|---|---|---|---|---|
| users@pulsar.apache.org | User-related discussions | Subscribe | Unsubscribe | Archives |
| dev@pulsar.apache.org | Development-related discussions | Subscribe | Unsubscribe | Archives |
Pulsar slack channel #dev-go at https://apache-pulsar.slack.com/
You can self-register at https://apache-pulsar.herokuapp.com/
Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0
If you've upgraded from a previous version of this library, you may run into an ‘ambiguous import’ error when building.
github.com/apache/pulsar-client-go/oauth2: ambiguous import: found package github.com/apache/pulsar-client-go/oauth2 in multiple modules
The fix for this is to make sure you don't have any references in your go.mod file to the old oauth2 module path. So remove any lines similar to the following, and then run go mod tidy.
github.com/apache/pulsar-client-go/oauth2 v0.0.0-20220630195735-e95cf0633348 // indirect