redisson shutdowntimeout

Redisson Shutdown Timeout

Redisson is a popular Java client for Redis, a high-performance in-memory data store. It provides an easy-to-use interface to interact with Redis and supports various data structures and features.

One important aspect of using Redisson is managing the shutdown process. When shutting down, Redisson needs to release the resources it has acquired, close connections to Redis, and clean up any temporary data. The shutdowntimeout configuration parameter controls the maximum time the shutdown process waits for tasks to complete before forcing them to stop.

Understanding Shutdown Timeout

By default, Redisson uses a timeout of 0 seconds for shutting down. This means that it will wait indefinitely for tasks to complete before stopping them forcefully. However, in some cases, it might be necessary to set a timeout to ensure a timely shutdown.

The shutdowntimeout parameter accepts a value in milliseconds and defines the maximum time to wait for tasks to complete during shutdown. If the timeout is reached, Redisson stops the tasks forcefully and proceeds with the shutdown process.

Code Example

To demonstrate the usage of shutdowntimeout, let's consider a simple Java application that uses Redisson to manage a distributed lock. The application acquires a lock, performs some tasks, and then releases the lock. We will set a shutdown timeout of 10 seconds to ensure the tasks complete within a reasonable time before shutting down.

First, let's include the Redisson dependency in our Maven project:

<dependency>
    <groupId>org.redisson</groupId>
    <artifactId>redisson</artifactId>
    <version>3.16.1</version>
</dependency>

Now, let's see how we can set the shutdown timeout using Redisson:

import org.redisson.Redisson;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.redisson.config.Config;

public class RedissonShutdownExample {

    public static void main(String[] args) {
        // Configure Redisson
        Config config = new Config();
        config.useSingleServer()
                .setAddress("redis://localhost:6379");

        // Create Redisson client
        RedissonClient redisson = Redisson.create(config);

        // Acquire lock
        RLock lock = redisson.getLock("myLock");
        lock.lock();

        // Perform tasks
        // ...

        // Release lock
        lock.unlock();

        // Shutdown Redisson
        redisson.shutdown(10_000);
    }
}

In the code above, we create a Redisson client using the provided Redis server address. We acquire a distributed lock named "myLock" and perform some tasks. Finally, we release the lock and shutdown Redisson with a timeout of 10 seconds.

Conclusion

Managing the shutdown process is an important consideration when using Redisson. The shutdowntimeout configuration parameter allows you to control the maximum time to wait for tasks to complete during shutdown. By setting an appropriate timeout, you can ensure a timely shutdown without waiting indefinitely.

Remember to choose a timeout value that gives enough time for your tasks to complete, but also allows for a reasonable shutdown duration. It is always a good practice to clean up resources properly and release locks before shutting down Redisson.

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关系图

我们可以使用 Mermaid语法中的erDiagram标识关系图。下面的关系图描述了Redisson在应用程序和Redis之间的关系：

erDiagram
    Application -- Redis : Uses
    Redis -- Redisson : Client

以上关系图表示应用程序使用Redis，而Redisson是应用程序和Redis之间的客户端。

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References:

• Redisson documentation: [
• Redisson GitHub repository: [