Manage and monitor the cache instance in the INFINISPAN MEMCACACHED Server framework
Manage and monitor the cache instance in the INFINISPAN MEMCACACHED Server framework
preface:
INFINISPAN is a scalable open source data grid platform that can provide high -performance and reliable cache solutions.MEMCACHED is an open source high -performance, distributed memory object cache system.INFINISPAN can integrated with Memcached. The MEMCACACHED protocol compatibility is provided through the Infinispan Memcached Server framework, which enables the existing MEMCACHED client application to seamlessly integrated with Infinispan.This article will introduce how to manage and monitor cache instances in the Infinispan Memcached Server framework.
1. Introduction dependencies:
First of all, in your Java project, you need to introduce Infinispan and Memcached -related dependence.You can manage the dependency through Maven.
<dependency>
<groupId>org.infinispan</groupId>
<artifactId>infinispan-core</artifactId>
<version>10.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.infinispan</groupId>
<artifactId>infinispan-embedded</artifactId>
<version>10.0.0.Final</version>
</dependency>
<dependency>
<groupId>org.infinispan</groupId>
<artifactId>infinispan-server-hotrod</artifactId>
<version>10.0.0.Final</version>
</dependency>
2. Create and configure cache instance:
In INFINISPAN, you can manage and operate cache instances through the `EmbeddedCacheManager` interface.First of all, you need to create an object of `EmbeddedCacheManager` and configure it as needed.
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.manager.DefaultCacheManager;
import org.infinispan.manager.EmbeddedCacheManager;
public class CacheManagerExample {
public static void main(String[] args) {
ConfigurationBuilder builder = new ConfigurationBuilder();
Builder.clustering (). cachemode (cachemode.dist_sync); // Set the cache mode as a distributed synchronization mode
EmbeddedCacheManager cacheManager = New DefaultCacheManager (builder.build ()); // Create a cache manager
cacheManager.start (); // Start the cache manager
// ...
}
}
3. Operation cache instance:
After creating the `EmbeddedCacheManager` object, we can use the methods provided to create, obtain, operate, and delete cache instances.
import org.infinispan.Cache;
public class CacheExample {
public static void main(String[] args) {
EmbeddedCacheManager cacheManager = ... // Through the above method, obtain a cache manager
Cache <string, String> Cache = Cachemanager.getCache ("ExampleCache"); // Get or create a cache instance
cache.put ("key1", "value1"); // store data to the cache instance
String value = cache.get ("key1"); // Get data from the cache instance
cache.remove ("key1"); // Delete data from the cache instance
// ...
}
}
4. Monitor the cache instance:
INFINISPAN provides multiple ways to monitor cache instances, such as JMX (Java Management Extension), REST API, console, etc.Below is an example of using JMX monitoring cache instance:
import org.infinispan.jmx.CacheJmxRegistration;
public class CacheMonitoringExample {
public static void main(String[] args) throws Exception {
EmbeddedCacheManager cacheManager = ... // Through the above method, obtain a cache manager
Cache <string, String> Cache = Cachemanager.getCache ("ExampleCache"); // Get the cache instance
Cachejmxregification jmxregification = New Cachejmxregization (cache, cacheManager.getObjectName ()); // Register cache examples to JMX
jmxRegistration.start();
// ...
// Monitor the attribute of the cache instance
String cacheName = cache.getName();
long numberOfEntries = cache.getAdvancedCache().getDataContainer().size();
long numberOfBytesInMemory = cache.getAdvancedCache().getStats().getMemorySizeInBytes();
// ...
jmxRegistration.stop();
}
}
Conclusion:
This article introduces how to manage and monitor cache instances in the Infinispan Memcached Server framework.Through INFINISPAN API, you can create, obtain, operate, and delete cache instances, and use JMX and other methods to monitor the status and attributes of the cache instance.I hope this article will help you when you use Infinispan Memcached Server framework.
