[英]How to enable mongo connection pool monitoring with spring-data-mongodb in XML?
I am using spring-data-mongodb 1.10.12 with mongo 3.6.4.我正在使用 spring-data-mongodb 1.10.12 和 mongo 3.6.4。 I recently upgraded from a lower version of mongo, and now my mongo connection pool monitoring is broken because there is no ConnectionPoolStatisticsMBean registered.我最近从一个较低版本的mongo升级,现在我的mongo连接池监控坏了,因为没有注册ConnectionPoolStatisticsMBean。 According to the documentation for that version of mongo "JMX connection pool monitoring is disabled by default. To enable it add a com.mongodb.management.JMXConnectionPoolListener instance via MongoClientOptions"根据该版本 mongo 的文档“默认情况下禁用 JMX 连接池监视。要启用它,请通过 MongoClientOptions 添加 com.mongodb.management.JMXConnectionPoolListener 实例”
However, in the xml schema for spring-data-mongo, the clientOptionsType does not allow setting that value, unless I am missing something.但是,在 spring-data-mongo 的 xml 模式中,clientOptionsType 不允许设置该值,除非我遗漏了什么。 Is there any way, with spring-data-mongodb, to turn on the connection pool monitoring through xml?有没有什么办法,用spring-data-mongodb,通过xml开启连接池监控?
Here is my xml for the mongo beans这是我的 mongo bean xml
<mongo:mongo-client id="mongo"
host="${mongo.hostname:#{null}}"
replica-set="${mongo.replica.set:#{null}}"
port="${mongo.port}"
credentials="'${mongo.username}:${mongo.password}@${mongo.auth.db.name}?uri.authMechanism=${mongo.auth.mechanism:SCRAM-SHA-1}'"
>
<mongo:client-options connections-per-host="${mongo.connections-per-host:40}"
threads-allowed-to-block-for-connection-multiplier="${mongo.threads-blocked-per-connection:3}"
connect-timeout="${mongo.connection-timeout:10000}"
max-wait-time="${mongo.maxWaitTime:120000}"
socket-keep-alive="${mongo.socketKeepAlive:true}"
socket-timeout="${mongo.socketTimeout:0}"
read-preference="${mongo.read.preference:PRIMARY_PREFERRED}"
write-concern="${mongo.write.concern:ACKNOWLEDGED}"
/>
</mongo:mongo-client>
and my pom dependencies和我的 pom 依赖项
<properties>
<mongo-version>3.6.4</mongo-version>
<spring-data-version>1.10.12.RELEASE</spring-data-version>
</properties>
<dependencies>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>${mongo-version}</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-mongodb</artifactId>
<version>${spring-data-version}</version>
</dependency>
</dependencies>
It is true that there is no way, through the spring-data-mongodb schema, to add a connection pool listener, but the folks that maintain the repo suggested a solution which is to use a BeanPostProcessor to alter the MongoClientOptions before they are passed to the mongo client like so确实,无法通过 spring-data-mongodb 模式添加连接池侦听器,但是维护 repo 的人提出了一个解决方案,即使用 BeanPostProcessor 来更改 MongoClientOptions,然后再将它们传递给mongo 客户端是这样的
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
if (bean instanceof MongoClientOptions) {
return MongoClientOptions.builder((MongoClientOptions) bean)
.addConnectionPoolListener(new JMXConnectionPoolListener()).build();
}
return bean;
}
Doing so successfully registered ConnectionPoolStatisticsMBeans for me这样做成功地为我注册了 ConnectionPoolStatisticsMBeans
I tackled the very same challenge.我解决了同样的挑战。 In my case, originally the Spring configuration was done using XML.就我而言,最初 Spring 配置是使用 XML 完成的。 I have managed to combine the XML configuration with Java configuration, because the Java configuration gives you more flexibility to configure the MongoClientOptions
:我已经设法将 XML 配置与 Java 配置结合起来,因为Java 配置让您可以更灵活地配置MongoClientOptions
:
@Configuration
public class MongoClientWrapper {
@Bean
public MongoClient mongo()
{
//credentials:
MongoCredential credential = MongoCredential.createCredential("user", "auth-db", "password".toCharArray());
MongoClientOptions options = MongoClientOptions.builder()
.addConnectionPoolListener(new MyConnectionPoolListener())
.build();
return new MongoClient(
new ServerAddress("localhost", 27017), //replica-set
Arrays.asList(credential)
,options
);
}
@Bean
public MongoTemplate mongoTemplate()
{
return new MongoTemplate(mongo(), database);
}
...
}
Hope this helps someone...希望这可以帮助某人...
In my project, adding the BeanPostProcessor was useless, because the MongoClientOptions Bean was not automatically instantiate.在我的项目中,添加 BeanPostProcessor 是没有用的,因为 MongoClientOptions Bean 没有自动实例化。 I had to create Bean manually to add a connection pool listener in my environment:我必须手动创建 Bean 才能在我的环境中添加连接池侦听器:
@Bean public MongoClientOptions myMongoClientOptions() {
return MongoClientOptions.builder().addConnectionPoolListener(new JMXConnectionPoolListener()).build();
}
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