Hazelcast：避免在 运行 个集群时发出警告
Hazelcast: Avoid Warning When Running a Cluster
我有这个 Spring-Boot 1.5.4 项目需要一个带有 Hazelcast 的集群数据库缓存。所以我所做的更改是：
pom.xml:
<dependency>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast</artifactId>
</dependency>
<dependency>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast-eureka-one</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>org.mybatis.caches</groupId>
<artifactId>mybatis-hazelcast</artifactId>
<version>1.1.1</version>
</dependency>
豆子：
@Bean
public Config hazelcastConfig(EurekaClient eurekaClient) {
EurekaOneDiscoveryStrategyFactory.setEurekaClient(eurekaClient);
Config config = new Config();
config.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
return config;
}
mapper.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.sjngm.blah.dao.mapper.AttributeMapper">
<resultMap type="attribute" id="attributeResult">
...
</resultMap>
<cache type="org.mybatis.caches.hazelcast.HazelcastCache" eviction="LRU" size="100000" flushInterval="600000" />
...
我没有 hazelcast.xml 或 eureka-client.properties。
开始正常，但记录如下：
2019-11-13 09:51:48,003 DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] [localhost-startStop-1] Returning cached instance of singleton bean 'org.springframework.transaction.config.internalTransactionAdvisor'
2019-11-13 09:51:48,005 DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] [localhost-startStop-1] Finished creating instance of bean 'hazelcastConfig'
2019-11-13 09:51:48,005 DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] [localhost-startStop-1] Autowiring by type from bean name 'hazelcastInstance' via factory method to bean named 'hazelcastConfig'
2019-11-13 09:51:48,066 INFO [com.hazelcast.instance.DefaultAddressPicker] [localhost-startStop-1] [LOCAL] [dev] [3.7.7] Prefer IPv4 stack is true.
2019-11-13 09:51:48,124 INFO [com.hazelcast.instance.DefaultAddressPicker] [localhost-startStop-1] [LOCAL] [dev] [3.7.7] Picked [10.20.20.86]:5701, using socket ServerSocket[addr=/0:0:0:0:0:0:0:0,localport=5701], bind any local is true
2019-11-13 09:51:48,142 INFO [com.hazelcast.system] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Hazelcast 3.7.7 (20170404 - e3c56ea) starting at [10.20.20.86]:5701
2019-11-13 09:51:48,142 INFO [com.hazelcast.system] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
2019-11-13 09:51:48,142 INFO [com.hazelcast.system] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Configured Hazelcast Serialization version : 1
2019-11-13 09:51:48,341 INFO [com.hazelcast.spi.impl.operationservice.impl.BackpressureRegulator] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Backpressure is disabled
2019-11-13 09:51:49,006 INFO [com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Starting 4 partition threads
2019-11-13 09:51:49,008 INFO [com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Starting 3 generic threads (1 dedicated for priority tasks)
2019-11-13 09:51:49,013 INFO [com.hazelcast.core.LifecycleService] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] [10.20.20.86]:5701 is STARTING
2019-11-13 09:51:49,014 INFO [com.hazelcast.nio.tcp.nonblocking.NonBlockingIOThreadingModel] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] TcpIpConnectionManager configured with Non Blocking IO-threading model: 3 input threads and 3 output threads
2019-11-13 09:51:49,031 WARN [com.hazelcast.instance.Node] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] No join method is enabled! Starting standalone.
2019-11-13 09:51:49,063 INFO [com.hazelcast.core.LifecycleService] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] [10.20.20.86]:5701 is STARTED
2019-11-13 09:51:49,269 DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] [localhost-startStop-1] Eagerly caching bean 'hazelcastInstance' to allow for resolving potential circular references
...
2019-11-13 09:51:50,563 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Registered type handler: 'class [C'
2019-11-13 09:51:50,563 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Registered type handler: 'class java.time.Duration'
2019-11-13 09:51:50,563 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Registered type handler: 'class java.net.URL'
2019-11-13 09:51:50,563 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Registered type handler: 'class java.time.ZonedDateTime'
2019-11-13 09:51:50,655 INFO [com.hazelcast.config.XmlConfigLocator] [main] Loading 'hazelcast-default.xml' from classpath.
2019-11-13 09:51:50,812 INFO [com.hazelcast.instance.DefaultAddressPicker] [main] [LOCAL] [dev] [3.7.7] Prefer IPv4 stack is true.
2019-11-13 09:51:50,867 INFO [com.hazelcast.instance.DefaultAddressPicker] [main] [LOCAL] [dev] [3.7.7] Picked [10.20.20.86]:5702, using socket ServerSocket[addr=/0:0:0:0:0:0:0:0,localport=5702], bind any local is true
2019-11-13 09:51:50,868 INFO [com.hazelcast.system] [main] [10.20.20.86]:5702 [dev] [3.7.7] Hazelcast 3.7.7 (20170404 - e3c56ea) starting at [10.20.20.86]:5702
2019-11-13 09:51:50,868 INFO [com.hazelcast.system] [main] [10.20.20.86]:5702 [dev] [3.7.7] Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
2019-11-13 09:51:50,868 INFO [com.hazelcast.system] [main] [10.20.20.86]:5702 [dev] [3.7.7] Configured Hazelcast Serialization version : 1
2019-11-13 09:51:50,873 INFO [com.hazelcast.spi.impl.operationservice.impl.BackpressureRegulator] [main] [10.20.20.86]:5702 [dev] [3.7.7] Backpressure is disabled
2019-11-13 09:51:51,010 INFO [com.hazelcast.instance.Node] [main] [10.20.20.86]:5702 [dev] [3.7.7] Creating MulticastJoiner
2019-11-13 09:51:51,019 INFO [com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl] [main] [10.20.20.86]:5702 [dev] [3.7.7] Starting 4 partition threads
2019-11-13 09:51:51,020 INFO [com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl] [main] [10.20.20.86]:5702 [dev] [3.7.7] Starting 3 generic threads (1 dedicated for priority tasks)
2019-11-13 09:51:51,020 INFO [com.hazelcast.core.LifecycleService] [main] [10.20.20.86]:5702 [dev] [3.7.7] [10.20.20.86]:5702 is STARTING
2019-11-13 09:51:51,021 INFO [com.hazelcast.nio.tcp.nonblocking.NonBlockingIOThreadingModel] [main] [10.20.20.86]:5702 [dev] [3.7.7] TcpIpConnectionManager configured with Non Blocking IO-threading model: 3 input threads and 3 output threads
2019-11-13 09:51:53,952 INFO [com.hazelcast.internal.cluster.impl.MulticastJoiner] [main] [10.20.20.86]:5702 [dev] [3.7.7]
Members [1] {
Member [10.20.20.86]:5702 - d29f6be8-a775-4804-bce3-8e0d3aaaab4b this
}
2019-11-13 09:51:53,953 WARN [com.hazelcast.instance.Node] [main] [10.20.20.86]:5702 [dev] [3.7.7] Config seed port is 5701 and cluster size is 1. Some of the ports seem occupied!
2019-11-13 09:51:53,954 INFO [com.hazelcast.core.LifecycleService] [main] [10.20.20.86]:5702 [dev] [3.7.7] [10.20.20.86]:5702 is STARTED
2019-11-13 09:51:50,917 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Parsed mapper file: 'file [C:\workspaces\projects\com.sjngm.blah.db\target\classes\sqlmap\AttributeMapper.xml]'
它记录了两个警告，我不知道为什么。首先它尝试实例化一个独立的实例然后它一起玩并使用 Eureka 和 "complains" 关于打开的端口 5701.
恕我直言，第一个块根本不应该存在，这将导致不打印第二个警告。看起来 Hazelcast 首先初始化自己，然后 Spring-Boot 创建 @Bean.
我在这里错过了什么？
由于您禁用了多播，因此您没有 Hazelcast 的加入者。这就是它打印
的原因
No join method is enabled! Starting standalone.
这里是 link 如何为 Eureka 启用它
对于 3.7 等旧版本，您可以通过提供完全限定的 class 名称来配置 Eureka。
<network>
<discovery-strategies>
<discovery-strategy class="com.hazelcast.eureka.one.EurekaOneDiscoveryStrategy" enabled="true">
<properties>
<property name="namespace">hazelcast</property>
</properties>
</discovery-strategy>
</discovery-strategies>
</network>
P.S: 我建议你升级到最新的 hazelcast，因为 3.7.7 已经很旧了。
此处列出了最新的 Hazelcast 版本。 https://hazelcast.org/download/
我有这个 Spring-Boot 1.5.4 项目需要一个带有 Hazelcast 的集群数据库缓存。所以我所做的更改是：
pom.xml:
<dependency>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast</artifactId>
</dependency>
<dependency>
<groupId>com.hazelcast</groupId>
<artifactId>hazelcast-eureka-one</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>org.mybatis.caches</groupId>
<artifactId>mybatis-hazelcast</artifactId>
<version>1.1.1</version>
</dependency>
豆子：
@Bean
public Config hazelcastConfig(EurekaClient eurekaClient) {
EurekaOneDiscoveryStrategyFactory.setEurekaClient(eurekaClient);
Config config = new Config();
config.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
return config;
}
mapper.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.sjngm.blah.dao.mapper.AttributeMapper">
<resultMap type="attribute" id="attributeResult">
...
</resultMap>
<cache type="org.mybatis.caches.hazelcast.HazelcastCache" eviction="LRU" size="100000" flushInterval="600000" />
...
我没有 hazelcast.xml 或 eureka-client.properties。
开始正常，但记录如下：
2019-11-13 09:51:48,003 DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] [localhost-startStop-1] Returning cached instance of singleton bean 'org.springframework.transaction.config.internalTransactionAdvisor'
2019-11-13 09:51:48,005 DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] [localhost-startStop-1] Finished creating instance of bean 'hazelcastConfig'
2019-11-13 09:51:48,005 DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] [localhost-startStop-1] Autowiring by type from bean name 'hazelcastInstance' via factory method to bean named 'hazelcastConfig'
2019-11-13 09:51:48,066 INFO [com.hazelcast.instance.DefaultAddressPicker] [localhost-startStop-1] [LOCAL] [dev] [3.7.7] Prefer IPv4 stack is true.
2019-11-13 09:51:48,124 INFO [com.hazelcast.instance.DefaultAddressPicker] [localhost-startStop-1] [LOCAL] [dev] [3.7.7] Picked [10.20.20.86]:5701, using socket ServerSocket[addr=/0:0:0:0:0:0:0:0,localport=5701], bind any local is true
2019-11-13 09:51:48,142 INFO [com.hazelcast.system] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Hazelcast 3.7.7 (20170404 - e3c56ea) starting at [10.20.20.86]:5701
2019-11-13 09:51:48,142 INFO [com.hazelcast.system] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
2019-11-13 09:51:48,142 INFO [com.hazelcast.system] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Configured Hazelcast Serialization version : 1
2019-11-13 09:51:48,341 INFO [com.hazelcast.spi.impl.operationservice.impl.BackpressureRegulator] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Backpressure is disabled
2019-11-13 09:51:49,006 INFO [com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Starting 4 partition threads
2019-11-13 09:51:49,008 INFO [com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] Starting 3 generic threads (1 dedicated for priority tasks)
2019-11-13 09:51:49,013 INFO [com.hazelcast.core.LifecycleService] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] [10.20.20.86]:5701 is STARTING
2019-11-13 09:51:49,014 INFO [com.hazelcast.nio.tcp.nonblocking.NonBlockingIOThreadingModel] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] TcpIpConnectionManager configured with Non Blocking IO-threading model: 3 input threads and 3 output threads
2019-11-13 09:51:49,031 WARN [com.hazelcast.instance.Node] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] No join method is enabled! Starting standalone.
2019-11-13 09:51:49,063 INFO [com.hazelcast.core.LifecycleService] [localhost-startStop-1] [10.20.20.86]:5701 [dev] [3.7.7] [10.20.20.86]:5701 is STARTED
2019-11-13 09:51:49,269 DEBUG [org.springframework.beans.factory.support.DefaultListableBeanFactory] [localhost-startStop-1] Eagerly caching bean 'hazelcastInstance' to allow for resolving potential circular references
...
2019-11-13 09:51:50,563 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Registered type handler: 'class [C'
2019-11-13 09:51:50,563 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Registered type handler: 'class java.time.Duration'
2019-11-13 09:51:50,563 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Registered type handler: 'class java.net.URL'
2019-11-13 09:51:50,563 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Registered type handler: 'class java.time.ZonedDateTime'
2019-11-13 09:51:50,655 INFO [com.hazelcast.config.XmlConfigLocator] [main] Loading 'hazelcast-default.xml' from classpath.
2019-11-13 09:51:50,812 INFO [com.hazelcast.instance.DefaultAddressPicker] [main] [LOCAL] [dev] [3.7.7] Prefer IPv4 stack is true.
2019-11-13 09:51:50,867 INFO [com.hazelcast.instance.DefaultAddressPicker] [main] [LOCAL] [dev] [3.7.7] Picked [10.20.20.86]:5702, using socket ServerSocket[addr=/0:0:0:0:0:0:0:0,localport=5702], bind any local is true
2019-11-13 09:51:50,868 INFO [com.hazelcast.system] [main] [10.20.20.86]:5702 [dev] [3.7.7] Hazelcast 3.7.7 (20170404 - e3c56ea) starting at [10.20.20.86]:5702
2019-11-13 09:51:50,868 INFO [com.hazelcast.system] [main] [10.20.20.86]:5702 [dev] [3.7.7] Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
2019-11-13 09:51:50,868 INFO [com.hazelcast.system] [main] [10.20.20.86]:5702 [dev] [3.7.7] Configured Hazelcast Serialization version : 1
2019-11-13 09:51:50,873 INFO [com.hazelcast.spi.impl.operationservice.impl.BackpressureRegulator] [main] [10.20.20.86]:5702 [dev] [3.7.7] Backpressure is disabled
2019-11-13 09:51:51,010 INFO [com.hazelcast.instance.Node] [main] [10.20.20.86]:5702 [dev] [3.7.7] Creating MulticastJoiner
2019-11-13 09:51:51,019 INFO [com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl] [main] [10.20.20.86]:5702 [dev] [3.7.7] Starting 4 partition threads
2019-11-13 09:51:51,020 INFO [com.hazelcast.spi.impl.operationexecutor.impl.OperationExecutorImpl] [main] [10.20.20.86]:5702 [dev] [3.7.7] Starting 3 generic threads (1 dedicated for priority tasks)
2019-11-13 09:51:51,020 INFO [com.hazelcast.core.LifecycleService] [main] [10.20.20.86]:5702 [dev] [3.7.7] [10.20.20.86]:5702 is STARTING
2019-11-13 09:51:51,021 INFO [com.hazelcast.nio.tcp.nonblocking.NonBlockingIOThreadingModel] [main] [10.20.20.86]:5702 [dev] [3.7.7] TcpIpConnectionManager configured with Non Blocking IO-threading model: 3 input threads and 3 output threads
2019-11-13 09:51:53,952 INFO [com.hazelcast.internal.cluster.impl.MulticastJoiner] [main] [10.20.20.86]:5702 [dev] [3.7.7]
Members [1] {
Member [10.20.20.86]:5702 - d29f6be8-a775-4804-bce3-8e0d3aaaab4b this
}
2019-11-13 09:51:53,953 WARN [com.hazelcast.instance.Node] [main] [10.20.20.86]:5702 [dev] [3.7.7] Config seed port is 5701 and cluster size is 1. Some of the ports seem occupied!
2019-11-13 09:51:53,954 INFO [com.hazelcast.core.LifecycleService] [main] [10.20.20.86]:5702 [dev] [3.7.7] [10.20.20.86]:5702 is STARTED
2019-11-13 09:51:50,917 DEBUG [org.mybatis.spring.SqlSessionFactoryBean] [main] Parsed mapper file: 'file [C:\workspaces\projects\com.sjngm.blah.db\target\classes\sqlmap\AttributeMapper.xml]'
它记录了两个警告，我不知道为什么。首先它尝试实例化一个独立的实例然后它一起玩并使用 Eureka 和 "complains" 关于打开的端口 5701.
恕我直言，第一个块根本不应该存在，这将导致不打印第二个警告。看起来 Hazelcast 首先初始化自己，然后 Spring-Boot 创建 @Bean.
我在这里错过了什么？
由于您禁用了多播，因此您没有 Hazelcast 的加入者。这就是它打印
的原因No join method is enabled! Starting standalone.
这里是 link 如何为 Eureka 启用它
对于 3.7 等旧版本，您可以通过提供完全限定的 class 名称来配置 Eureka。
<network>
<discovery-strategies>
<discovery-strategy class="com.hazelcast.eureka.one.EurekaOneDiscoveryStrategy" enabled="true">
<properties>
<property name="namespace">hazelcast</property>
</properties>
</discovery-strategy>
</discovery-strategies>
</network>
P.S: 我建议你升级到最新的 hazelcast，因为 3.7.7 已经很旧了。 此处列出了最新的 Hazelcast 版本。 https://hazelcast.org/download/