如何使安装在docker上不同aws实例上的Hazelcast节点彼此交互？

Question

我有三台aws机器，我在上面安装了三个安装了hazelcast-3.5.4的docker容器（ubuntu），设置了aws配置，就像我通常使用Hazelcast（不使用docker）所做的那样，节点之间没有发现彼此。如何使他们互动或发现彼此？

Hazelcast.xml文件如下所示：

    <join>
        <multicast enabled="false">
            <multicast-group>224.2.2.3</multicast-group>
            <multicast-port>54327</multicast-port>
        </multicast>
        <tcp-ip enabled="false">
            <interface>127.0.0.1</interface>
            <member-list>
                <member>127.0.0.1</member>
            </member-list>
        </tcp-ip>
        <aws enabled="true">
            <access-key>Some_key</access-key>
            <secret-key>Secret_key</secret-key>
            <!--optional, default is us-east-1 -->
            <region>us-east-1</region>
            <!--optional, default is ec2.amazonaws.com. If set, region shouldn't be set as it will override this property -->
            <host-header>ec2.amazonaws.com</host-header>
            <!-- optional, only instances belonging to this group will be discovered, default will try all running instances -->
            <!--security-group-name>hazelcast-sg</security-group-name-->
            <tag-key>type</tag-key>
            <tag-value>hz-nodes</tag-value>
        </aws>
    </join>

 <public-address>private-ip-of-aws-node</public-address>
<properties>
  <property name="hazelcast.local.localAddress">private-ip-of-aws-node</property>
</properties>

另外，根据类似帖子中的建议，我还添加了另外两个条目，该条目似乎对我不起作用。

Answer 1

您需要使用--net=host选项运行hazelcast
docker映像。我测试了由hazelcast（https://hub.docker.com/r/hazelcast/hazelcast/）发布的Docker镜像，版本3.5.4，在AWS
EC2上有两个实例。我的Docker版本是Docker version 1.9.1, build a34a1d5ec2上使用的ami Ubuntu Server 14.04 LTS (HVM), SSD Volume Type - ami-fce3c696，这是我的hazelcast.xml：

<?xml version="1.0" encoding="UTF-8"?>
<hazelcast xsi:schemaLocation="http://www.hazelcast.com/schema/config hazelcast-config-3.5.xsd"
           xmlns="http://www.hazelcast.com/schema/config"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <group>
        <name>dev</name>
        <password>dev-pass</password>
    </group>
    <management-center enabled="false">http://localhost:8080/mancenter</management-center>
    <network>
        <port auto-increment="true" port-count="100">5701</port>
        <outbound-ports>
            <!--
            Allowed port range when connecting to other nodes.
            0 or * means use system provided port.
            -->
            <ports>0</ports>
        </outbound-ports>
        <join>
            <multicast enabled="false">
                <multicast-group>224.2.2.3</multicast-group>
                <multicast-port>54327</multicast-port>
            </multicast>
            <tcp-ip enabled="false">
                <interface>127.0.0.1</interface>
                <member-list>
                    <member>127.0.0.1</member>
                </member-list>
            </tcp-ip>
            <aws enabled="true">
                <access-key>your-acces-key</access-key>
                <secret-key>your-secret-key</secret-key>
            </aws>
        </join>
        <public-address>private-ip-address-of-ec2-instance</public-address>
    </network>
    <properties>
       <property name="hazelcast.local.localAddress">private-ip-address-of-ec2-instance</property>
   </properties>
</hazelcast>

这是我的docker命令，用于使用自定义配置文件运行hazelcast映像： docker run --net=host -e JAVA_OPTS="-Dhazelcast.config=/configFolder/hazelcast.xml" -v ~/configFolder:/configFolder -ti hazelcast/hazelcast

如果该--net=host选项不起作用，请确保在hazelcast使用的安全组中，配置端口已作为入站端口打开。您还可以启用调试以查看有关通过ec2
Discovery发现的节点的更多详细信息。

请参阅Debugginghazelcast
ec2发现部分下的部分：http :
//docs.hazelcast.org/docs/latest-dev/manual/html-
single/index.html#discovering-members-within-
ec2-cloud