Apache Ignite，C#：瘦客户端无法连接到服务器节点

Question

我希望能够在 C# 中以编程方式配置瘦客户端节点，在缓存中执行 SQL 查询；此外，此节点连接远程启动的集群。但是，我在本地 VS 控制台和 Linux:

中都收到错误

本地错误，VS 控制台

Apache.Ignite.Core.Client.IgniteClientException: 'Client connection has failed. Examine InnerException for details'

InnerException
SocketException: An established connection was aborted by the software in your host machine.

远程错误，Linux

Unknown connection detected (is some other software connecting to this Ignite port? missing SSL configuration on remote node?) [rmtAddr=/[localHost2]]

我想知道问题是出在我用于瘦客户端配置的 C# 代码上，还是出在我为启动远程集群而传递的 XML 文件上。

C#代码

namespace ThinClient
{
    class Program
    {
        static void Main(string[] args)
        {

            var cfg = new IgniteClientConfiguration
            {
                Endpoints = new[] { "[remoteHost]", "[remoteHost]:47500..47509", "[remoteHost]:10800", "[localHost2]",  "[localHost2]:10800"}
            };
            
            using (var client = Ignition.StartClient(cfg))
            {
                var cache = client.GetOrCreateCache<int, Object>("default");
                Console.WriteLine(">>> Client node connected.");
            }
            
        }
    }
}

XML 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="
        http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="ignite.cfg" class="org.apache.ignite.configuration.IgniteConfiguration">
        <!-- Explicitly configure TCP discovery SPI to provide list of initial nodes. -->
        <property name="discoverySpi">
            <bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
                <property name="ipFinder">
                    <bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">
                        <property name="addresses">
                            <list>
                                <!-- In distributed environment, replace with actual host IP address. -->
                                <value>[remoteHost]:47500..47509</value>
                                <value>[localHost1]:47500..47509</value>
                                <value>[localHost2]:47500..47509</value>
                                <value>[localHost2]:10800</value>
                            </list>
                        </property>
                    </bean>
                </property>
            </bean>
        </property>
    </bean>
</beans>

Answer 1

我怀疑出现此问题是因为您正尝试使用来自 localHost2 的瘦客户端连接到发现端口。要解决这个问题，只需从您的瘦客户端配置中删除发现端点。

var cfg = new IgniteClientConfiguration
{
    Endpoints = new[] { "[remoteHost]:10800" }
};

还值得一提的是，您的服务器配置似乎也不正确。 addresses 属性应该只包含厚服务器节点的发现地址。可以提供至少一个工作节点的地址（如果节点将成为第一个节点，甚至可以提供 0）。但通常建议提供所有这些，这样可以为每个服务器节点保留类似的配置。在您的情况下，这段代码应该可以解决问题：

<property name="ipFinder">
    <bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">
        <property name="addresses">
            <list>
                <value>[remoteHost]:47500..47509</value>
            </list>
        </property>
    </bean>
</property>

Apache Ignite，C#：瘦客户端无法连接到服务器节点

Apache Ignite, C#: Thin Client unable to connect to server node

c#

xml

ignite