c# - 尝试将流事件附加到 EventStore 会引发异常

Question

我目前正在开始使用 EventStore我正在关注 Getting Started指导。我只是卡在第一步，不知道我做错了什么......

我现在使用的版本是 20.6.0 .

我正在尝试使用 .NET Core 客户端将事件写入我的本地实例(它正在运行，因为我可以使用 AdminUI 添加事件)。但我得到一个异常(exception)，如 One or more errors occurred. (Connection 'ES-41230054-2026-4cdb-b2bb-a35824779863' was closed.)' .

在尝试修复它一段时间后，我去了 .Net Client guide并粘贴完全相同的代码:

        public static void Main()
        {
            var conn = EventStoreConnection.Create(new Uri("tcp://admin:changeit@localhost:1113"));
            conn.ConnectAsync().Wait();

            var data = Encoding.UTF8.GetBytes("{\"a\":\"2\"}");
            var metadata = Encoding.UTF8.GetBytes("{}");
            var evt = new EventData(Guid.NewGuid(), "testEvent", true, data, metadata);

            conn.AppendToStreamAsync("test-stream", ExpectedVersion.Any, evt).Wait();

            var streamEvents = conn.ReadStreamEventsForwardAsync("test-stream", 0, 1, false).Result;
            var returnedEvent = streamEvents.Events[0].Event;

            Console.WriteLine("Read event with data: {0}, metadata: {1}",
                Encoding.UTF8.GetString(returnedEvent.Data),
                Encoding.UTF8.GetString(returnedEvent.Metadata));
        }
    }

但是当我到达这一行时，也会引发同样的异常:

conn.AppendToStreamAsync("test-stream", ExpectedVersion.Any, evt).Wait();

我在创建连接时尝试了不同的方法，但到目前为止都没有。

我想知道我是否遗漏了一些配置......如果有人遇到过这个问题并能为我提供一些启示，我将非常感激。

添加更多信息

激活日志记录后，我看到了以下内容:

尝试附加事件时，我得到以下输出:

[01,07:28:46.528,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': enqueueing message EventStore.ClientAPI.Internal.StartConnectionMessage..
[04,07:28:46.545,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': StartConnection.
[04,07:28:46.546,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': DiscoverEndPoint.
[04,07:28:46.549,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': enqueueing message EventStore.ClientAPI.Internal.EstablishTcpConnectionMessage..
[06,07:28:46.561,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': EstablishTcpConnection to [127.0.0.1:1113].
[05,07:28:46.582,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': enqueueing message EventStore.ClientAPI.Internal.StartOperationMessage..
[06,07:28:46.642,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': StartOperation enqueue AppendToStreamOperation, Stream: newstream, ExpectedVersion: -2, 10, 00:00:07..
[06,07:28:46.643,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': EnqueueOperation WAITING for Operation AppendToStreamOperation (a301f19c-bb92-4c53-a193-3a81582a49db): Stream: newstream, ExpectedVersion: -2, retry count: 0, created: 07:28:46.642, last updated: 07:28:46.642..
[08,07:28:48.702,DEBUG] TcpPackageConnection: connection to [127.0.0.1:1113, L, {69f92d44-54ab-4643-b540-23f89b796fcf}] failed. Error: ConnectionRefused.
[08,07:28:48.703,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': enqueueing message EventStore.ClientAPI.Internal.TcpConnectionClosedMessage..
[08,07:28:48.704,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': TCP connection to [127.0.0.1:1113, L, {69f92d44-54ab-4643-b540-23f89b796fcf}] closed..
[06,07:28:48.924,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': TimerTick checking reconnection....
[06,07:28:49.213,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': ExecuteOperation package WriteEvents, a301f19c-bb92-4c53-a193-3a81582a49db, Operation AppendToStreamOperation (a301f19c-bb92-4c53-a193-3a81582a49db): Stream: newstream, ExpectedVersion: -2, retry count: 0, created: 07:28:46.642, last updated: 07:28:48.935..
[06,07:28:49.229,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': DiscoverEndPoint.
[06,07:28:49.230,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': enqueueing message EventStore.ClientAPI.Internal.EstablishTcpConnectionMessage..
[04,07:28:49.231,DEBUG] EventStoreConnection 'ES-90357f8a-6c79-4638-909a-142c8ddb9a8b': EstablishTcpConnection to [127.0.0.1:1113].
所以这似乎是说问题在于端口未打开，我尝试完全禁用防火墙但没有运气。

同样当我执行命令 EventStore.ClusterNode.exe --db ./db --log ./logs --dev我在输出中注意到了这一点:

如果我这样做 telnet 127.0.0.1 1113它似乎无法连接，但我没有找到问题所在。任何的想法？

Answer 1

我有完全相同的问题@devcrp

当您启动服务器时，带有“接口(interface)”的图像直接将我指向丢失的标志。

解决方案(对于 20.6.0 > )是在启动事件存储时添加此标志

--enable-external-tcp

我在管理 UI 中禁用“流浏览器”时遇到了类似的问题，它需要

--enable-atom-pub-over-http 

我还有其他一些问题🤠
就像不知道访问管理 UI 需要 https 一样，http 已在文档中说明并且不起作用(在 20.6.0 中也是新的)以及如何使配置文件工作(也是由于过时的标志，ExtSecureTcpPort，在文档中，并且缺少有关 TrustedRootCertificatesPath 的信息)

这里有一些关于使用 config.yaml 和 TrustedRootCertificatesPath https://gist.github.com/JimiSweden/f8916a94bd3dab1ff07c940b9169c946 的信息

如果您在“接口(interface)”之后查看控制台中声明“弃用警告”的行，就会提示为什么需要启用 atom-pub-over-http 和 external-tcp

Here is my console output with external-tcp and atom-pub-over-http enabled

what you see here has nothing to do with firewalls etc, it is solely the output from event store.

[28224, 1,22:27:51.677,INF]
INTERFACES
External TCP (Protobuf)
        Enabled : True
        Port    : 1113
HTTP (AtomPub)
        Enabled : True
        Port    : 2113

[28224, 1,22:27:51.678,WRN]
 DEPRECATION WARNING: AtomPub over HTTP Interface has been deprecated as of version 20.02. It is recommended to use gRPC instead.

[28224, 1,22:27:51.678,WRN]
 DEPRECATION WARNING: The Legacy TCP Client Interface has been deprecated as of version 20.02. The External TCP Interface can be re-enabled with the 'EnableExternalTCP' option. It is recommended to use gRPC instead.

This is my working start command(in a file called '.\eventstore start command.ps1' to make it simpler to run the server)

EventStore.ClusterNode.exe --db ./db --log ./logs --config=config.yaml --enable-atom-pub-over-http --enable-external-tcp --run-projections=all --start-standard-projections=true