internal async Task should_handle_node_preference_from_gossip(
ClusterMessages.VNodeState nodeState,
NodePreference nodePreference)
{
var response = new ClusterMessages.ClusterInfoDto {
Members = new[] {
new ClusterMessages.MemberInfoDto {
State = nodeState,
IsAlive = true,
ExternalTcpIp = "127.0.0.1",
ExternalTcpPort = 1113
},
new ClusterMessages.MemberInfoDto {
State = ClusterMessages.VNodeState.Unknown,
IsAlive = true,
ExternalTcpIp = "127.0.0.1",
ExternalTcpPort = 2113
}
}
};
var sut = new ClusterDnsEndPointDiscoverer(new ConsoleLogger(), "dns", 1, 1111,
new[] { new GossipSeed(new IPEndPoint(IPAddress.Any, 2113)) }, TimeSpan.FromSeconds(1),
nodePreference,
new NoCompatibilityMode(),
new TestHttpClient(response.ToJson()));
var result = await sut.DiscoverAsync(new IPEndPoint(IPAddress.Any, 1113));
Assert.Equal(1113, EndPointExtensions.GetPort(result.TcpEndPoint));
}
private ClusterMessages.ClusterInfoDto TryGetGossipFrom(GossipSeed endPoint)
{
//_log.Debug("ClusterDnsEndPointDiscoverer: Trying to get gossip from [{0}].", endPoint);
ClusterMessages.ClusterInfoDto result = null;
var completed = new ManualResetEventSlim(false);
var url = endPoint.EndPoint.ToHttpUrl(
endPoint.SeedOverTls ? EndpointExtensions.HTTPS_SCHEMA : EndpointExtensions.HTTP_SCHEMA,
"/gossip?format=json", true);
_client.Get(
url,
null,
response => {
try {
if (response.HttpStatusCode != HttpStatusCode.OK)
{
_log.Info("[{0}] responded with {1} ({2})", endPoint, response.HttpStatusCode,
response.StatusDescription);
return;
}
try {
result = response.Body.ParseJson <ClusterMessages.ClusterInfoDto>();
//_log.Debug("ClusterDnsEndPointDiscoverer: Got gossip from [{0}]:\n{1}.", endPoint, string.Join("\n", result.Members.Select(x => x.ToString())));
} catch (Exception e) {
if (e is AggregateException ae)
{
e = ae.Flatten();
}
_log.Error("Failed to get cluster info from [{0}]: deserialization error: {1}.", endPoint, e);
}
} finally {
completed.Set();
}
},
e => {
try {
if (e is AggregateException ae)
{
e = ae.Flatten();
}
_log.Error("Failed to get cluster info from [{0}]: request failed, error: {1}.", endPoint, e);
} finally {
completed.Set();
}
},
// https://github.com/EventStore/EventStore/pull/2744#pullrequestreview-562358658
endPoint.V5HostHeader ? "" : endPoint.EndPoint.GetHost());
completed.Wait();
return(result);
}
private ClusterMessages.ClusterInfoDto TryGetGossipFrom(GossipSeed endPoint)
{
//_log.Debug("ClusterDnsEndPointDiscoverer: Trying to get gossip from [{0}].", endPoint);
ClusterMessages.ClusterInfoDto result = null;
var completed = new ManualResetEventSlim(false);
var url = endPoint.EndPoint.ToHttpUrl("/gossip?format=json");
_client.Get(
url,
null,
_gossipTimeout,
response =>
{
if (response.HttpStatusCode != HttpStatusCode.OK)
{
//_log.Info("[{0}] responded with {1} ({2})", endPoint, response.HttpStatusCode, response.StatusDescription);
completed.Set();
return;
}
try
{
result = response.Body.ParseJson <ClusterMessages.ClusterInfoDto>();
//_log.Debug("ClusterDnsEndPointDiscoverer: Got gossip from [{0}]:\n{1}.", endPoint, string.Join("\n", result.Members.Select(x => x.ToString())));
}
catch (Exception)
{
//_log.Info("Failed to get cluster info from [{0}]: deserialization error: {1}.", endPoint, e.Message);
}
completed.Set();
},
e =>
{
//_log.Info("Failed to get cluster info from [{0}]: request failed, error: {1}.", endPoint, e.Message);
completed.Set();
}, endPoint.HostHeader);
completed.Wait();
return(result);
}
private ClusterMessages.ClusterInfoDto ClusterInfoOrDefault(IPAddress manager)
{
ClusterMessages.ClusterInfoDto info = null;
var completed = new ManualResetEvent(false);
Action <HttpResponse> success = response =>
{
_log.Info("Got response from manager on [{0}]", manager);
if (response.HttpStatusCode != HttpStatusCode.OK)
{
_log.Info("Manager responded with {0} ({1})", response.HttpStatusCode, response.StatusDescription);
completed.Set();
return;
}
try
{
using (var reader = new StringReader(response.Body))
info = (ClusterMessages.ClusterInfoDto) new XmlSerializer(typeof(ClusterMessages.ClusterInfoDto)).Deserialize(reader);
}
catch (Exception e)
{
_log.Info(e, "Failed to get cluster info from manager on [{0}]. Deserialization error", manager);
}
completed.Set();
};
Action <Exception> error = e =>
{
_log.Info(e, "Failed to get cluster info from manager on [{0}]. Request failed");
completed.Set();
};
var url = new IPEndPoint(manager, _port).ToHttpUrl("/gossip?format=xml");
_log.Info("Sending gossip request to {0}...", url);
_client.Get(url, success, error);
completed.WaitOne();
return(info);
}
