public void ShouldRetryOnSniffConnectionException_Async()
{
using (var fake = new AutoFake(callsDoNothing: true))
{
var uris = new[]
{
new Uri("http://localhost:9200"),
new Uri("http://localhost:9201"),
new Uri("http://localhost:9202")
};
var connectionPool = new SniffingConnectionPool(uris, randomizeOnStartup: false);
var config = new ConnectionConfiguration(connectionPool)
.SniffOnConnectionFault();
fake.Provide <IConnectionConfigurationValues>(config);
var pingAsyncCall = FakeCalls.PingAtConnectionLevelAsync(fake);
pingAsyncCall.Returns(FakeResponse.OkAsync(config));
//sniffing is always synchronous and in turn will issue synchronous pings
var pingCall = FakeCalls.PingAtConnectionLevel(fake);
pingCall.Returns(FakeResponse.Ok(config));
var sniffCall = FakeCalls.Sniff(fake);
var seenPorts = new List <int>();
sniffCall.ReturnsLazily((Uri u, IRequestConfiguration c) =>
{
seenPorts.Add(u.Port);
throw new Exception("Something bad happened");
});
var getCall = FakeCalls.GetCall(fake);
getCall.Returns(FakeResponse.BadAsync(config));
FakeCalls.ProvideDefaultTransport(fake);
var client = fake.Resolve <ElasticsearchClient>();
var e = Assert.Throws <MaxRetryException>(async() => await client.NodesHotThreadsAsync("nodex"));
//all nodes must be tried to sniff for more information
sniffCall.MustHaveHappened(Repeated.Exactly.Times(uris.Count()));
//make sure we only saw one call to hot threads (the one that failed initially)
getCall.MustHaveHappened(Repeated.Exactly.Once);
//make sure the sniffs actually happened on all the individual nodes
seenPorts.ShouldAllBeEquivalentTo(uris.Select(u => u.Port));
e.InnerException.Message.Should().Contain("Sniffing known nodes");
}
}
public void ShouldThrowAndNotRetrySniffOnConnectionFault401_Async()
{
using (var fake = new AutoFake(callsDoNothing: true))
{
var uris = new[]
{
new Uri("http://localhost:9200"),
new Uri("http://localhost:9201"),
new Uri("http://localhost:9202")
};
var connectionPool = new SniffingConnectionPool(uris, randomizeOnStartup: false);
var config = new ConnectionConfiguration(connectionPool)
.SniffOnConnectionFault()
.ThrowOnElasticsearchServerExceptions();
fake.Provide <IConnectionConfigurationValues>(config);
FakeCalls.ProvideDefaultTransport(fake);
var pingAsyncCall = FakeCalls.PingAtConnectionLevelAsync(fake);
pingAsyncCall.Returns(FakeResponse.OkAsync(config));
var pingCall = FakeCalls.PingAtConnectionLevel(fake);
pingCall.Returns(FakeResponse.Ok(config));
var sniffCall = FakeCalls.Sniff(fake);
var seenPorts = new List <int>();
sniffCall.ReturnsLazily((Uri u, IRequestConfiguration c) =>
{
seenPorts.Add(u.Port);
return(FakeResponse.Any(config, 401));
});
var getCall = FakeCalls.GetCall(fake);
getCall.Returns(FakeResponse.BadAsync(config));
var client = fake.Resolve <ElasticsearchClient>();
var e = Assert.Throws <ElasticsearchServerException>(async() => await client.InfoAsync());
e.Status.Should().Be(401);
sniffCall.MustHaveHappened(Repeated.Exactly.Once);
getCall.MustHaveHappened(Repeated.Exactly.Once);
}
}
public async void HostsReturnedBySniffAreVisited_Async()
{
using (var fake = new AutoFake())
{
var dateTimeProvider = fake.Resolve <IDateTimeProvider>();
var nowCall = A.CallTo(() => dateTimeProvider.Now());
nowCall.Returns(DateTime.UtcNow);
var connectionPool = new SniffingConnectionPool(new[]
{
new Uri("http://localhost:9200"),
new Uri("http://localhost:9201")
}, randomizeOnStartup: false);
var config = new ConnectionConfiguration(connectionPool)
.SniffOnConnectionFault();
fake.Provide <IConnectionConfigurationValues>(config);
FakeCalls.ProvideDefaultTransport(fake);
FakeCalls.PingAtConnectionLevelAsync(fake)
.ReturnsLazily(() =>
FakeResponse.OkAsync(config)
);
var sniffCall = FakeCalls.Sniff(fake, config, new List <Uri>()
{
new Uri("http://localhost:9204"),
new Uri("http://localhost:9203"),
new Uri("http://localhost:9202"),
new Uri("http://localhost:9201")
});
var connection = fake.Resolve <IConnection>();
var seenNodes = new List <Uri>();
//var getCall = FakeResponse.GetSyncCall(fake);
var getCall = A.CallTo(() => connection.Get(
A <Uri> .That.Not.Matches(u => u.AbsolutePath.StartsWith("/_nodes")),
A <IRequestConfiguration> ._));
getCall.ReturnsNextFromSequence(
FakeResponse.OkAsync(config), //info 1
FakeResponse.BadAsync(config), //info 2
FakeResponse.OkAsync(config), //info 2 retry
FakeResponse.OkAsync(config), //info 3
FakeResponse.OkAsync(config), //info 4
FakeResponse.OkAsync(config), //info 5
FakeResponse.OkAsync(config), //info 6
FakeResponse.OkAsync(config), //info 7
FakeResponse.OkAsync(config), //info 8
FakeResponse.OkAsync(config) //info 9
);
getCall.Invokes((Uri u, IRequestConfiguration o) => seenNodes.Add(u));
var client1 = fake.Resolve <ElasticsearchClient>();
await client1.InfoAsync(); //info call 1
await client1.InfoAsync(); //info call 2
await client1.InfoAsync(); //info call 3
await client1.InfoAsync(); //info call 4
await client1.InfoAsync(); //info call 5
await client1.InfoAsync(); //info call 6
await client1.InfoAsync(); //info call 7
await client1.InfoAsync(); //info call 8
await client1.InfoAsync(); //info call 9
sniffCall.MustHaveHappened(Repeated.Exactly.Once);
seenNodes.Should().NotBeEmpty().And.HaveCount(10);
seenNodes[0].Port.Should().Be(9200);
seenNodes[1].Port.Should().Be(9201);
//after sniff
seenNodes[2].Port.Should().Be(9202, string.Join(",", seenNodes.Select(n => n.Port)));
seenNodes[3].Port.Should().Be(9204);
seenNodes[4].Port.Should().Be(9203);
seenNodes[5].Port.Should().Be(9202);
seenNodes[6].Port.Should().Be(9201);
}
}
public async void DeadNodeIsSkipped_AndRevivedAfterTimeout_Async()
{
using (var fake = new AutoFake())
{
var dateTimeProvider = ProvideDateTimeProvider(fake);
var config = ProvideConfiguration(dateTimeProvider);
var connection = ProvideConnection(fake, config);
var getCall = FakeCalls.GetCall(fake);
var ok = Task.FromResult(FakeResponse.Ok(config));
var bad = Task.FromResult(FakeResponse.Bad(config));
getCall.ReturnsNextFromSequence(
ok, //info 1 - 9204
bad, //info 2 - 9203 DEAD
ok, //info 2 retry - 9202
ok, //info 3 - 9201
ok, //info 4 - 9204
ok, //info 5 - 9202
ok, //info 6 - 9201
ok, //info 7 - 9204
ok, //info 8 - 9203 (Now > Timeout)
ok //info 9 - 9202
);
var seenNodes = new List <Uri>();
getCall.Invokes((Uri u, IRequestConfiguration o) => seenNodes.Add(u));
var pingCall = FakeCalls.PingAtConnectionLevelAsync(fake);
pingCall.Returns(ok);
var client1 = fake.Resolve <ElasticsearchClient>();
var result = await client1.InfoAsync(); //info call 1
//first time node is used so a ping is sent first
result.Metrics.Requests.Count.Should().Be(2);
result.Metrics.Requests.First().RequestType.Should().Be(RequestType.Ping);
result.Metrics.Requests.First().Node.Port.Should().Be(9204);
result.Metrics.Requests.Last().RequestType.Should().Be(RequestType.ElasticsearchCall);
result.Metrics.Requests.Last().Node.Port.Should().Be(9204);
result = await client1.InfoAsync(); //info call 2
result.Metrics.Requests.Count.Should().Be(4);
//using 9203 for the first time ping succeeds
result.Metrics.Requests.First().RequestType.Should().Be(RequestType.Ping);
result.Metrics.Requests.First().Node.Port.Should().Be(9203);
result.Metrics.Requests.First().Success.Should().BeTrue();
//call on 9203 fails
result.Metrics.Requests[1].RequestType.Should().Be(RequestType.ElasticsearchCall);
result.Metrics.Requests[1].Node.Port.Should().Be(9203);
result.Metrics.Requests[1].Success.Should().BeFalse();
result.Metrics.Requests[1].HttpStatusCode.Should().Be(503);
//using 9202 for the first time ping succeeds
result.Metrics.Requests[2].RequestType.Should().Be(RequestType.Ping);
result.Metrics.Requests[2].Node.Port.Should().Be(9202);
//call on 9203 fails
result.Metrics.Requests[3].RequestType.Should().Be(RequestType.ElasticsearchCall);
result.Metrics.Requests[3].Node.Port.Should().Be(9202);
result.Metrics.Requests[3].Success.Should().BeTrue();
result.Metrics.Requests[3].HttpStatusCode.Should().Be(200);
result = await client1.InfoAsync(); //info call 3
result = await client1.InfoAsync(); //info call 4
result = await client1.InfoAsync(); //info call 5
result = await client1.InfoAsync(); //info call 6
result = await client1.InfoAsync(); //info call 7
result = await client1.InfoAsync(); //info call 8
result = await client1.InfoAsync(); //info call 9
AssertSeenNodesAreInExpectedOrder(seenNodes);
//4 nodes first time usage + 1 time after the first time 9203 came back to live
pingCall.MustHaveHappened(Repeated.Exactly.Times(5));
}
}