public void ShouldRemoveWriterFromCorrectRoutingTable()
{
var defaultRoutingTable =
new RoutingTable(null, new[] { server01 }, new[] { server02, server05 }, new[] { server03 }, 60);
var fooRoutingTable =
new RoutingTable("foo", new[] { server04, server06 }, new[] { server05 }, new[] { server06, server04 },
80);
var barRoutingTable =
new RoutingTable("bar", new[] { server07 }, new[] { server08 }, new[] { server09, server05 }, 100);
var manager = new RoutingTableManager(Mock.Of <IInitialServerAddressProvider>(), Mock.Of <IDiscovery>(),
Mock.Of <IClusterConnectionPoolManager>(), Mock.Of <ILogger>(), TimeSpan.MaxValue,
defaultRoutingTable, fooRoutingTable, barRoutingTable);
manager.ForgetWriter(server06, "foo");
manager.RoutingTableFor("foo").Routers.Should().BeEquivalentTo(server04, server06);
manager.RoutingTableFor("foo").Readers.Should().BeEquivalentTo(server05);
manager.RoutingTableFor("foo").Writers.Should().BeEquivalentTo(server04);
manager.RoutingTableFor("").Routers.Should().BeEquivalentTo(server01);
manager.RoutingTableFor("").Readers.Should().BeEquivalentTo(server02, server05);
manager.RoutingTableFor("").Writers.Should().BeEquivalentTo(server03);
manager.RoutingTableFor("bar").Routers.Should().BeEquivalentTo(server07);
manager.RoutingTableFor("bar").Readers.Should().BeEquivalentTo(server08);
manager.RoutingTableFor("bar").Writers.Should().BeEquivalentTo(server09, server05);
}
public async Task ShouldAllowMultipleRoutingTables(AccessMode mode)
{
var defaultRoutingTable =
new RoutingTable(null, new[] { server01 }, new[] { server02 }, new[] { server03 }, 60);
var fooRoutingTable =
new RoutingTable("foo", new[] { server04 }, new[] { server05 }, new[] { server06 }, 80);
var barRoutingTable =
new RoutingTable("bar", new[] { server07 }, new[] { server08 }, new[] { server09 }, 100);
var discovery = new Mock <IDiscovery>();
discovery.Setup(x => x.DiscoverAsync(It.IsAny <IConnection>(), "", null, Bookmark.Empty))
.ReturnsAsync(defaultRoutingTable);
discovery.Setup(x => x.DiscoverAsync(It.IsAny <IConnection>(), "foo", null, Bookmark.Empty))
.ReturnsAsync(fooRoutingTable);
discovery.Setup(x => x.DiscoverAsync(It.IsAny <IConnection>(), "bar", null, Bookmark.Empty))
.ReturnsAsync(barRoutingTable);
var poolManager = new Mock <IClusterConnectionPoolManager>();
poolManager.Setup(x => x.CreateClusterConnectionAsync(It.IsAny <Uri>()))
.ReturnsAsync(Mock.Of <IConnection>);
var initialAddressProvider = new Mock <IInitialServerAddressProvider>();
initialAddressProvider.Setup(x => x.Get()).Returns(new HashSet <Uri> {
server01, server04, server07
});
var manager = new RoutingTableManager(initialAddressProvider.Object, discovery.Object,
poolManager.Object, Mock.Of <ILogger>(), TimeSpan.MaxValue);
// When
var routingTable1 = await manager.EnsureRoutingTableForModeAsync(mode, null, null, Bookmark.Empty);
var routingTable2 =
await manager.EnsureRoutingTableForModeAsync(mode, "foo", null, Bookmark.Empty);
var routingTable3 =
await manager.EnsureRoutingTableForModeAsync(mode, "bar", null, Bookmark.Empty);
routingTable1.Should().Be(defaultRoutingTable);
routingTable2.Should().Be(fooRoutingTable);
routingTable3.Should().Be(barRoutingTable);
manager.RoutingTableFor(null).Should().Be(defaultRoutingTable);
manager.RoutingTableFor("").Should().Be(defaultRoutingTable);
manager.RoutingTableFor("foo").Should().Be(fooRoutingTable);
manager.RoutingTableFor("bar").Should().Be(barRoutingTable);
}
public async Task ShouldRemoveStaleEntriesOnUpdate()
{
var timer = new Mock <ITimer>();
var fooRoutingTable =
new RoutingTable("foo", new[] { server04 }, new[] { server05 }, new[] { server06 }, 1, timer.Object);
var barRoutingTable =
new RoutingTable("bar", new[] { server07 }, new[] { server08 }, new[] { server09 }, 4, timer.Object);
var discovery = new Mock <IDiscovery>();
discovery.Setup(x => x.DiscoverAsync(It.IsAny <IConnection>(), "foo", Bookmark.Empty))
.ReturnsAsync(fooRoutingTable);
discovery.Setup(x => x.DiscoverAsync(It.IsAny <IConnection>(), "bar", Bookmark.Empty))
.ReturnsAsync(barRoutingTable);
var poolManager = new Mock <IClusterConnectionPoolManager>();
poolManager.Setup(x => x.CreateClusterConnectionAsync(It.IsAny <Uri>()))
.ReturnsAsync(Mock.Of <IConnection>);
var initialAddressProvider = new Mock <IInitialServerAddressProvider>();
initialAddressProvider.Setup(x => x.Get()).Returns(new HashSet <Uri> {
server01, server04, server07
});
var manager = new RoutingTableManager(initialAddressProvider.Object, discovery.Object,
poolManager.Object, Mock.Of <ILogger>(), TimeSpan.FromSeconds(1));
// When
var routingTable1 =
await manager.EnsureRoutingTableForModeAsync(AccessMode.Read, "foo", Bookmark.Empty);
routingTable1.Should().Be(fooRoutingTable);
// Fake the timer to make foo routing table to be recognized as stale
timer.Setup(x => x.ElapsedMilliseconds).Returns(2 * 1000 + 1);
// An update should trigger an implicit clean-up of stale entries
var routingTable2 =
await manager.EnsureRoutingTableForModeAsync(AccessMode.Read, "bar", Bookmark.Empty);
routingTable2.Should().Be(barRoutingTable);
manager.RoutingTableFor("foo").Should().BeNull();
manager.RoutingTableFor("bar").Should().Be(barRoutingTable);
}
public async Task ShouldIsolateEntriesFromFailures()
{
var defaultRoutingTable =
new RoutingTable(null, new[] { server01 }, new[] { server02 }, new[] { server03 }, 60);
var fooRoutingTable =
new RoutingTable("foo", new[] { server04 }, new[] { server05 }, new[] { server06 }, 80);
var discovery = new Mock <IDiscovery>();
discovery.Setup(x => x.DiscoverAsync(It.IsAny <IConnection>(), "", null, Bookmark.Empty))
.ReturnsAsync(defaultRoutingTable);
discovery.Setup(x => x.DiscoverAsync(It.IsAny <IConnection>(), "foo", null, Bookmark.Empty))
.ReturnsAsync(fooRoutingTable);
discovery.Setup(x => x.DiscoverAsync(It.IsAny <IConnection>(), "bar", null, Bookmark.Empty))
.ThrowsAsync(new FatalDiscoveryException("message"));
var poolManager = new Mock <IClusterConnectionPoolManager>();
poolManager.Setup(x => x.CreateClusterConnectionAsync(It.IsAny <Uri>()))
.ReturnsAsync(Mock.Of <IConnection>());
var initialAddressProvider = new Mock <IInitialServerAddressProvider>();
initialAddressProvider.Setup(x => x.Get()).Returns(new HashSet <Uri> {
server01, server04, server07
});
var manager = new RoutingTableManager(initialAddressProvider.Object, discovery.Object,
poolManager.Object, Mock.Of <ILogger>(), TimeSpan.MaxValue);
// When
var routingTable1 =
await manager.EnsureRoutingTableForModeAsync(AccessMode.Write, null, null, Bookmark.Empty);
var routingTable2 =
await manager.EnsureRoutingTableForModeAsync(AccessMode.Write, "foo", null, Bookmark.Empty);
routingTable1.Should().Be(defaultRoutingTable);
routingTable2.Should().Be(fooRoutingTable);
manager.Awaiting(m => m.EnsureRoutingTableForModeAsync(AccessMode.Write, "bar", null, Bookmark.Empty))
.Should().Throw <FatalDiscoveryException>();
manager.RoutingTableFor("").Should().Be(defaultRoutingTable);
manager.RoutingTableFor("foo").Should().Be(fooRoutingTable);
}