public async Task PreferLocalPlacementGrain_ShouldNotMigrateWhenOtherSiloKilled(string value)
{
await HostedCluster.WaitForLivenessToStabilizeAsync();
output.WriteLine("******************** Starting test ({0}) ********************", value);
TestSilosStarted(2);
foreach (SiloHandle silo in HostedCluster.GetActiveSilos())
{
NodeConfiguration cfg = silo.Silo.LocalConfig;
Assert.IsNotNull(cfg, "NodeConfiguration should be present for silo " + silo);
output.WriteLine(
"Silo {0} : Address = {1} Proxy gateway: {2}",
cfg.SiloName, cfg.Endpoint, cfg.ProxyGatewayEndpoint);
}
IPEndPoint targetSilo;
if (value == "Primary")
{
targetSilo = HostedCluster.Primary.Endpoint;
}
else
{
targetSilo = HostedCluster.Secondary.Endpoint;
}
Guid proxyKey;
IRandomPlacementTestGrain proxy;
IPEndPoint expected;
do
{
proxyKey = Guid.NewGuid();
proxy = GrainFactory.GetGrain <IRandomPlacementTestGrain>(proxyKey);
expected = await proxy.GetEndpoint();
} while (!targetSilo.Equals(expected));
output.WriteLine("Proxy grain was originally located on silo {0}", expected);
Guid grainKey = proxyKey;
await proxy.StartPreferLocalGrain(grainKey);
IPreferLocalPlacementTestGrain grain = GrainFactory.GetGrain <IPreferLocalPlacementTestGrain>(grainKey);
IPEndPoint actual = await grain.GetEndpoint();
output.WriteLine("PreferLocalPlacement grain was originally located on silo {0}", actual);
Assert.AreEqual(expected, actual,
"PreferLocalPlacement strategy should create activations on the local silo.");
SiloHandle siloToKill = HostedCluster.GetActiveSilos().First(s => !s.Endpoint.Equals(expected));
output.WriteLine("Killing other silo {0} not hosting locally placed grain", siloToKill);
HostedCluster.StopSilo(siloToKill);
IPEndPoint newActual = await grain.GetEndpoint();
output.WriteLine("PreferLocalPlacement grain is now located on silo {0}", newActual);
Assert.AreEqual(expected, newActual,
"PreferLocalPlacement strategy should not move activations when other non-hosting silo fails.");
}
public async Task PreferLocalPlacementGrain_ShouldMigrateWhenHostSiloKilled(string value)
{
await HostedCluster.WaitForLivenessToStabilizeAsync();
output.WriteLine("******************** Starting test ({0}) ********************", value);
TestSilosStarted(2);
foreach (SiloHandle silo in HostedCluster.GetActiveSilos())
{
output.WriteLine(
"Silo {0} : Address = {1} Proxy gateway: {2}",
silo.Name, silo.SiloAddress, silo.GatewayAddress);
}
IPEndPoint targetSilo;
if (value == "Primary")
{
targetSilo = HostedCluster.Primary.SiloAddress.Endpoint;
}
else
{
targetSilo = HostedCluster.SecondarySilos.First().SiloAddress.Endpoint;
}
Guid proxyKey;
IRandomPlacementTestGrain proxy;
IPEndPoint expected;
do
{
proxyKey = Guid.NewGuid();
proxy = GrainFactory.GetGrain <IRandomPlacementTestGrain>(proxyKey);
expected = await proxy.GetEndpoint();
} while (!targetSilo.Equals(expected));
output.WriteLine("Proxy grain was originally located on silo {0}", expected);
Guid grainKey = proxyKey;
await proxy.StartPreferLocalGrain(grainKey);
IPreferLocalPlacementTestGrain grain = GrainFactory.GetGrain <IPreferLocalPlacementTestGrain>(grainKey);
IPEndPoint actual = await grain.GetEndpoint();
output.WriteLine("PreferLocalPlacement grain was originally located on silo {0}", actual);
Assert.Equal(expected, actual); // "PreferLocalPlacement strategy should create activations on the local silo."
SiloHandle siloToKill = HostedCluster.GetActiveSilos().First(s => s.SiloAddress.Endpoint.Equals(expected));
output.WriteLine("Killing silo {0} hosting locally placed grain", siloToKill);
HostedCluster.StopSilo(siloToKill);
IPEndPoint newActual = await grain.GetEndpoint();
output.WriteLine("PreferLocalPlacement grain was recreated on silo {0}", newActual);
Assert.NotEqual(expected, newActual); // "PreferLocalPlacement strategy should recreate activations on other silo if local fails."
}
