public async Task spin_up_several_daemons_and_fail_over()
{
var daemon1 = await StartDaemonInHotColdMode();
await assertIsRunning(daemon1, 1.Seconds());
var others = new ProjectionDaemon[4];
others[0] = await StartDaemonInHotColdMode();
others[1] = await StartDaemonInHotColdMode();
others[2] = await StartDaemonInHotColdMode();
others[3] = await StartDaemonInHotColdMode();
await daemon1.StopAll();
var active = await findRunningDaemon(others);
foreach (var other in others)
{
if (other.Equals(active))
{
continue;
}
other.IsRunning.ShouldBeFalse();
}
}
internal async Task <ProjectionDaemon> StartDaemon()
{
var daemon = new ProjectionDaemon(theStore, Logger);
await daemon.StartAllShards();
_daemon = daemon;
return(daemon);
}
internal async Task <ProjectionDaemon> StartDaemon()
{
var agent = new ProjectionDaemon(theStore, Logger);
await agent.StartAll();
_agent = agent;
return(agent);
}
internal async Task <ProjectionDaemon> StartAdditionalDaemonInHotColdMode()
{
theStore.Options.Projections.LeadershipPollingTime = 100;
var coordinator = new HotColdCoordinator(theStore, theStore.Options.Projections, Logger);
var daemon = new ProjectionDaemon(theStore, new HighWaterDetector(coordinator, theStore.Events), Logger);
await daemon.UseCoordinator(coordinator);
_disposables.Add(daemon);
return(daemon);
}
internal IProjectionDaemon StartProjectionDaemon(DocumentStore store, ILogger?logger = null)
{
logger ??= new NulloLogger();
var detector = new HighWaterDetector(new AutoOpenSingleQueryRunner(this), _options.EventGraph, logger);
var daemon = new ProjectionDaemon(store, this, detector, logger);
Tracker = daemon.Tracker;
return(daemon);
}
public async Task detect_correctly_after_restarting_with_previous_state()
{
NumberOfStreams = 10;
await PublishSingleThreaded();
using var agent = await StartDaemon();
await agent.Tracker.WaitForHighWaterMark(NumberOfEvents, 15.Seconds());
agent.Tracker.HighWaterMark.ShouldBe(NumberOfEvents);
await agent.StopAll();
using var agent2 = new ProjectionDaemon(theStore, new NulloLogger());
await agent2.StartDaemon();
await agent2.Tracker.WaitForHighWaterMark(NumberOfEvents, 15.Seconds());
}
private async Task assertIsRunning(ProjectionDaemon daemon, TimeSpan timeout)
{
if (daemon.IsRunning)
{
return;
}
var stopwatch = new Stopwatch();
stopwatch.Start();
while (stopwatch.Elapsed < timeout && !daemon.IsRunning)
{
await Task.Delay(200.Milliseconds());
}
stopwatch.Stop();
daemon.IsRunning.ShouldBeTrue();
}
