public void PollingDetectsStaleStatus()
{
SetStoreTimestamp(UnixMillisecondTime.Now.PlusMillis(5000)); // future time, definitely not stale
var bsConfig = Components.BigSegments(_storeFactory)
.StatusPollInterval(TimeSpan.FromMilliseconds(10))
.StaleAfter(TimeSpan.FromMilliseconds(200))
.CreateBigSegmentsConfiguration(BasicContext);
using (var sw = new BigSegmentStoreWrapper(bsConfig, BasicTaskExecutor, TestLogger))
{
var status1 = sw.GetStatus();
Assert.False(status1.Stale);
var statuses = new EventSink <BigSegmentStoreStatus>();
sw.StatusChanged += statuses.Add;
SetStoreTimestamp(UnixMillisecondTime.Now.PlusMillis(-200));
var status2 = statuses.ExpectValue();
Assert.True(status2.Stale);
SetStoreTimestamp(UnixMillisecondTime.Now.PlusMillis(5000));
var status3 = statuses.ExpectValue();
Assert.False(status3.Stale);
}
}
public void PollingDetectsStoreUnavailability()
{
SetStoreTimestamp(UnixMillisecondTime.Now);
var bsConfig = Components.BigSegments(_storeFactory)
.StatusPollInterval(TimeSpan.FromMilliseconds(10))
.StaleAfter(TimeSpan.FromDays(1))
.CreateBigSegmentsConfiguration(BasicContext);
using (var sw = new BigSegmentStoreWrapper(bsConfig, BasicTaskExecutor, TestLogger))
{
var status1 = sw.GetStatus();
Assert.True(status1.Available);
var statuses = new EventSink <BigSegmentStoreStatus>();
sw.StatusChanged += statuses.Add;
SetStoreStatusError(new Exception("sorry"));
var status2 = statuses.ExpectValue();
if (status2.Available)
{
// depending on timing, we might or might not receive an initial update of Available = true
status2 = statuses.ExpectValue();
Assert.False(status2.Available);
}
Assert.Equal(status2, sw.GetStatus());
SetStoreTimestamp(UnixMillisecondTime.Now);
var status3 = statuses.ExpectValue();
Assert.True(status3.Available);
Assert.Equal(status3, sw.GetStatus());
}
AssertLogMessageRegex(true, Logging.LogLevel.Error,
"Big Segment store status.*Exception.*sorry");
}