public void SaveOneMillionEventsWithLMDBAndDummyPublisher()
{
int numberOfEvents = 1000000;
int serialId = 0;
//For some reason, the values higher than 500 MB does not work.
//TB = 1099511627776
//GB = 1073741824
//500MB = 524288000
//100MB = 104857600
IEventStoreBuilder builder = new EventStoreBuilder();
var eventStore = builder.UseLMDBRepository()
.Configuration(@"c:\temp\lmdbevents", 2, 524288000, new ProtobufEventsSerializer())
.UseCustom(new DummyEventPublisher())
.Build();
var before = DateTime.Now;
var tasks = new ConcurrentBag <Task>();
foreach (int i in Enumerable.Range(0, numberOfEvents))
{
tasks.Add(eventStore.Process(new EventTransaction
{
Events = new[] {
new Event
{
AggregateId = Guid.NewGuid(),
SerialId = serialId++,
SerializedEvent = BitConverter.GetBytes(i),
EventType = "A type of event"
}
}
}));
}
Task.WhenAll(tasks.ToArray()).Wait();
var after = DateTime.Now;
var timeInMilliseconds = (after - before).TotalMilliseconds;
var rate = numberOfEvents / (after - before).TotalSeconds;
eventStore.Dispose();
Assert.True(true, string.Format("Added {0} in {1} milliseconds, which is a rate of {2} per second", numberOfEvents, timeInMilliseconds, rate));
}
public void ReadOneMillionFromLMDB()
{
int numberOfEvents = 1000000;
int serialId = 0;
IEventStoreBuilder builder = new EventStoreBuilder();
var eventStore = builder.UseLMDBRepository()
.Configuration(@"c:\temp\lmdbevents", 2, 524288000, new ProtobufEventsSerializer())
.UseCustom(new DummyEventPublisher())
.Build();
var tasks = new ConcurrentBag <Task>();
foreach (int i in Enumerable.Range(0, numberOfEvents))
{
tasks.Add(eventStore.Process(new EventTransaction
{
Events = new[] {
new Event
{
AggregateId = Guid.NewGuid(),
SerialId = serialId++,
SerializedEvent = BitConverter.GetBytes(i),
EventType = "A type of event"
}
}
}));
}
Task.WhenAll(tasks.ToArray()).Wait();
var before = DateTime.Now;
var x = eventStore.GetAllEvents(0, 1000000);
var after = DateTime.Now;
var timeInMilliseconds = (after - before).TotalMilliseconds;
var rate = numberOfEvents / (after - before).TotalSeconds;
eventStore.Dispose();
Assert.True(true, string.Format("Read {0} in {1} milliseconds, which is a rate of {2} per second", numberOfEvents, timeInMilliseconds, rate));
}
public void BuildLMDBEventStoreDoesNotThrow()
{
IEventStoreBuilder builder = new EventStoreBuilder();
EventStore es = null;
es = builder.UseLMDBRepository()
.Configuration(@"c:\lmdb", 2, 10485760, new ProtobufEventsSerializer())
.UseCustom(new DummyEventPublisher())
.Build();
Assert.NotNull(es);
//Clean up database
es.Dispose();
//Cleaning up disk
GC.Collect();
GC.WaitForPendingFinalizers();
var datafile = Path.Combine(@"c:\lmdb", "data.mdb");
if (File.Exists(datafile))
{
File.Delete(datafile);
}
var lockfile = Path.Combine(@"c:\lmdb", "lock.mdb");
if (File.Exists(lockfile))
{
File.Delete(lockfile);
}
}