public async Task GetSubscriptionResend()
{
var subscriptionName = GetStringQueryString("name");
using (ServerStore.Engine.ContextPool.AllocateOperationContext(out ClusterOperationContext context))
using (context.OpenReadTransaction())
await using (var writer = new AsyncBlittableJsonTextWriter(context, ResponseBodyStream()))
{
var subscriptionState = Database
.SubscriptionStorage
.GetSubscriptionFromServerStore(subscriptionName);
if (subscriptionState == null)
{
HttpContext.Response.StatusCode = (int)HttpStatusCode.NotFound;
return;
}
var subscriptionConnections = Database.SubscriptionStorage.GetSubscriptionConnectionsState(context, subscriptionName);
var items = SubscriptionStorage.GetResendItems(context, Database.Name, subscriptionState.SubscriptionId);
writer.WriteStartObject();
writer.WriteArray("Active", subscriptionConnections.GetActiveBatches());
writer.WriteComma();
writer.WriteArray("Results", items.Select(i => i.ToJson()), context);
writer.WriteEndObject();
}
}
public async Task CanSnapshotSubscriptionState()
{
var(_, leader) = await CreateRaftCluster(1, watcherCluster : true);
using (var store = GetDocumentStore(options: new Options
{
Server = leader
}))
{
var sub = await store.Subscriptions.CreateAsync <User>();
var worker = store.Subscriptions.GetSubscriptionWorker <User>(sub);
var waitForBatch = new ManualResetEvent(false);
var t = worker.Run((batch) => { waitForBatch.WaitOne(TimeSpan.FromSeconds(15)); });
using (var session = store.OpenAsyncSession())
{
await session.StoreAsync(new User());
await session.SaveChangesAsync();
}
var database = await leader.ServerStore.DatabasesLandlord.TryGetOrCreateResourceStore(store.Database);
database.SubscriptionStorage.GetSubscriptionFromServerStore(sub);
var server2 = GetNewServer();
var server2Url = server2.ServerStore.GetNodeHttpServerUrl();
Servers.Add(server2);
using (var requestExecutor = ClusterRequestExecutor.CreateForSingleNode(leader.WebUrl, null))
using (requestExecutor.ContextPool.AllocateOperationContext(out var ctx))
{
await requestExecutor.ExecuteAsync(new AddClusterNodeCommand(server2Url, watcher : true), ctx);
var addDatabaseNode = new AddDatabaseNodeOperation(store.Database);
await store.Maintenance.Server.SendAsync(addDatabaseNode);
await WaitAndAssertForValueAsync(() => GetMembersCount(store), 2);
}
database = await server2.ServerStore.DatabasesLandlord.TryGetOrCreateResourceStore(store.Database);
var state = database.SubscriptionStorage.GetSubscriptionFromServerStore(sub);
using (server2.ServerStore.Engine.ContextPool.AllocateOperationContext(out ClusterOperationContext context))
using (context.OpenReadTransaction())
{
Assert.Single(SubscriptionStorage.GetResendItems(context, store.Database, state.SubscriptionId));
}
waitForBatch.Set();
}
}