public Task Stats()
{
using (ContextPool.AllocateOperationContext(out DocumentsOperationContext context))
using (var writer = new BlittableJsonTextWriter(context, ResponseBodyStream()))
using (context.OpenReadTransaction())
{
var indexes = Database.IndexStore.GetIndexes().ToList();
var sizeOnDiskInBytes = Database.GetSizeOnDiskInBytes();
var stats = new DatabaseStatistics
{
LastDocEtag = DocumentsStorage.ReadLastDocumentEtag(context.Transaction.InnerTransaction),
CountOfDocuments = Database.DocumentsStorage.GetNumberOfDocuments(context),
CountOfRevisionDocuments = Database.DocumentsStorage.RevisionsStorage.GetNumberOfRevisionDocuments(context),
CountOfDocumentsConflicts = Database.DocumentsStorage.ConflictsStorage.GetNumberOfDocumentsConflicts(context),
CountOfTombstones = Database.DocumentsStorage.GetNumberOfTombstones(context),
CountOfConflicts = Database.DocumentsStorage.ConflictsStorage.ConflictsCount,
SizeOnDisk = new Size(sizeOnDiskInBytes)
};
var attachments = Database.DocumentsStorage.AttachmentsStorage.GetNumberOfAttachments(context);
stats.CountOfAttachments = attachments.AttachmentCount;
stats.CountOfUniqueAttachments = attachments.StreamsCount;
stats.CountOfIndexes = indexes.Count;
var statsDatabaseChangeVector = DocumentsStorage.GetDatabaseChangeVector(context);
stats.DatabaseChangeVector = statsDatabaseChangeVector;
stats.DatabaseId = Database.DocumentsStorage.Environment.Base64Id;
stats.Is64Bit = !Database.DocumentsStorage.Environment.Options.ForceUsing32BitsPager && IntPtr.Size == sizeof(long);
stats.Pager = Database.DocumentsStorage.Environment.Options.DataPager.GetType().ToString();
stats.Indexes = new IndexInformation[indexes.Count];
for (var i = 0; i < indexes.Count; i++)
{
var index = indexes[i];
bool isStale;
try
{
isStale = index.IsStale(context);
}
catch (OperationCanceledException)
{
// if the index has just been removed, let us consider it stale
// until it can be safely removed from the list of indexes in the
// database
isStale = true;
}
stats.Indexes[i] = new IndexInformation
{
State = index.State,
IsStale = isStale,
Name = index.Name,
LockMode = index.Definition.LockMode,
Priority = index.Definition.Priority,
Type = index.Type,
LastIndexingTime = index.LastIndexingTime
};
if (stats.LastIndexingTime.HasValue)
{
stats.LastIndexingTime = stats.LastIndexingTime >= index.LastIndexingTime ? stats.LastIndexingTime : index.LastIndexingTime;
}
else
{
stats.LastIndexingTime = index.LastIndexingTime;
}
}
writer.WriteDatabaseStatistics(context, stats);
}
return(Task.CompletedTask);
}