public async Task TestSplitAsync()
{
int numItems = 100;
IDocumentContainer documentContainer = await this.CreateDocumentContainerAsync(numItems);
IAsyncEnumerator <TryCatch <QueryPage> > enumerator = this.CreateEnumerator(documentContainer);
(HashSet <string> parentIdentifiers, QueryState state) = await this.PartialDrainAsync(enumerator, numIterations : 3);
// Split the partition
await documentContainer.SplitAsync(new FeedRangePartitionKeyRange("0"), cancellationToken : default);
// Try To read from the partition that is gone.
await enumerator.MoveNextAsync();
Assert.IsTrue(enumerator.Current.Failed);
// Resume on the children using the parent continuaiton token
HashSet <string> childIdentifiers = new HashSet <string>();
await documentContainer.RefreshProviderAsync(NoOpTrace.Singleton, cancellationToken : default);
List <FeedRangeEpk> ranges = await documentContainer.GetFeedRangesAsync(
trace : NoOpTrace.Singleton,
cancellationToken : default);
public async Task TestSplitAsync()
{
int numItems = 100;
IDocumentContainer inMemoryCollection = await this.CreateDocumentContainerAsync(numItems);
IAsyncEnumerator <TryCatch <ReadFeedPage> > enumerator = this.CreateEnumerator(inMemoryCollection);
(HashSet <string> parentIdentifiers, ReadFeedState state) = await this.PartialDrainAsync(enumerator, numIterations : 3);
// Split the partition
await inMemoryCollection.SplitAsync(new FeedRangePartitionKeyRange(partitionKeyRangeId : "0"), cancellationToken : default);
// Try To read from the partition that is gone.
await enumerator.MoveNextAsync();
Assert.IsTrue(enumerator.Current.Failed);
// Resume on the children using the parent continuaiton token
HashSet <string> childIdentifiers = new HashSet <string>();
foreach (int partitionKeyRangeId in new int[] { 1, 2 })
{
PartitionRangePageAsyncEnumerable <ReadFeedPage, ReadFeedState> enumerable = new PartitionRangePageAsyncEnumerable <ReadFeedPage, ReadFeedState>(
range: new FeedRangePartitionKeyRange(partitionKeyRangeId: partitionKeyRangeId.ToString()),
state: state,
(range, state) => new ReadFeedPartitionRangeEnumerator(
inMemoryCollection,
feedRange: range,
pageSize: 10,
queryRequestOptions: default,
public async Task TestSplitAsync(bool aggressivePrefetch, bool exercisePrefetch)
{
int numItems = 100;
IDocumentContainer inMemoryCollection = await this.CreateDocumentContainerAsync(numItems);
IAsyncEnumerator <TryCatch <ReadFeedPage> > enumerator = await this.CreateEnumeratorAsync(inMemoryCollection, aggressivePrefetch, exercisePrefetch);
(HashSet <string> parentIdentifiers, ReadFeedState state) = await this.PartialDrainAsync(enumerator, numIterations : 3);
// Split the partition
await inMemoryCollection.SplitAsync(new FeedRangePartitionKeyRange(partitionKeyRangeId : "0"), cancellationToken : default);
// Try To read from the partition that is gone.
await enumerator.MoveNextAsync();
Assert.IsTrue((aggressivePrefetch && exercisePrefetch) || enumerator.Current.Failed);
// Resume on the children using the parent continuation token
HashSet <string> childIdentifiers = new HashSet <string>();
foreach (int partitionKeyRangeId in new int[] { 1, 2 })
{
PartitionRangePageAsyncEnumerable <ReadFeedPage, ReadFeedState> enumerable = new PartitionRangePageAsyncEnumerable <ReadFeedPage, ReadFeedState>(
feedRangeState: new FeedRangeState <ReadFeedState>(
new FeedRangePartitionKeyRange(partitionKeyRangeId: partitionKeyRangeId.ToString()),
state),
(feedRangeState) => new ReadFeedPartitionRangeEnumerator(
inMemoryCollection,
feedRangeState: feedRangeState,
readFeedPaginationOptions: new ReadFeedPaginationOptions(pageSizeHint: 10),
cancellationToken: default),
trace: NoOpTrace.Singleton);
HashSet <string> resourceIdentifiers = await this.DrainFullyAsync(enumerable);
childIdentifiers.UnionWith(resourceIdentifiers);
}
Assert.AreEqual(numItems, parentIdentifiers.Count + childIdentifiers.Count);
}