public override IndexingPerformanceStats IndexDocuments(AbstractViewGenerator viewGenerator, IndexingBatch batch, IStorageActionsAccessor actions, DateTime minimumTimestamp, CancellationToken token)
{
token.ThrowIfCancellationRequested();
var count = 0;
var sourceCount = 0;
var writeToIndexStats = new List <PerformanceStats>();
IndexingPerformanceStats performance = null;
var performanceStats = new List <BasePerformanceStats>();
var storageCommitDuration = new Stopwatch();
actions.BeforeStorageCommit += storageCommitDuration.Start;
actions.AfterStorageCommit += () =>
{
storageCommitDuration.Stop();
performanceStats.Add(PerformanceStats.From(IndexingOperation.StorageCommit, storageCommitDuration.ElapsedMilliseconds));
};
Write((indexWriter, analyzer, stats) =>
{
var processedKeys = new HashSet <string>();
var batchers = context.IndexUpdateTriggers.Select(x => x.CreateBatcher(indexId))
.Where(x => x != null)
.ToList();
try
{
performance = RecordCurrentBatch("Current", "Index", batch.Docs.Count);
var deleteExistingDocumentsDuration = new Stopwatch();
Interlocked.Increment(ref sourceCount);
var docIdTerm = new Term(Constants.DocumentIdFieldName);
var documentsWrapped = batch.Docs.Select((doc, i) =>
{
token.ThrowIfCancellationRequested();
if (doc.__document_id == null)
{
throw new ArgumentException(
string.Format("Cannot index something which doesn't have a document id, but got: '{0}'", doc));
}
string documentId = doc.__document_id.ToString();
if (processedKeys.Add(documentId) == false)
{
return(doc);
}
InvokeOnIndexEntryDeletedOnAllBatchers(batchers, docIdTerm.CreateTerm(documentId.ToLowerInvariant()));
if (batch.SkipDeleteFromIndex[i] == false ||
context.ShouldRemoveFromIndex(documentId)) // maybe it is recently deleted?
{
using (StopwatchScope.For(deleteExistingDocumentsDuration))
{
indexWriter.DeleteDocuments(docIdTerm.CreateTerm(documentId.ToLowerInvariant()));
}
}
return(doc);
})
.Where(x => x is FilteredDocument == false)
.ToList();
performanceStats.Add(new PerformanceStats
{
Name = IndexingOperation.Lucene_DeleteExistingDocument,
DurationMs = deleteExistingDocumentsDuration.ElapsedMilliseconds
});
var allReferencedDocs = new ConcurrentQueue <IDictionary <string, HashSet <string> > >();
var allReferenceEtags = new ConcurrentQueue <IDictionary <string, Etag> >();
var parallelOperations = new ConcurrentQueue <ParallelBatchStats>();
var parallelProcessingStart = SystemTime.UtcNow;
context.Database.MappingThreadPool.ExecuteBatch(documentsWrapped, (IEnumerator <dynamic> partition) =>
{
token.ThrowIfCancellationRequested();
var parallelStats = new ParallelBatchStats
{
StartDelay = (long)(SystemTime.UtcNow - parallelProcessingStart).TotalMilliseconds
};
var anonymousObjectToLuceneDocumentConverter = new AnonymousObjectToLuceneDocumentConverter(context.Database, indexDefinition, viewGenerator, logIndexing);
var luceneDoc = new Document();
var documentIdField = new Field(Constants.DocumentIdFieldName, "dummy", Field.Store.YES,
Field.Index.NOT_ANALYZED_NO_NORMS);
using (CurrentIndexingScope.Current = new CurrentIndexingScope(context.Database, PublicName))
{
string currentDocId = null;
int outputPerDocId = 0;
Action <Exception, object> onErrorFunc;
bool skipDocument = false;
var linqExecutionDuration = new Stopwatch();
var addDocumentDutation = new Stopwatch();
var convertToLuceneDocumentDuration = new Stopwatch();
foreach (var doc in RobustEnumerationIndex(partition, viewGenerator.MapDefinitions, stats, out onErrorFunc, linqExecutionDuration))
{
token.ThrowIfCancellationRequested();
float boost;
IndexingResult indexingResult;
using (StopwatchScope.For(convertToLuceneDocumentDuration))
{
try
{
indexingResult = GetIndexingResult(doc, anonymousObjectToLuceneDocumentConverter, out boost);
}
catch (Exception e)
{
onErrorFunc(e, doc);
continue;
}
}
// ReSharper disable once RedundantBoolCompare --> code clarity
if (indexingResult.NewDocId == null || indexingResult.ShouldSkip != false)
{
continue;
}
if (currentDocId != indexingResult.NewDocId)
{
currentDocId = indexingResult.NewDocId;
outputPerDocId = 0;
skipDocument = false;
}
if (skipDocument)
{
continue;
}
outputPerDocId++;
if (EnsureValidNumberOfOutputsForDocument(currentDocId, outputPerDocId) == false)
{
skipDocument = true;
continue;
}
Interlocked.Increment(ref count);
using (StopwatchScope.For(convertToLuceneDocumentDuration))
{
luceneDoc.GetFields().Clear();
luceneDoc.Boost = boost;
documentIdField.SetValue(indexingResult.NewDocId.ToLowerInvariant());
luceneDoc.Add(documentIdField);
foreach (var field in indexingResult.Fields)
{
luceneDoc.Add(field);
}
}
batchers.ApplyAndIgnoreAllErrors(
exception =>
{
logIndexing.WarnException(
string.Format(
"Error when executed OnIndexEntryCreated trigger for index '{0}', key: '{1}'",
PublicName, indexingResult.NewDocId),
exception);
context.AddError(
indexId,
PublicName,
indexingResult.NewDocId,
exception,
"OnIndexEntryCreated Trigger");
},
trigger => trigger.OnIndexEntryCreated(indexingResult.NewDocId, luceneDoc));
LogIndexedDocument(indexingResult.NewDocId, luceneDoc);
using (StopwatchScope.For(addDocumentDutation))
{
AddDocumentToIndex(indexWriter, luceneDoc, analyzer);
}
Interlocked.Increment(ref stats.IndexingSuccesses);
}
allReferenceEtags.Enqueue(CurrentIndexingScope.Current.ReferencesEtags);
allReferencedDocs.Enqueue(CurrentIndexingScope.Current.ReferencedDocuments);
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.LoadDocument, CurrentIndexingScope.Current.LoadDocumentDuration.ElapsedMilliseconds));
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Linq_MapExecution, linqExecutionDuration.ElapsedMilliseconds));
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Lucene_ConvertToLuceneDocument, convertToLuceneDocumentDuration.ElapsedMilliseconds));
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Lucene_AddDocument, addDocumentDutation.ElapsedMilliseconds));
parallelOperations.Enqueue(parallelStats);
}
}, description: string.Format("Mapping index {0} from Etag {1} to Etag {2}", this.PublicName, this.GetLastEtagFromStats(), batch.HighestEtagBeforeFiltering));
performanceStats.Add(new ParallelPerformanceStats
{
NumberOfThreads = parallelOperations.Count,
DurationMs = (long)(SystemTime.UtcNow - parallelProcessingStart).TotalMilliseconds,
BatchedOperations = parallelOperations.ToList()
});
var updateDocumentReferencesDuration = new Stopwatch();
using (StopwatchScope.For(updateDocumentReferencesDuration))
{
UpdateDocumentReferences(actions, allReferencedDocs, allReferenceEtags);
}
performanceStats.Add(PerformanceStats.From(IndexingOperation.UpdateDocumentReferences, updateDocumentReferencesDuration.ElapsedMilliseconds));
}
catch (Exception e)
{
batchers.ApplyAndIgnoreAllErrors(
ex =>
{
logIndexing.WarnException("Failed to notify index update trigger batcher about an error in " + PublicName, ex);
context.AddError(indexId, PublicName, null, ex, "AnErrorOccured Trigger");
},
x => x.AnErrorOccured(e));
throw;
}
finally
{
batchers.ApplyAndIgnoreAllErrors(
e =>
{
logIndexing.WarnException("Failed to dispose on index update trigger in " + PublicName, e);
context.AddError(indexId, PublicName, null, e, "Dispose Trigger");
},
x => x.Dispose());
}
return(new IndexedItemsInfo(batch.HighestEtagBeforeFiltering)
{
ChangedDocs = sourceCount
});
}, writeToIndexStats);
performanceStats.AddRange(writeToIndexStats);
InitializeIndexingPerformanceCompleteDelegate(performance, sourceCount, count, performanceStats);
if (logIndexing.IsDebugEnabled)
{
logIndexing.Debug("Indexed {0} documents for {1}", count, PublicName);
}
return(performance);
}
public override IndexingPerformanceStats IndexDocuments(AbstractViewGenerator viewGenerator, IndexingBatch batch, IStorageActionsAccessor actions, DateTime minimumTimestamp, CancellationToken token)
{
token.ThrowIfCancellationRequested();
var count = 0;
var sourceCount = 0;
var deleted = new Dictionary <ReduceKeyAndBucket, int>();
var performance = RecordCurrentBatch("Current Map", "Map", batch.Docs.Count);
var performanceStats = new List <BasePerformanceStats>();
var usedStorageAccessors = new ConcurrentSet <IStorageActionsAccessor>();
if (usedStorageAccessors.TryAdd(actions))
{
var storageCommitDuration = new Stopwatch();
actions.BeforeStorageCommit += storageCommitDuration.Start;
actions.AfterStorageCommit += () =>
{
storageCommitDuration.Stop();
performanceStats.Add(PerformanceStats.From(IndexingOperation.StorageCommit, storageCommitDuration.ElapsedMilliseconds));
};
}
var deleteMappedResultsDuration = new Stopwatch();
var documentsWrapped = batch.Docs.Select(doc =>
{
token.ThrowIfCancellationRequested();
sourceCount++;
var documentId = doc.__document_id;
using (StopwatchScope.For(deleteMappedResultsDuration))
{
actions.MapReduce.DeleteMappedResultsForDocumentId((string)documentId, indexId, deleted);
}
return(doc);
})
.Where(x => x is FilteredDocument == false)
.ToList();
performanceStats.Add(new PerformanceStats
{
Name = IndexingOperation.Map_DeleteMappedResults,
DurationMs = deleteMappedResultsDuration.ElapsedMilliseconds,
});
var allReferencedDocs = new ConcurrentQueue <IDictionary <string, HashSet <string> > >();
var allReferenceEtags = new ConcurrentQueue <IDictionary <string, Etag> >();
var allState = new ConcurrentQueue <Tuple <HashSet <ReduceKeyAndBucket>, IndexingWorkStats, Dictionary <string, int> > >();
var parallelOperations = new ConcurrentQueue <ParallelBatchStats>();
var parallelProcessingStart = SystemTime.UtcNow;
BackgroundTaskExecuter.Instance.ExecuteAllBuffered(context, documentsWrapped, partition =>
{
token.ThrowIfCancellationRequested();
var parallelStats = new ParallelBatchStats
{
StartDelay = (long)(SystemTime.UtcNow - parallelProcessingStart).TotalMilliseconds
};
var localStats = new IndexingWorkStats();
var localChanges = new HashSet <ReduceKeyAndBucket>();
var statsPerKey = new Dictionary <string, int>();
var linqExecutionDuration = new Stopwatch();
var reduceInMapLinqExecutionDuration = new Stopwatch();
var putMappedResultsDuration = new Stopwatch();
var convertToRavenJObjectDuration = new Stopwatch();
allState.Enqueue(Tuple.Create(localChanges, localStats, statsPerKey));
using (CurrentIndexingScope.Current = new CurrentIndexingScope(context.Database, PublicName))
{
// we are writing to the transactional store from multiple threads here, and in a streaming fashion
// should result in less memory and better perf
context.TransactionalStorage.Batch(accessor =>
{
if (usedStorageAccessors.TryAdd(accessor))
{
var storageCommitDuration = new Stopwatch();
accessor.BeforeStorageCommit += storageCommitDuration.Start;
accessor.AfterStorageCommit += () =>
{
storageCommitDuration.Stop();
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.StorageCommit, storageCommitDuration.ElapsedMilliseconds));
};
}
var mapResults = RobustEnumerationIndex(partition, viewGenerator.MapDefinitions, localStats, linqExecutionDuration);
var currentDocumentResults = new List <object>();
string currentKey = null;
bool skipDocument = false;
foreach (var currentDoc in mapResults)
{
token.ThrowIfCancellationRequested();
var documentId = GetDocumentId(currentDoc);
if (documentId != currentKey)
{
count += ProcessBatch(viewGenerator, currentDocumentResults, currentKey, localChanges, accessor, statsPerKey, reduceInMapLinqExecutionDuration, putMappedResultsDuration, convertToRavenJObjectDuration);
currentDocumentResults.Clear();
currentKey = documentId;
}
else if (skipDocument)
{
continue;
}
RavenJObject currentDocJObject;
using (StopwatchScope.For(convertToRavenJObjectDuration))
{
currentDocJObject = RavenJObject.FromObject(currentDoc, jsonSerializer);
}
currentDocumentResults.Add(new DynamicJsonObject(currentDocJObject));
if (EnsureValidNumberOfOutputsForDocument(documentId, currentDocumentResults.Count) == false)
{
skipDocument = true;
currentDocumentResults.Clear();
continue;
}
Interlocked.Increment(ref localStats.IndexingSuccesses);
}
count += ProcessBatch(viewGenerator, currentDocumentResults, currentKey, localChanges, accessor, statsPerKey, reduceInMapLinqExecutionDuration, putMappedResultsDuration, convertToRavenJObjectDuration);
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.LoadDocument, CurrentIndexingScope.Current.LoadDocumentDuration.ElapsedMilliseconds));
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Linq_MapExecution, linqExecutionDuration.ElapsedMilliseconds));
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Linq_ReduceLinqExecution, reduceInMapLinqExecutionDuration.ElapsedMilliseconds));
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Map_PutMappedResults, putMappedResultsDuration.ElapsedMilliseconds));
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Map_ConvertToRavenJObject, convertToRavenJObjectDuration.ElapsedMilliseconds));
parallelOperations.Enqueue(parallelStats);
});
allReferenceEtags.Enqueue(CurrentIndexingScope.Current.ReferencesEtags);
allReferencedDocs.Enqueue(CurrentIndexingScope.Current.ReferencedDocuments);
}
});
performanceStats.Add(new ParallelPerformanceStats
{
NumberOfThreads = parallelOperations.Count,
DurationMs = (long)(SystemTime.UtcNow - parallelProcessingStart).TotalMilliseconds,
BatchedOperations = parallelOperations.ToList()
});
var updateDocumentReferencesDuration = new Stopwatch();
using (StopwatchScope.For(updateDocumentReferencesDuration))
{
UpdateDocumentReferences(actions, allReferencedDocs, allReferenceEtags);
}
performanceStats.Add(PerformanceStats.From(IndexingOperation.UpdateDocumentReferences, updateDocumentReferencesDuration.ElapsedMilliseconds));
var changed = allState.SelectMany(x => x.Item1).Concat(deleted.Keys)
.Distinct()
.ToList();
var stats = new IndexingWorkStats(allState.Select(x => x.Item2));
var reduceKeyStats = allState.SelectMany(x => x.Item3)
.GroupBy(x => x.Key)
.Select(g => new { g.Key, Count = g.Sum(x => x.Value) })
.ToList();
BackgroundTaskExecuter.Instance.ExecuteAllBuffered(context, reduceKeyStats, enumerator => context.TransactionalStorage.Batch(accessor =>
{
while (enumerator.MoveNext())
{
var reduceKeyStat = enumerator.Current;
accessor.MapReduce.IncrementReduceKeyCounter(indexId, reduceKeyStat.Key, reduceKeyStat.Count);
}
}));
actions.General.MaybePulseTransaction();
var parallelReductionOperations = new ConcurrentQueue <ParallelBatchStats>();
var parallelReductionStart = SystemTime.UtcNow;
BackgroundTaskExecuter.Instance.ExecuteAllBuffered(context, changed, enumerator => context.TransactionalStorage.Batch(accessor =>
{
var parallelStats = new ParallelBatchStats
{
StartDelay = (long)(SystemTime.UtcNow - parallelReductionStart).TotalMilliseconds
};
var scheduleReductionsDuration = new Stopwatch();
using (StopwatchScope.For(scheduleReductionsDuration))
{
while (enumerator.MoveNext())
{
accessor.MapReduce.ScheduleReductions(indexId, 0, enumerator.Current);
accessor.General.MaybePulseTransaction();
}
}
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Map_ScheduleReductions, scheduleReductionsDuration.ElapsedMilliseconds));
parallelReductionOperations.Enqueue(parallelStats);
}));
performanceStats.Add(new ParallelPerformanceStats
{
NumberOfThreads = parallelReductionOperations.Count,
DurationMs = (long)(SystemTime.UtcNow - parallelReductionStart).TotalMilliseconds,
BatchedOperations = parallelReductionOperations.ToList()
});
UpdateIndexingStats(context, stats);
performance.OnCompleted = () => BatchCompleted("Current Map", "Map", sourceCount, count, performanceStats);
logIndexing.Debug("Mapped {0} documents for {1}", count, indexId);
return(performance);
}
private ReducingPerformanceStats SingleStepReduce(IndexToWorkOn index, List <string> keysToReduce, AbstractViewGenerator viewGenerator,
ConcurrentSet <object> itemsToDelete, CancellationToken token)
{
var needToMoveToSingleStepQueue = new ConcurrentQueue <HashSet <string> >();
if (Log.IsDebugEnabled)
{
Log.Debug(() => string.Format("Executing single step reducing for {0} keys [{1}]", keysToReduce.Count, string.Join(", ", keysToReduce)));
}
var batchTimeWatcher = Stopwatch.StartNew();
var reducingBatchThrottlerId = Guid.NewGuid();
var reducePerformanceStats = new ReducingPerformanceStats(ReduceType.SingleStep);
var reduceLevelStats = new ReduceLevelPeformanceStats
{
Started = SystemTime.UtcNow,
Level = 2
};
try
{
var parallelOperations = new ConcurrentQueue <ParallelBatchStats>();
var parallelProcessingStart = SystemTime.UtcNow;
BackgroundTaskExecuter.Instance.ExecuteAllBuffered(context, keysToReduce, enumerator =>
{
var parallelStats = new ParallelBatchStats
{
StartDelay = (long)(SystemTime.UtcNow - parallelProcessingStart).TotalMilliseconds
};
var localNeedToMoveToSingleStep = new HashSet <string>();
needToMoveToSingleStepQueue.Enqueue(localNeedToMoveToSingleStep);
var localKeys = new HashSet <string>();
while (enumerator.MoveNext())
{
token.ThrowIfCancellationRequested();
localKeys.Add(enumerator.Current);
}
transactionalStorage.Batch(actions =>
{
var getItemsToReduceParams = new GetItemsToReduceParams(index: index.IndexId, reduceKeys: new HashSet <string>(localKeys), level: 0, loadData: false, itemsToDelete: itemsToDelete)
{
Take = int.MaxValue // just get all, we do the rate limit when we load the number of keys to reduce, anyway
};
var getItemsToReduceDuration = Stopwatch.StartNew();
int scheduledItemsSum = 0;
int scheduledItemsCount = 0;
List <int> scheduledItemsMappedBuckets = new List <int>();
using (StopwatchScope.For(getItemsToReduceDuration))
{
foreach (var item in actions.MapReduce.GetItemsToReduce(getItemsToReduceParams, token))
{
scheduledItemsMappedBuckets.Add(item.Bucket);
scheduledItemsSum += item.Size;
scheduledItemsCount++;
}
}
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Reduce_GetItemsToReduce, getItemsToReduceDuration.ElapsedMilliseconds));
autoTuner.CurrentlyUsedBatchSizesInBytes.GetOrAdd(reducingBatchThrottlerId, scheduledItemsSum);
if (scheduledItemsCount == 0)
{
// Here we have an interesting issue. We have scheduled reductions, because GetReduceTypesPerKeys() returned them
// and at the same time, we don't have any at level 0. That probably means that we have them at level 1 or 2.
// They shouldn't be here, and indeed, we remove them just a little down from here in this function.
// That said, they might have smuggled in between versions, or something happened to cause them to be here.
// In order to avoid that, we forcibly delete those extra items from the scheduled reductions, and move on
Log.Warn("Found single reduce items ({0}) that didn't have any items to reduce. Deleting level 1 & level 2 items for those keys. (If you can reproduce this, please contact [email protected])", string.Join(", ", keysToReduce));
var deletingScheduledReductionsDuration = Stopwatch.StartNew();
using (StopwatchScope.For(deletingScheduledReductionsDuration))
{
foreach (var reduceKey in keysToReduce)
{
token.ThrowIfCancellationRequested();
actions.MapReduce.DeleteScheduledReduction(index.IndexId, 1, reduceKey);
actions.MapReduce.DeleteScheduledReduction(index.IndexId, 2, reduceKey);
}
}
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Reduce_DeleteScheduledReductions, deletingScheduledReductionsDuration.ElapsedMilliseconds));
}
var removeReduceResultsDuration = new Stopwatch();
foreach (var reduceKey in localKeys)
{
token.ThrowIfCancellationRequested();
var lastPerformedReduceType = actions.MapReduce.GetLastPerformedReduceType(index.IndexId, reduceKey);
if (lastPerformedReduceType != ReduceType.SingleStep)
{
localNeedToMoveToSingleStep.Add(reduceKey);
}
if (lastPerformedReduceType != ReduceType.MultiStep)
{
continue;
}
if (Log.IsDebugEnabled)
{
Log.Debug("Key {0} was moved from multi step to single step reduce, removing existing reduce results records", reduceKey);
}
using (StopwatchScope.For(removeReduceResultsDuration))
{
// now we are in single step but previously multi step reduce was performed for the given key
var mappedBuckets = actions.MapReduce.GetMappedBuckets(index.IndexId, reduceKey, token);
// add scheduled items too to be sure we will delete reduce results of already deleted documents
foreach (var mappedBucket in mappedBuckets.Union(scheduledItemsMappedBuckets))
{
actions.MapReduce.RemoveReduceResults(index.IndexId, 1, reduceKey, mappedBucket);
actions.MapReduce.RemoveReduceResults(index.IndexId, 2, reduceKey, mappedBucket / 1024);
}
}
}
parallelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Reduce_RemoveReduceResults, removeReduceResultsDuration.ElapsedMilliseconds));
parallelOperations.Enqueue(parallelStats);
});
});
reduceLevelStats.Operations.Add(new ParallelPerformanceStats
{
NumberOfThreads = parallelOperations.Count,
DurationMs = (long)(SystemTime.UtcNow - parallelProcessingStart).TotalMilliseconds,
BatchedOperations = parallelOperations.ToList()
});
var getMappedResultsDuration = new Stopwatch();
var reductionPerformanceStats = new List <IndexingPerformanceStats>();
var keysLeftToReduce = new HashSet <string>(keysToReduce);
while (keysLeftToReduce.Count > 0)
{
var keysReturned = new HashSet <string>();
// Try to diminish the allocations happening because of .Resize()
var mappedResults = new List <MappedResultInfo>(keysLeftToReduce.Count);
context.TransactionalStorage.Batch(actions =>
{
var take = context.CurrentNumberOfItemsToReduceInSingleBatch;
using (StopwatchScope.For(getMappedResultsDuration))
{
mappedResults = actions.MapReduce.GetMappedResults(index.IndexId, keysLeftToReduce, true, take, keysReturned, token, mappedResults);
}
});
var count = mappedResults.Count;
int size = 0;
foreach (var item in mappedResults)
{
item.Bucket = 0;
size += item.Size;
}
var results = mappedResults.GroupBy(x => x.Bucket, x => JsonToExpando.Convert(x.Data)).ToArray();
context.MetricsCounters.ReducedPerSecond.Mark(results.Length);
token.ThrowIfCancellationRequested();
var performance = context.IndexStorage.Reduce(index.IndexId, viewGenerator, results, 2, context, null, keysReturned, count);
reductionPerformanceStats.Add(performance);
autoTuner.AutoThrottleBatchSize(count, size, batchTimeWatcher.Elapsed);
}
var needToMoveToSingleStep = new HashSet <string>();
HashSet <string> set;
while (needToMoveToSingleStepQueue.TryDequeue(out set))
{
needToMoveToSingleStep.UnionWith(set);
}
foreach (var reduceKey in needToMoveToSingleStep)
{
string localReduceKey = reduceKey;
transactionalStorage.Batch(actions =>
actions.MapReduce.UpdatePerformedReduceType(index.IndexId, localReduceKey, ReduceType.SingleStep));
}
reduceLevelStats.Completed = SystemTime.UtcNow;
reduceLevelStats.Duration = reduceLevelStats.Completed - reduceLevelStats.Started;
reduceLevelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Reduce_GetMappedResults, getMappedResultsDuration.ElapsedMilliseconds));
reduceLevelStats.Operations.Add(PerformanceStats.From(IndexingOperation.StorageCommit, 0)); // in single step we write directly to Lucene index
foreach (var stats in reductionPerformanceStats)
{
reduceLevelStats.Add(stats);
}
reducePerformanceStats.LevelStats.Add(reduceLevelStats);
}
finally
{
long _;
autoTuner.CurrentlyUsedBatchSizesInBytes.TryRemove(reducingBatchThrottlerId, out _);
}
return(reducePerformanceStats);
}
