private void IndexDocuments(IStorageActionsAccessor actions, string index, JsonDocument[] jsonDocs)
{
var viewGenerator = context.IndexDefinitionStorage.GetViewGenerator(index);
if (viewGenerator == null)
{
return; // index was deleted, probably
}
var dateTime = jsonDocs.Min(x => x.LastModified);
var documentRetriever = new DocumentRetriever(null, context.ReadTriggers);
try
{
log.DebugFormat("Indexing {0} documents for index: {1}", jsonDocs.Length, index);
context.IndexStorage.Index(index, viewGenerator,
jsonDocs
.Select(doc => documentRetriever
.ExecuteReadTriggers(doc, null, ReadOperation.Index))
.Where(doc => doc != null)
.Select(x => JsonToExpando.Convert(x.ToJson())), context, actions, dateTime);
}
catch (Exception e)
{
if (actions.IsWriteConflict(e))
{
return;
}
log.WarnFormat(e, "Failed to index documents for index: {0}", index);
}
}
public override void Execute(WorkContext context)
{
var viewGenerator = context.IndexDefinitionStorage.GetViewGenerator(Index);
if (viewGenerator == null)
{
return; // index was deleted, probably
}
context.TransactionaStorage.Batch(actions =>
{
var docsToIndex = actions.Documents.DocumentsById(FromId, ToId)
.Select(d => d.Item1)
.Where(x => x != null)
.Select(s => JsonToExpando.Convert(s.ToJson()));
context.IndexStorage.Index(Index, viewGenerator, docsToIndex, context, actions);
});
}
public override void Execute(WorkContext context)
{
context.TransactionaStorage.Batch(actions =>
{
var jsonDocuments = Keys.Select(key => actions.DocumentByKey(key, null))
.Where(x => x != null)
.Select(x => JsonToExpando.Convert(x.ToJson()))
.ToArray();
var keysAsString = string.Join(", ", Keys);
var viewGenerator = context.IndexDefinitionStorage.GetViewGenerator(Index);
if (viewGenerator == null)
{
return; // index was deleted, probably
}
try
{
logger.DebugFormat("Indexing documents: [{0}] for index: {1}", keysAsString, Index);
var failureRate = actions.GetFailureRate(Index);
if (failureRate.IsInvalidIndex)
{
logger.InfoFormat("Skipped indexing documents: [{0}] for index: {1} because failure rate is too high: {2}",
keysAsString, Index,
failureRate.FailureRate);
return;
}
context.IndexStorage.Index(Index, viewGenerator, jsonDocuments,
context, actions);
}
catch (Exception e)
{
logger.WarnFormat(e, "Failed to index document [{0}] for index: {1}", keysAsString, Index);
}
});
}
private IEnumerable <IndexingBatchForIndex> FilterIndexes(IList <IndexToWorkOn> indexesToWorkOn, List <JsonDocument> jsonDocs, Etag highestETagInBatch)
{
var last = jsonDocs.Last();
Debug.Assert(last.Etag != null);
Debug.Assert(last.LastModified != null);
var lastEtag = last.Etag;
var lastModified = last.LastModified.Value;
var documentRetriever = new DocumentRetriever(null, null, context.ReadTriggers, context.Database.InFlightTransactionalState);
var filteredDocs =
BackgroundTaskExecuter.Instance.Apply(context, jsonDocs, doc =>
{
var filteredDoc = documentRetriever.ExecuteReadTriggers(doc, null, ReadOperation.Index);
return(filteredDoc == null ? new
{
Doc = doc,
Json = (object)new FilteredDocument(doc)
} : new
{
Doc = filteredDoc,
Json = JsonToExpando.Convert(doc.ToJson())
});
});
Log.Debug("After read triggers executed, {0} documents remained", filteredDocs.Count);
var results = new IndexingBatchForIndex[indexesToWorkOn.Count];
var actions = new Action <IStorageActionsAccessor> [indexesToWorkOn.Count];
BackgroundTaskExecuter.Instance.ExecuteAll(context, indexesToWorkOn, (indexToWorkOn, i) =>
{
var indexName = indexToWorkOn.Index.PublicName;
var viewGenerator = context.IndexDefinitionStorage.GetViewGenerator(indexName);
if (viewGenerator == null)
{
return; // probably deleted
}
var batch = new IndexingBatch(highestETagInBatch);
foreach (var item in filteredDocs)
{
if (defaultPrefetchingBehavior.FilterDocuments(item.Doc) == false)
{
continue;
}
// did we already indexed this document in this index?
var etag = item.Doc.Etag;
if (etag == null)
{
continue;
}
// is the Raven-Entity-Name a match for the things the index executes on?
if (viewGenerator.ForEntityNames.Count != 0 &&
viewGenerator.ForEntityNames.Contains(item.Doc.Metadata.Value <string>(Constants.RavenEntityName)) == false)
{
continue;
}
batch.Add(item.Doc, item.Json, defaultPrefetchingBehavior.ShouldSkipDeleteFromIndex(item.Doc));
if (batch.DateTime == null)
{
batch.DateTime = item.Doc.LastModified;
}
else
{
batch.DateTime = batch.DateTime > item.Doc.LastModified
? item.Doc.LastModified
: batch.DateTime;
}
}
if (batch.Docs.Count == 0)
{
Log.Debug("All documents have been filtered for {0}, no indexing will be performed, updating to {1}, {2}", indexName,
lastEtag, lastModified);
// we use it this way to batch all the updates together
actions[i] = accessor =>
{
accessor.Indexing.UpdateLastIndexed(indexToWorkOn.Index.indexId, lastEtag, lastModified);
accessor.AfterStorageCommit += () =>
{
indexToWorkOn.Index.EnsureIndexWriter();
indexToWorkOn.Index.Flush(lastEtag);
};
};
return;
}
if (Log.IsDebugEnabled)
{
Log.Debug("Going to index {0} documents in {1}: ({2})", batch.Ids.Count, indexToWorkOn, string.Join(", ", batch.Ids));
}
results[i] = new IndexingBatchForIndex
{
Batch = batch,
IndexId = indexToWorkOn.IndexId,
Index = indexToWorkOn.Index,
LastIndexedEtag = indexToWorkOn.LastIndexedEtag
};
});
transactionalStorage.Batch(actionsAccessor =>
{
foreach (var action in actions)
{
if (action != null)
{
action(actionsAccessor);
}
}
});
return(results.Where(x => x != null));
}
public static dynamic GetDocumentFromString(string json)
{
return(JsonToExpando.Convert(RavenJObject.Parse(json)));
}
protected void HandleReduceForIndex(IndexToWorkOn indexToWorkOn)
{
var viewGenerator = context.IndexDefinitionStorage.GetViewGenerator(indexToWorkOn.IndexName);
if (viewGenerator == null)
{
return;
}
TimeSpan reduceDuration = TimeSpan.Zero;
int totalCount = 0;
int totalSize = 0;
bool operationCanceled = false;
var itemsToDelete = new List <object>();
try
{
var sw = Stopwatch.StartNew();
for (int i = 0; i < 3; i++)
{
var level = i;
transactionalStorage.Batch(actions =>
{
context.CancellationToken.ThrowIfCancellationRequested();
var sp = Stopwatch.StartNew();
var persistedResults = actions.MapReduce.GetItemsToReduce
(
take: context.CurrentNumberOfItemsToReduceInSingleBatch,
level: level,
index: indexToWorkOn.IndexName,
itemsToDelete: itemsToDelete
)
.ToList();
totalCount += persistedResults.Count;
totalSize += persistedResults.Sum(x => x.Size);
if (Log.IsDebugEnabled)
{
if (persistedResults.Count > 0)
{
Log.Debug(() => string.Format("Found {0} results for keys [{1}] for index {2} at level {3} in {4}",
persistedResults.Count, string.Join(", ", persistedResults.Select(x => x.ReduceKey).Distinct()), indexToWorkOn.IndexName, level, sp.Elapsed));
}
else
{
Log.Debug("No reduce keys found for {0}", indexToWorkOn.IndexName);
}
}
context.CancellationToken.ThrowIfCancellationRequested();
var requiredReduceNextTime = persistedResults.Select(x => new ReduceKeyAndBucket(x.Bucket, x.ReduceKey)).Distinct().ToArray();
foreach (var mappedResultInfo in requiredReduceNextTime)
{
actions.MapReduce.RemoveReduceResults(indexToWorkOn.IndexName, level + 1, mappedResultInfo.ReduceKey, mappedResultInfo.Bucket);
}
if (level != 2)
{
var reduceKeysAndBukcets = requiredReduceNextTime
.Select(x => new ReduceKeyAndBucket(x.Bucket / 1024, x.ReduceKey))
.Distinct()
.ToArray();
actions.MapReduce.ScheduleReductions(indexToWorkOn.IndexName, level + 1, reduceKeysAndBukcets);
}
var results = persistedResults
.Where(x => x.Data != null)
.GroupBy(x => x.Bucket, x => JsonToExpando.Convert(x.Data))
.ToArray();
var reduceKeys = new HashSet <string>(persistedResults.Select(x => x.ReduceKey),
StringComparer.InvariantCultureIgnoreCase);
context.ReducedPerSecIncreaseBy(results.Length);
context.CancellationToken.ThrowIfCancellationRequested();
sp = Stopwatch.StartNew();
context.IndexStorage.Reduce(indexToWorkOn.IndexName, viewGenerator, results, level, context, actions, reduceKeys);
Log.Debug("Indexed {0} reduce keys in {1} with {2} results for index {3} in {4}", reduceKeys.Count, sp.Elapsed,
results.Length, indexToWorkOn.IndexName, sp.Elapsed);
});
}
reduceDuration = sw.Elapsed;
}
catch (OperationCanceledException)
{
operationCanceled = true;
}
finally
{
if (operationCanceled == false)
{
// whatever we succeeded in indexing or not, we have to update this
// because otherwise we keep trying to re-index failed mapped results
transactionalStorage.Batch(actions =>
{
var latest = actions.MapReduce.DeleteScheduledReduction(itemsToDelete);
if (latest == null)
{
return;
}
actions.Indexing.UpdateLastReduced(indexToWorkOn.IndexName, latest.Etag, latest.Timestamp);
});
autoTuner.AutoThrottleBatchSize(totalCount, totalSize, reduceDuration);
}
}
}
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);
}
private ReducingPerformanceStats MultiStepReduce(IndexToWorkOn index, List <string> keysToReduce, AbstractViewGenerator viewGenerator, ConcurrentSet <object> itemsToDelete, CancellationToken token)
{
var needToMoveToMultiStep = new HashSet <string>();
transactionalStorage.Batch(actions =>
{
foreach (var localReduceKey in keysToReduce)
{
token.ThrowIfCancellationRequested();
var lastPerformedReduceType = actions.MapReduce.GetLastPerformedReduceType(index.IndexId, localReduceKey);
if (lastPerformedReduceType != ReduceType.MultiStep)
{
needToMoveToMultiStep.Add(localReduceKey);
}
if (lastPerformedReduceType != ReduceType.SingleStep)
{
continue;
}
// we exceeded the limit of items to reduce in single step
// now we need to schedule reductions at level 0 for all map results with given reduce key
var mappedItems = actions.MapReduce.GetMappedBuckets(index.IndexId, localReduceKey, token).ToList();
foreach (var result in mappedItems.Select(x => new ReduceKeyAndBucket(x, localReduceKey)))
{
actions.MapReduce.ScheduleReductions(index.IndexId, 0, result);
}
}
});
var reducePerformance = new ReducingPerformanceStats(ReduceType.MultiStep);
for (int i = 0; i < 3; i++)
{
var level = i;
var reduceLevelStats = new ReduceLevelPeformanceStats()
{
Level = level,
Started = SystemTime.UtcNow,
};
var reduceParams = new GetItemsToReduceParams(
index.IndexId,
new HashSet <string>(keysToReduce),
level,
true,
itemsToDelete);
var gettingItemsToReduceDuration = new Stopwatch();
var scheduleReductionsDuration = new Stopwatch();
var removeReduceResultsDuration = new Stopwatch();
var storageCommitDuration = new Stopwatch();
bool retry = true;
while (retry && reduceParams.ReduceKeys.Count > 0)
{
var reduceBatchAutoThrottlerId = Guid.NewGuid();
try
{
transactionalStorage.Batch(actions =>
{
token.ThrowIfCancellationRequested();
actions.BeforeStorageCommit += storageCommitDuration.Start;
actions.AfterStorageCommit += storageCommitDuration.Stop;
var batchTimeWatcher = Stopwatch.StartNew();
reduceParams.Take = context.CurrentNumberOfItemsToReduceInSingleBatch;
int size = 0;
IList <MappedResultInfo> persistedResults;
var reduceKeys = new HashSet <string>(StringComparer.InvariantCultureIgnoreCase);
using (StopwatchScope.For(gettingItemsToReduceDuration))
{
persistedResults = actions.MapReduce.GetItemsToReduce(reduceParams, token);
foreach (var item in persistedResults)
{
reduceKeys.Add(item.ReduceKey);
size += item.Size;
}
}
if (persistedResults.Count == 0)
{
retry = false;
return;
}
var count = persistedResults.Count;
autoTuner.CurrentlyUsedBatchSizesInBytes.GetOrAdd(reduceBatchAutoThrottlerId, size);
if (Log.IsDebugEnabled)
{
if (persistedResults.Count > 0)
{
Log.Debug(() => string.Format("Found {0} results for keys [{1}] for index {2} at level {3} in {4}",
persistedResults.Count,
string.Join(", ", persistedResults.Select(x => x.ReduceKey).Distinct()),
index.Index.PublicName, level, batchTimeWatcher.Elapsed));
}
else
{
Log.Debug("No reduce keys found for {0}", index.Index.PublicName);
}
}
token.ThrowIfCancellationRequested();
var requiredReduceNextTimeSet = new HashSet <ReduceKeyAndBucket>(persistedResults.Select(x => new ReduceKeyAndBucket(x.Bucket, x.ReduceKey)), ReduceKeyAndBucketEqualityComparer.Instance);
using (StopwatchScope.For(removeReduceResultsDuration))
{
foreach (var mappedResultInfo in requiredReduceNextTimeSet)
{
token.ThrowIfCancellationRequested();
actions.MapReduce.RemoveReduceResults(index.IndexId, level + 1, mappedResultInfo.ReduceKey, mappedResultInfo.Bucket);
}
}
if (level != 2)
{
var reduceKeysAndBucketsSet = new HashSet <ReduceKeyAndBucket>(requiredReduceNextTimeSet.Select(x => new ReduceKeyAndBucket(x.Bucket / 1024, x.ReduceKey)), ReduceKeyAndBucketEqualityComparer.Instance);
using (StopwatchScope.For(scheduleReductionsDuration))
{
foreach (var reduceKeysAndBucket in reduceKeysAndBucketsSet)
{
token.ThrowIfCancellationRequested();
actions.MapReduce.ScheduleReductions(index.IndexId, level + 1, reduceKeysAndBucket);
}
}
}
token.ThrowIfCancellationRequested();
var reduceTimeWatcher = Stopwatch.StartNew();
var results = persistedResults.Where(x => x.Data != null)
.GroupBy(x => x.Bucket, x => JsonToExpando.Convert(x.Data))
.ToList();
var performance = context.IndexStorage.Reduce(index.IndexId, viewGenerator, results, level, context, actions, reduceKeys, persistedResults.Count);
context.MetricsCounters.ReducedPerSecond.Mark(results.Count());
reduceLevelStats.Add(performance);
var batchDuration = batchTimeWatcher.Elapsed;
if (Log.IsDebugEnabled)
{
Log.Debug("Indexed {0} reduce keys in {1} with {2} results for index {3} in {4} on level {5}", reduceKeys.Count, batchDuration, performance.ItemsCount, index.Index.PublicName, reduceTimeWatcher.Elapsed, level);
}
autoTuner.AutoThrottleBatchSize(count, size, batchDuration);
});
}
finally
{
long _;
autoTuner.CurrentlyUsedBatchSizesInBytes.TryRemove(reduceBatchAutoThrottlerId, out _);
}
}
reduceLevelStats.Completed = SystemTime.UtcNow;
reduceLevelStats.Duration = reduceLevelStats.Completed - reduceLevelStats.Started;
reduceLevelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Reduce_GetItemsToReduce, gettingItemsToReduceDuration.ElapsedMilliseconds));
reduceLevelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Reduce_ScheduleReductions, scheduleReductionsDuration.ElapsedMilliseconds));
reduceLevelStats.Operations.Add(PerformanceStats.From(IndexingOperation.Reduce_RemoveReduceResults, removeReduceResultsDuration.ElapsedMilliseconds));
reduceLevelStats.Operations.Add(PerformanceStats.From(IndexingOperation.StorageCommit, storageCommitDuration.ElapsedMilliseconds));
reducePerformance.LevelStats.Add(reduceLevelStats);
}
foreach (var reduceKey in needToMoveToMultiStep)
{
token.ThrowIfCancellationRequested();
string localReduceKey = reduceKey;
transactionalStorage.Batch(actions =>
actions.MapReduce.UpdatePerformedReduceType(index.IndexId, localReduceKey,
ReduceType.MultiStep));
}
return(reducePerformance);
}
private void MultiStepReduce(IndexToWorkOn index, string[] keysToReduce, AbstractViewGenerator viewGenerator, ConcurrentSet <object> itemsToDelete)
{
var needToMoveToMultiStep = new HashSet <string>();
transactionalStorage.Batch(actions =>
{
foreach (var localReduceKey in keysToReduce)
{
var lastPerformedReduceType = actions.MapReduce.GetLastPerformedReduceType(index.IndexName, localReduceKey);
if (lastPerformedReduceType != ReduceType.MultiStep)
{
needToMoveToMultiStep.Add(localReduceKey);
}
if (lastPerformedReduceType != ReduceType.SingleStep)
{
continue;
}
// we exceeded the limit of items to reduce in single step
// now we need to schedule reductions at level 0 for all map results with given reduce key
var mappedItems = actions.MapReduce.GetMappedBuckets(index.IndexName, localReduceKey).ToList();
foreach (var result in mappedItems.Select(x => new ReduceKeyAndBucket(x, localReduceKey)))
{
actions.MapReduce.ScheduleReductions(index.IndexName, 0, result);
}
}
});
for (int i = 0; i < 3; i++)
{
var level = i;
var reduceParams = new GetItemsToReduceParams(
index.IndexName,
keysToReduce,
level,
true,
itemsToDelete);
bool retry = true;
while (retry && reduceParams.ReduceKeys.Count > 0)
{
var reduceBatchAutoThrottlerId = Guid.NewGuid();
try
{
transactionalStorage.Batch(actions =>
{
context.CancellationToken.ThrowIfCancellationRequested();
var batchTimeWatcher = Stopwatch.StartNew();
reduceParams.Take = context.CurrentNumberOfItemsToReduceInSingleBatch;
var persistedResults = actions.MapReduce.GetItemsToReduce(reduceParams).ToList();
if (persistedResults.Count == 0)
{
retry = false;
return;
}
var count = persistedResults.Count;
var size = persistedResults.Sum(x => x.Size);
autoTuner.CurrentlyUsedBatchSizes.GetOrAdd(reduceBatchAutoThrottlerId, size);
if (Log.IsDebugEnabled)
{
if (persistedResults.Count > 0)
{
Log.Debug(() => string.Format("Found {0} results for keys [{1}] for index {2} at level {3} in {4}",
persistedResults.Count,
string.Join(", ", persistedResults.Select(x => x.ReduceKey).Distinct()),
index.IndexName, level, batchTimeWatcher.Elapsed));
}
else
{
Log.Debug("No reduce keys found for {0}", index.IndexName);
}
}
context.CancellationToken.ThrowIfCancellationRequested();
var requiredReduceNextTime = persistedResults.Select(x => new ReduceKeyAndBucket(x.Bucket, x.ReduceKey))
.OrderBy(x => x.Bucket)
.Distinct()
.ToArray();
foreach (var mappedResultInfo in requiredReduceNextTime)
{
actions.MapReduce.RemoveReduceResults(index.IndexName, level + 1, mappedResultInfo.ReduceKey,
mappedResultInfo.Bucket);
}
if (level != 2)
{
var reduceKeysAndBuckets = requiredReduceNextTime
.Select(x => new ReduceKeyAndBucket(x.Bucket / 1024, x.ReduceKey))
.Distinct()
.ToArray();
foreach (var reduceKeysAndBucket in reduceKeysAndBuckets)
{
actions.MapReduce.ScheduleReductions(index.IndexName, level + 1, reduceKeysAndBucket);
}
}
var results = persistedResults
.Where(x => x.Data != null)
.GroupBy(x => x.Bucket, x => JsonToExpando.Convert(x.Data))
.ToArray();
var reduceKeys = new HashSet <string>(persistedResults.Select(x => x.ReduceKey),
StringComparer.InvariantCultureIgnoreCase);
context.PerformanceCounters.ReducedPerSecond.IncrementBy(results.Length);
context.CancellationToken.ThrowIfCancellationRequested();
var reduceTimeWatcher = Stopwatch.StartNew();
context.IndexStorage.Reduce(index.IndexName, viewGenerator, results, level, context, actions, reduceKeys, persistedResults.Count);
var batchDuration = batchTimeWatcher.Elapsed;
Log.Debug("Indexed {0} reduce keys in {1} with {2} results for index {3} in {4} on level {5}", reduceKeys.Count, batchDuration,
results.Length, index.IndexName, reduceTimeWatcher.Elapsed, level);
autoTuner.AutoThrottleBatchSize(count, size, batchDuration);
});
}
finally
{
long _;
autoTuner.CurrentlyUsedBatchSizes.TryRemove(reduceBatchAutoThrottlerId, out _);
}
}
}
foreach (var reduceKey in needToMoveToMultiStep)
{
string localReduceKey = reduceKey;
transactionalStorage.Batch(actions =>
actions.MapReduce.UpdatePerformedReduceType(index.IndexName, localReduceKey,
ReduceType.MultiStep));
}
}
private void SingleStepReduce(IndexToWorkOn index, string[] keysToReduce, AbstractViewGenerator viewGenerator,
ConcurrentSet <object> itemsToDelete)
{
var needToMoveToSingleStepQueue = new ConcurrentQueue <HashSet <string> >();
Log.Debug(() => string.Format("Executing single step reducing for {0} keys [{1}]", keysToReduce.Length, string.Join(", ", keysToReduce)));
var batchTimeWatcher = Stopwatch.StartNew();
var count = 0;
var size = 0;
var state = new ConcurrentQueue <Tuple <HashSet <string>, List <MappedResultInfo> > >();
var reducingBatchThrottlerId = Guid.NewGuid();
try
{
BackgroundTaskExecuter.Instance.ExecuteAllBuffered(context, keysToReduce, enumerator =>
{
var localNeedToMoveToSingleStep = new HashSet <string>();
needToMoveToSingleStepQueue.Enqueue(localNeedToMoveToSingleStep);
var localKeys = new HashSet <string>();
while (enumerator.MoveNext())
{
localKeys.Add(enumerator.Current);
}
transactionalStorage.Batch(actions =>
{
var getItemsToReduceParams = new GetItemsToReduceParams(index: index.IndexName, reduceKeys: 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 scheduledItems = actions.MapReduce.GetItemsToReduce(getItemsToReduceParams).ToList();
autoTuner.CurrentlyUsedBatchSizes.GetOrAdd(reducingBatchThrottlerId, scheduledItems.Sum(x => x.Size));
if (scheduledItems.Count == 0)
{
if (Log.IsWarnEnabled)
{
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));
}
// 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 bave 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
foreach (var reduceKey in keysToReduce)
{
actions.MapReduce.DeleteScheduledReduction(index.IndexName, 1, reduceKey);
actions.MapReduce.DeleteScheduledReduction(index.IndexName, 2, reduceKey);
}
}
foreach (var reduceKey in localKeys)
{
var lastPerformedReduceType = actions.MapReduce.GetLastPerformedReduceType(index.IndexName, reduceKey);
if (lastPerformedReduceType != ReduceType.SingleStep)
{
localNeedToMoveToSingleStep.Add(reduceKey);
}
if (lastPerformedReduceType != ReduceType.MultiStep)
{
continue;
}
Log.Debug("Key {0} was moved from multi step to single step reduce, removing existing reduce results records",
reduceKey);
// now we are in single step but previously multi step reduce was performed for the given key
var mappedBuckets = actions.MapReduce.GetMappedBuckets(index.IndexName, reduceKey).ToList();
// add scheduled items too to be sure we will delete reduce results of already deleted documents
mappedBuckets.AddRange(scheduledItems.Select(x => x.Bucket));
foreach (var mappedBucket in mappedBuckets.Distinct())
{
actions.MapReduce.RemoveReduceResults(index.IndexName, 1, reduceKey, mappedBucket);
actions.MapReduce.RemoveReduceResults(index.IndexName, 2, reduceKey, mappedBucket / 1024);
}
}
var mappedResults = actions.MapReduce.GetMappedResults(
index.IndexName,
localKeys,
loadData: true
).ToList();
Interlocked.Add(ref count, mappedResults.Count);
Interlocked.Add(ref size, mappedResults.Sum(x => x.Size));
mappedResults.ApplyIfNotNull(x => x.Bucket = 0);
state.Enqueue(Tuple.Create(localKeys, mappedResults));
});
});
var reduceKeys = new HashSet <string>(state.SelectMany(x => x.Item1));
var results = state.SelectMany(x => x.Item2)
.Where(x => x.Data != null)
.GroupBy(x => x.Bucket, x => JsonToExpando.Convert(x.Data))
.ToArray();
context.PerformanceCounters.ReducedPerSecond.IncrementBy(results.Length);
context.TransactionalStorage.Batch(actions =>
context.IndexStorage.Reduce(index.IndexName, viewGenerator, results, 2, context, actions, reduceKeys, state.Sum(x => x.Item2.Count))
);
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.IndexName, localReduceKey, ReduceType.SingleStep));
}
}
finally
{
long _;
autoTuner.CurrentlyUsedBatchSizes.TryRemove(reducingBatchThrottlerId, out _);
}
}
private IEnumerable<IndexingBatchForIndex> FilterIndexes(IList<IndexToWorkOn> indexesToWorkOn, List<JsonDocument> jsonDocs, Etag highestETagInBatch, out List<IndexToWorkOn> filteredOutIndexes)
{
var innerFilteredOutIndexes = new ConcurrentStack<IndexToWorkOn>();
var last = jsonDocs.Last();
Debug.Assert(last.Etag != null);
Debug.Assert(last.LastModified != null);
var lastEtag = last.Etag;
var lastModified = last.LastModified.Value;
var documentRetriever = new DocumentRetriever(null, null, context.ReadTriggers);
var filteredDocs =
BackgroundTaskExecuter.Instance.Apply(context, jsonDocs, doc =>
{
var filteredDoc = documentRetriever.ExecuteReadTriggers(doc, ReadOperation.Index);
return filteredDoc == null ? new
{
Doc = doc,
Json = (object)new FilteredDocument(doc)
} : new
{
Doc = filteredDoc,
Json = JsonToExpando.Convert(doc.ToJson())
};
});
if ( Log.IsDebugEnabled )
Log.Debug("After read triggers executed, {0} documents remained", filteredDocs.Count);
var results = new ConcurrentQueue<IndexingBatchForIndex>();
var actions = new ConcurrentQueue<Action<IStorageActionsAccessor>>();
context.Database.MappingThreadPool.ExecuteBatch(indexesToWorkOn, indexToWorkOn =>
{
var indexName = indexToWorkOn.Index.PublicName;
var viewGenerator = context.IndexDefinitionStorage.GetViewGenerator(indexName);
if (viewGenerator == null)
return; // probably deleted
var batch = new IndexingBatch(highestETagInBatch);
foreach (var filteredDoc in filteredDocs)
{
var doc = filteredDoc.Doc;
var json = filteredDoc.Json;
if (defaultPrefetchingBehavior.FilterDocuments(doc) == false
|| doc.Etag.CompareTo(indexToWorkOn.LastIndexedEtag) <= 0)
continue;
// did we already indexed this document in this index?
var etag = doc.Etag;
if (etag == null)
continue;
// is the Raven-Entity-Name a match for the things the index executes on?
if (viewGenerator.ForEntityNames.Count != 0 &&
viewGenerator.ForEntityNames.Contains(doc.Metadata.Value<string>(Constants.RavenEntityName)) == false)
{
continue;
}
batch.Add(doc, json, defaultPrefetchingBehavior.ShouldSkipDeleteFromIndex(doc));
if (batch.DateTime == null)
batch.DateTime = doc.LastModified;
else
batch.DateTime = batch.DateTime > doc.LastModified
? doc.LastModified
: batch.DateTime;
}
if (batch.Docs.Count == 0)
{
if ( Log.IsDebugEnabled )
Log.Debug("All documents have been filtered for {0}, no indexing will be performed, updating to {1}, {2}", indexName, lastEtag, lastModified);
// we use it this way to batch all the updates together
if (indexToWorkOn.LastIndexedEtag.CompareTo(lastEtag) < 0)
actions.Enqueue(accessor =>
{
accessor.Indexing.UpdateLastIndexed(indexToWorkOn.Index.indexId, lastEtag, lastModified);
accessor.AfterStorageCommit += () =>
{
indexToWorkOn.Index.EnsureIndexWriter();
indexToWorkOn.Index.Flush(lastEtag);
};
});
innerFilteredOutIndexes.Push(indexToWorkOn);
context.MarkIndexFilteredOut(indexName);
return;
}
if (Log.IsDebugEnabled)
Log.Debug("Going to index {0} documents in {1}: ({2})", batch.Ids.Count, indexToWorkOn, string.Join(", ", batch.Ids));
results.Enqueue(new IndexingBatchForIndex
{
Batch = batch,
IndexId = indexToWorkOn.IndexId,
Index = indexToWorkOn.Index,
LastIndexedEtag = indexToWorkOn.LastIndexedEtag
});
}, description: string.Format("Filtering documents for {0} indexes", indexesToWorkOn.Count));
filteredOutIndexes = innerFilteredOutIndexes.ToList();
foreach (var action in actions)
{
bool keepTrying = true;
for (int i = 0; i < 10 && keepTrying; i++)
{
keepTrying = false;
transactionalStorage.Batch(actionsAccessor =>
{
if (action != null)
{
try
{
action(actionsAccessor);
}
catch (Exception e)
{
if (actionsAccessor.IsWriteConflict(e))
{
keepTrying = true;
return;
}
throw;
}
}
});
if (keepTrying)
Thread.Sleep(11);
}
}
return results.Where(x => x != null);
}
private ReduceResultStats MultiStepReduce(IndexToWorkOn index, string[] keysToReduce, AbstractViewGenerator viewGenerator, List <object> itemsToDelete)
{
var result = new ReduceResultStats();
var needToMoveToMultiStep = new HashSet <string>();
transactionalStorage.Batch(actions =>
{
foreach (var localReduceKey in keysToReduce)
{
var lastPerformedReduceType = actions.MapReduce.GetLastPerformedReduceType(index.IndexName, localReduceKey);
if (lastPerformedReduceType != ReduceType.MultiStep)
{
needToMoveToMultiStep.Add(localReduceKey);
}
if (lastPerformedReduceType != ReduceType.SingleStep)
{
continue;
}
// we exceeded the limit of items to reduce in single step
// now we need to schedule reductions at level 0 for all map results with given reduce key
var mappedItems = actions.MapReduce.GetMappedBuckets(index.IndexName, localReduceKey).ToList();
actions.MapReduce.ScheduleReductions(index.IndexName, 0,
mappedItems.Select(x => new ReduceKeyAndBucket(x, localReduceKey)));
}
});
for (int i = 0; i < 3; i++)
{
var level = i;
bool retry = true;
var itemsAlreadySeen = new HashSet <Tuple <string, int> >();
while (retry)
{
transactionalStorage.Batch(actions =>
{
context.CancellationToken.ThrowIfCancellationRequested();
var sp = Stopwatch.StartNew();
var persistedResults = actions.MapReduce.GetItemsToReduce
(
level: level,
reduceKeys: keysToReduce,
index: index.IndexName,
itemsToDelete: itemsToDelete,
loadData: true,
take: context.CurrentNumberOfItemsToReduceInSingleBatch,
itemsAlreadySeen: itemsAlreadySeen
).ToList();
if (persistedResults.Count == 0)
{
retry = false;
return;
}
result.count += persistedResults.Count;
result.size += persistedResults.Sum(x => x.Size);
if (Log.IsDebugEnabled)
{
if (persistedResults.Count > 0)
{
Log.Debug(() => string.Format("Found {0} results for keys [{1}] for index {2} at level {3} in {4}",
persistedResults.Count,
string.Join(", ", persistedResults.Select(x => x.ReduceKey).Distinct()),
index.IndexName, level, sp.Elapsed));
}
else
{
Log.Debug("No reduce keys found for {0}", index.IndexName);
}
}
context.CancellationToken.ThrowIfCancellationRequested();
var requiredReduceNextTime = persistedResults.Select(x => new ReduceKeyAndBucket(x.Bucket, x.ReduceKey))
.OrderBy(x => x.Bucket)
.Distinct()
.ToArray();
foreach (var mappedResultInfo in requiredReduceNextTime)
{
actions.MapReduce.RemoveReduceResults(index.IndexName, level + 1, mappedResultInfo.ReduceKey,
mappedResultInfo.Bucket);
}
if (level != 2)
{
var reduceKeysAndBuckets = requiredReduceNextTime
.Select(x => new ReduceKeyAndBucket(x.Bucket / 1024, x.ReduceKey))
.Distinct()
.ToArray();
actions.MapReduce.ScheduleReductions(index.IndexName, level + 1, reduceKeysAndBuckets);
}
var results = persistedResults
.Where(x => x.Data != null)
.GroupBy(x => x.Bucket, x => JsonToExpando.Convert(x.Data))
.ToArray();
var reduceKeys = new HashSet <string>(persistedResults.Select(x => x.ReduceKey),
StringComparer.InvariantCultureIgnoreCase);
context.ReducedPerSecIncreaseBy(results.Length);
context.CancellationToken.ThrowIfCancellationRequested();
sp = Stopwatch.StartNew();
context.IndexStorage.Reduce(index.IndexName, viewGenerator, results, level, context, actions, reduceKeys);
Log.Debug("Indexed {0} reduce keys in {1} with {2} results for index {3} in {4}", reduceKeys.Count, sp.Elapsed,
results.Length, index.IndexName, sp.Elapsed);
});
}
}
foreach (var reduceKey in needToMoveToMultiStep)
{
string localReduceKey = reduceKey;
transactionalStorage.Batch(actions =>
actions.MapReduce.UpdatePerformedReduceType(index.IndexName, localReduceKey,
ReduceType.MultiStep));
}
return(result);
}
private ReduceResultStats SingleStepReduce(IndexToWorkOn index, string[] keysToReduce, AbstractViewGenerator viewGenerator,
List <object> itemsToDelete)
{
var result = new ReduceResultStats();
var needToMoveToSingleStep = new HashSet <string>();
Log.Debug(() => string.Format("Executing single step reducing for {0} keys [{1}]", keysToReduce.Length, string.Join(", ", keysToReduce)));
transactionalStorage.Batch(actions =>
{
var scheduledItems = actions.MapReduce.GetItemsToReduce
(
level: 0,
reduceKeys: keysToReduce,
index: index.IndexName,
itemsToDelete: itemsToDelete,
loadData: false,
take: int.MaxValue, // just get all, we do the rate limit when we load the number of keys to reduce, anyway
itemsAlreadySeen: new HashSet <Tuple <string, int> >()
).ToList();
// Only look at the scheduled batch for this run, not the entire set of pending reductions.
//var batchKeys = scheduledItems.Select(x => x.ReduceKey).ToArray();
foreach (var reduceKey in keysToReduce)
{
var lastPerformedReduceType = actions.MapReduce.GetLastPerformedReduceType(index.IndexName, reduceKey);
if (lastPerformedReduceType != ReduceType.SingleStep)
{
needToMoveToSingleStep.Add(reduceKey);
}
if (lastPerformedReduceType != ReduceType.MultiStep)
{
continue;
}
Log.Debug("Key {0} was moved from multi step to single step reduce, removing existing reduce results records",
reduceKey);
// now we are in single step but previously multi step reduce was performed for the given key
var mappedBuckets = actions.MapReduce.GetMappedBuckets(index.IndexName, reduceKey).ToList();
// add scheduled items too to be sure we will delete reduce results of already deleted documents
mappedBuckets.AddRange(scheduledItems.Select(x => x.Bucket));
foreach (var mappedBucket in mappedBuckets.Distinct())
{
actions.MapReduce.RemoveReduceResults(index.IndexName, 1, reduceKey, mappedBucket);
actions.MapReduce.RemoveReduceResults(index.IndexName, 2, reduceKey, mappedBucket / 1024);
}
}
var mappedResults = actions.MapReduce.GetMappedResults(
index.IndexName,
keysToReduce,
loadData: true
).ToList();
result.count += mappedResults.Count;
result.size += mappedResults.Sum(x => x.Size);
var reduceKeys = new HashSet <string>(keysToReduce);
mappedResults.ApplyIfNotNull(x => x.Bucket = 0);
var results = mappedResults
.Where(x => x.Data != null)
.GroupBy(x => x.Bucket, x => JsonToExpando.Convert(x.Data))
.ToArray();
context.ReducedPerSecIncreaseBy(results.Length);
context.IndexStorage.Reduce(index.IndexName, viewGenerator, results, 2, context, actions, reduceKeys);
});
foreach (var reduceKey in needToMoveToSingleStep)
{
string localReduceKey = reduceKey;
transactionalStorage.Batch(actions =>
actions.MapReduce.UpdatePerformedReduceType(index.IndexName, localReduceKey, ReduceType.SingleStep));
}
return(result);
}
private IEnumerable <Tuple <IndexToWorkOn, IndexingBatch> > FilterIndexes(IList <IndexToWorkOn> indexesToWorkOn, JsonDocument[] jsonDocs)
{
var last = jsonDocs.Last();
Debug.Assert(last.Etag != null);
Debug.Assert(last.LastModified != null);
var lastEtag = last.Etag.Value;
var lastModified = last.LastModified.Value;
var lastIndexedEtag = new ComparableByteArray(lastEtag.ToByteArray());
var documentRetriever = new DocumentRetriever(null, context.ReadTriggers);
var filteredDocs =
BackgroundTaskExecuter.Instance.Apply(jsonDocs, doc =>
{
doc = documentRetriever.ExecuteReadTriggers(doc, null, ReadOperation.Index);
return(doc == null ? null : new { Doc = doc, Json = JsonToExpando.Convert(doc.ToJson()) });
});
log.Debug("After read triggers executed, {0} documents remained", filteredDocs.Count);
var results = new Tuple <IndexToWorkOn, IndexingBatch> [indexesToWorkOn.Count];
var actions = new Action <IStorageActionsAccessor> [indexesToWorkOn.Count];
BackgroundTaskExecuter.Instance.ExecuteAll(context.Configuration, scheduler, indexesToWorkOn, (indexToWorkOn, i) =>
{
var indexLastInedexEtag = new ComparableByteArray(indexToWorkOn.LastIndexedEtag.ToByteArray());
if (indexLastInedexEtag.CompareTo(lastIndexedEtag) >= 0)
{
return;
}
var indexName = indexToWorkOn.IndexName;
var viewGenerator = context.IndexDefinitionStorage.GetViewGenerator(indexName);
if (viewGenerator == null)
{
return; // probably deleted
}
var batch = new IndexingBatch();
foreach (var item in filteredDocs)
{
// did we already indexed this document in this index?
if (indexLastInedexEtag.CompareTo(new ComparableByteArray(item.Doc.Etag.Value.ToByteArray())) >= 0)
{
continue;
}
// is the Raven-Entity-Name a match for the things the index executes on?
if (viewGenerator.ForEntityNames.Count != 0 &&
viewGenerator.ForEntityNames.Contains(item.Doc.Metadata.Value <string>(Constants.RavenEntityName)) == false)
{
continue;
}
batch.Add(item.Doc, item.Json);
if (batch.DateTime == null)
{
batch.DateTime = item.Doc.LastModified;
}
else
{
batch.DateTime = batch.DateTime > item.Doc.LastModified
? item.Doc.LastModified
: batch.DateTime;
}
}
if (batch.Docs.Count == 0)
{
log.Debug("All documents have been filtered for {0}, no indexing will be performed, updating to {1}, {2}", indexName,
lastEtag, lastModified);
// we use it this way to batch all the updates together
actions[i] = accessor => accessor.Indexing.UpdateLastIndexed(indexName, lastEtag, lastModified);
return;
}
log.Debug("Going to index {0} documents in {1}", batch.Ids.Count, indexToWorkOn);
results[i] = Tuple.Create(indexToWorkOn, batch);
});
transactionalStorage.Batch(actionsAccessor =>
{
foreach (var action in actions)
{
if (action != null)
{
action(actionsAccessor);
}
}
});
return(results.Where(x => x != null));
}
