moved things out of TRI_collection_t

arangod/Aql/AstNode.cpp

@@ -39,6 +39,7 @@
 #endif
 
 #include <velocypack/Builder.h>
+#include <velocypack/Iterator.h>
 #include <velocypack/Slice.h>
 #include <velocypack/ValueType.h>
 #include <velocypack/velocypack-aliases.h>

arangod/Aql/Collection.cpp

@@ -85,7 +85,7 @@ size_t Collection::count() const {
     } else {
       // local case
       // cache the result
-      numDocuments = static_cast<int64_t>(collection->_numberDocuments);
+      numDocuments = static_cast<int64_t>(collection->numberDocuments());
     }
   }
 

arangod/Aql/Functions.cpp

@@ -3350,16 +3350,16 @@ AqlValue Functions::CollectionCount(
   auto resolver = trx->resolver();
   TRI_voc_cid_t cid = resolver->getCollectionIdLocal(collectionName);
   trx->addCollectionAtRuntime(cid, collectionName);
-  auto document = trx->documentCollection(cid);
+  auto collection = trx->documentCollection(cid);
 
-  if (document == nullptr) {
+  if (collection == nullptr) {
     THROW_ARANGO_EXCEPTION_FORMAT(TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND,
                                   "'%s'", collectionName.c_str());
   }
 
   TransactionBuilderLeaser builder(trx);
   // TODO Temporary until move to LogicalCollection is complete
-  builder->add(VPackValue(document->_numberDocuments));
+  builder->add(VPackValue(collection->numberDocuments()));
   return AqlValue(builder.get());
 }
 

arangod/Aql/IndexBlock.cpp

@@ -32,6 +32,7 @@
 #include "Basics/StaticStrings.h"
 #include "Utils/OperationCursor.h"
 #include "V8/v8-globals.h"
+#include "VocBase/MasterPointer.h"
 #include "VocBase/vocbase.h"
 
 #include <velocypack/Iterator.h>

arangod/Aql/ShortestPathBlock.cpp

@@ -25,10 +25,14 @@
 
 #include "Aql/ExecutionEngine.h"
 #include "Aql/ExecutionPlan.h"
-#include "VocBase/EdgeCollectionInfo.h"
 #include "Utils/AqlTransaction.h"
 #include "Utils/OperationCursor.h"
 #include "Utils/Transaction.h"
+#include "VocBase/EdgeCollectionInfo.h"
+#include "VocBase/MasterPointer.h"
+
+#include <velocypack/Iterator.h>
+#include <velocypack/velocypack-aliases.h>
 
 ////////////////////////////////////////////////////////////////////////////////
 /// @brief typedef the template instantiation of the PathFinder

arangod/Aql/ShortestPathNode.cpp

@@ -31,6 +31,9 @@
 #include "Utils/CollectionNameResolver.h"
 #include "V8Server/V8Traverser.h"
 
+#include <velocypack/Iterator.h>
+#include <velocypack/velocypack-aliases.h>
+
 using namespace arangodb::basics;
 using namespace arangodb::aql;
 

arangod/Aql/TraversalBlock.cpp

@@ -32,10 +32,12 @@
 #include "Cluster/ClusterTraverser.h"
 #include "Utils/OperationCursor.h"
 #include "Utils/Transaction.h"
-#include "VocBase/SingleServerTraverser.h"
 #include "V8/v8-globals.h"
+#include "VocBase/MasterPointer.h"
+#include "VocBase/SingleServerTraverser.h"
 
 #include <velocypack/Builder.h>
+#include <velocypack/Iterator.h>
 #include <velocypack/velocypack-aliases.h>
 
 using namespace arangodb::aql;

arangod/Aql/TraversalNode.cpp

@@ -30,6 +30,9 @@
 #include "Aql/TraversalOptions.h"
 #include "Indexes/Index.h"
 
+#include <velocypack/Iterator.h>
+#include <velocypack/velocypack-aliases.h>
+
 using namespace arangodb::basics;
 using namespace arangodb::aql;
 

arangod/Indexes/FulltextIndex.cpp

@@ -22,10 +22,11 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 #include "FulltextIndex.h"
-#include "Logger/Logger.h"
 #include "Basics/StringRef.h"
 #include "Basics/Utf8Helper.h"
+#include "Basics/VelocyPackHelper.h"
 #include "FulltextIndex/fulltext-index.h"
+#include "Logger/Logger.h"
 #include "VocBase/collection.h"
 #include "VocBase/transaction.h"
 

arangod/Indexes/GeoIndex.cpp

@@ -24,6 +24,7 @@
 #include "GeoIndex.h"
 #include "Logger/Logger.h"
 #include "Basics/StringRef.h"
+#include "Basics/VelocyPackHelper.h"
 #include "VocBase/collection.h"
 #include "VocBase/transaction.h"
 

arangod/Replication/ContinuousSyncer.cpp

@@ -24,6 +24,7 @@
 #include "ContinuousSyncer.h"
 #include "ApplicationFeatures/ApplicationServer.h"
 #include "Basics/Exceptions.h"
+#include "Basics/StaticStrings.h"
 #include "Basics/StringBuffer.h"
 #include "Basics/VelocyPackHelper.h"
 #include "Basics/WriteLocker.h"

arangod/Replication/InitialSyncer.cpp

@@ -1651,7 +1651,7 @@ int64_t InitialSyncer::getSize(arangodb::LogicalCollection* col) {
   }
   
   auto document = trx.documentCollection();
-  return static_cast<int64_t>(document->_numberDocuments);
+  return static_cast<int64_t>(document->numberDocuments());
 }
 
 ////////////////////////////////////////////////////////////////////////////////

arangod/StorageEngine/MMFilesCleanupThread.cpp

@@ -152,8 +152,6 @@ void MMFilesCleanupThread::cleanupCollection(arangodb::LogicalCollection* collec
   // but if we are in server shutdown, we can force unloading of collections
   bool isInShutdown = application_features::ApplicationServer::isStopping();
   
-  TRI_collection_t* document = collection->_collection;
-
   // loop until done
 
   while (true) {
@@ -217,7 +215,7 @@ void MMFilesCleanupThread::cleanupCollection(arangodb::LogicalCollection* collec
         }
       }
 
-      if (!document->isFullyCollected()) {
+      if (!collection->isFullyCollected()) {
         bool isDeleted = false;
 
         // if there is still some garbage collection to perform,

arangod/StorageEngine/MMFilesCompactorThread.cpp

@@ -597,7 +597,6 @@ bool MMFilesCompactorThread::compactCollection(LogicalCollection* collection, bo
   //    return false;
   //  }
 
-  TRI_collection_t* document = collection->_collection;
   wasBlocked = false;
 
   // if we cannot acquire the read lock instantly, we will exit directly.
@@ -617,7 +616,7 @@ bool MMFilesCompactorThread::compactCollection(LogicalCollection* collection, bo
     // we already have created a compactor file in progress.
     // if this happens, then a previous compaction attempt for this collection
     // failed or is not finished yet
-    document->setCompactionStatus(ReasonCompactionBlocked);
+    collection->setCompactionStatus(ReasonCompactionBlocked);
     wasBlocked = true;
     return false;
   }
@@ -627,7 +626,7 @@ bool MMFilesCompactorThread::compactCollection(LogicalCollection* collection, bo
 
   if (datafiles.empty()) {
     // collection has no datafiles
-    document->setCompactionStatus(ReasonNoDatafiles);
+    collection->setCompactionStatus(ReasonNoDatafiles);
     return false;
   }
   
@@ -638,7 +637,7 @@ bool MMFilesCompactorThread::compactCollection(LogicalCollection* collection, bo
   size_t const n = datafiles.size();
   LOG_TOPIC(DEBUG, Logger::COMPACTOR) << "inspecting datafiles of collection '" << collection->name() << "' for compaction opportunities";
 
-  size_t start = document->getNextCompactionStartIndex();
+  size_t start = collection->getNextCompactionStartIndex();
 
   // get number of documents from collection
   uint64_t const numDocuments = getNumberOfDocuments(collection);
@@ -797,10 +796,10 @@ bool MMFilesCompactorThread::compactCollection(LogicalCollection* collection, bo
 
   if (toCompact.empty()) {
     // nothing to compact. now reset start index
-    document->setNextCompactionStartIndex(0);
+    collection->setNextCompactionStartIndex(0);
     
     // cleanup local variables
-    document->setCompactionStatus(ReasonNothingToCompact);
+    collection->setCompactionStatus(ReasonNothingToCompact);
     LOG_TOPIC(DEBUG, Logger::COMPACTOR) << "inspecting datafiles of collection yielded: " << ReasonNothingToCompact;
     return false;
   }
@@ -808,9 +807,8 @@ bool MMFilesCompactorThread::compactCollection(LogicalCollection* collection, bo
   // handle datafiles with dead objects
   TRI_ASSERT(toCompact.size() >= 1);
   TRI_ASSERT(reason != nullptr);
-  document->setCompactionStatus(reason);
-
-  document->setNextCompactionStartIndex(start);
+  collection->setCompactionStatus(reason);
+  collection->setNextCompactionStartIndex(start);
   compactDatafiles(collection, toCompact);
 
   return true;
@@ -882,7 +880,7 @@ void MMFilesCompactorThread::run() {
 
             try {
               double const now = TRI_microtime();
-              if (document->lastCompaction() + compactionCollectionInterval() <= now) {
+              if (collection->lastCompactionStamp() + compactionCollectionInterval() <= now) {
                 auto ce = collection->ditches()->createCompactionDitch(__FILE__,
                                                                       __LINE__);
 
@@ -896,7 +894,7 @@ void MMFilesCompactorThread::run() {
 
                     if (!worked && !wasBlocked) {
                       // set compaction stamp
-                      document->lastCompaction(now);
+                      collection->lastCompactionStamp(now);
                     }
                     // if we worked or were blocked, then we don't set the compaction stamp to
                     // force another round of compaction
@@ -962,7 +960,7 @@ uint64_t MMFilesCompactorThread::getNumberOfDocuments(LogicalCollection* collect
     return 16384; // assume some positive value 
   }
    
-  return static_cast<int64_t>(collection->_numberDocuments);
+  return collection->numberDocuments();
 }
 
 /// @brief write a copy of the marker into the datafile

arangod/StorageEngine/MMFilesEngine.cpp

@@ -1961,7 +1961,7 @@ int MMFilesEngine::transferMarkersWorker(LogicalCollection* collection,
   // used only for crash / recovery tests
   int numMarkers = 0;
 
-  TRI_voc_tick_t const minTransferTick = collection->_collection->_tickMax;
+  TRI_voc_tick_t const minTransferTick = collection->maxTick();
   TRI_ASSERT(!operations.empty());
 
   for (auto it2 = operations.begin(); it2 != operations.end(); ++it2) {
@@ -2080,8 +2080,8 @@ void MMFilesEngine::finishMarker(char const* walPosition,
   // update ticks
   TRI_UpdateTicksDatafile(datafile, marker);
 
-  TRI_ASSERT(collection->_collection->_tickMax < tick);
-  collection->_collection->_tickMax = tick;
+  TRI_ASSERT(collection->maxTick() < tick);
+  collection->maxTick(tick);
 
   cache->operations->emplace_back(wal::CollectorOperation(
       datafilePosition, marker->getSize(), walPosition, cache->lastFid));

arangod/Utils/CollectionExport.cpp

@@ -90,7 +90,7 @@ void CollectionExport::run(uint64_t maxWaitTime, size_t limit) {
     uint64_t const maxTries = maxWaitTime / SleepTime;
 
     while (++tries < maxTries) {
-      if (_document->isFullyCollected()) {
+      if (_collection->isFullyCollected()) {
         break;
       }
       usleep(SleepTime);

arangod/Utils/CollectionKeys.cpp

@@ -31,8 +31,9 @@
 #include "Utils/StandaloneTransactionContext.h"
 #include "VocBase/DatafileHelper.h"
 #include "VocBase/Ditch.h"
-#include "VocBase/collection.h"
 #include "VocBase/LogicalCollection.h"
+#include "VocBase/MasterPointer.h"
+#include "VocBase/collection.h"
 #include "VocBase/ticks.h"
 #include "VocBase/vocbase.h"
 #include "Wal/LogfileManager.h"

arangod/Utils/Transaction.cpp

@@ -2645,7 +2645,7 @@ OperationResult Transaction::countLocal(std::string const& collectionName) {
   // TODO Temporary until the move to LogicalCollection is completed
   LogicalCollection* collection = documentCollection(trxCollection(cid));
 
-  uint64_t num = collection->_numberDocuments;
+  uint64_t num = collection->numberDocuments();
 
   res = unlock(trxCollection(cid), TRI_TRANSACTION_READ);
   

arangod/V8Server/v8-collection.cpp

@@ -32,6 +32,7 @@
 #include "Basics/StaticStrings.h"
 #include "Basics/VelocyPackHelper.h"
 #include "Basics/WriteLocker.h"
+#include "Cluster/ClusterInfo.h"
 #include "Cluster/ClusterMethods.h"
 #include "Indexes/PrimaryIndex.h"
 #include "RestServer/DatabaseFeature.h"

arangod/V8Server/v8-vocindex.cpp

@@ -27,6 +27,7 @@
 #include "Basics/StringUtils.h"
 #include "Basics/tri-strings.h"
 #include "Basics/VelocyPackHelper.h"
+#include "Cluster/ClusterInfo.h"
 #include "Cluster/ClusterMethods.h"
 #include "FulltextIndex/fulltext-index.h"
 #include "Indexes/EdgeIndex.h"

arangod/VocBase/Ditch.cpp

@@ -24,7 +24,7 @@
 #include "Ditch.h"
 #include "Logger/Logger.h"
 #include "Basics/MutexLocker.h"
-#include "VocBase/collection.h"
+#include "VocBase/datafile.h"
 
 using namespace arangodb;
 

arangod/VocBase/LogicalCollection.cpp

@@ -325,9 +325,13 @@ LogicalCollection::LogicalCollection(
       _masterPointers(),
       _useSecondaryIndexes(true),
       _numberDocuments(0),
+      _maxTick(0),
       _keyGenerator(),
       _collection(nullptr),
-      _lock() {
+      _nextCompactionStartIndex(0),
+      _lastCompactionStatus(nullptr),
+      _lastCompactionStamp(0.0),
+      _uncollectedLogfileEntries(0) {
         
   _keyGenerator.reset(KeyGenerator::factory(other->keyOptions()));
   
@@ -343,6 +347,8 @@ LogicalCollection::LogicalCollection(
   for (auto const& idx : other->_indexes) {
     _indexes.emplace_back(idx);
   }
+  
+  setCompactionStatus("compaction not yet started");
 }
 
 // @brief Constructor used in coordinator case.
@@ -384,9 +390,13 @@ LogicalCollection::LogicalCollection(TRI_vocbase_t* vocbase, VPackSlice info)
       _masterPointers(),
       _useSecondaryIndexes(true),
       _numberDocuments(0),
+      _maxTick(0),
       _keyGenerator(),
       _collection(nullptr),
-      _lock() {
+      _nextCompactionStartIndex(0),
+      _lastCompactionStatus(nullptr),
+      _lastCompactionStamp(0.0),
+      _uncollectedLogfileEntries(0) {
  
   if (!IsAllowedName(info)) {
     THROW_ARANGO_EXCEPTION(TRI_ERROR_ARANGO_ILLEGAL_NAME);
@@ -472,6 +482,8 @@ LogicalCollection::LogicalCollection(TRI_vocbase_t* vocbase, VPackSlice info)
   if (ServerState::instance()->isDBServer()) {
     _followers.reset(new FollowerInfo(this));
   }
+  
+  setCompactionStatus("compaction not yet started");
 }
 
 LogicalCollection::~LogicalCollection() {
@@ -520,6 +532,30 @@ bool LogicalCollection::IsAllowedName(VPackSlice parameters) {
   return true;
 }
 
+/// @brief whether or not a collection is fully collected
+bool LogicalCollection::isFullyCollected() {
+  int64_t uncollected = _uncollectedLogfileEntries.load();
+
+  return (uncollected == 0);
+}
+
+void LogicalCollection::setNextCompactionStartIndex(size_t index) {
+  MUTEX_LOCKER(mutexLocker, _compactionStatusLock);
+  _nextCompactionStartIndex = index;
+}
+
+size_t LogicalCollection::getNextCompactionStartIndex() {
+  MUTEX_LOCKER(mutexLocker, _compactionStatusLock);
+  return _nextCompactionStartIndex;
+}
+
+void LogicalCollection::setCompactionStatus(char const* reason) {
+  TRI_ASSERT(reason != nullptr);
+  
+  MUTEX_LOCKER(mutexLocker, _compactionStatusLock);
+  _lastCompactionStatus = reason;
+}
+
 size_t LogicalCollection::journalSize() const {
   return _journalSize;
 }
@@ -970,9 +1006,6 @@ std::shared_ptr<arangodb::velocypack::Builder> LogicalCollection::figures() {
   auto builder = std::make_shared<VPackBuilder>();
   
   if (ServerState::instance()->isCoordinator()) {
-    builder->openObject();
-    builder->close();
-
     int res = figuresOnCoordinator(dbName(), cid_as_string(), builder); 
     
     if (res != TRI_ERROR_NO_ERROR) {
@@ -980,9 +1013,7 @@ std::shared_ptr<arangodb::velocypack::Builder> LogicalCollection::figures() {
     }
   } else {
     TRI_ASSERT(_collection != nullptr);
-    // add figures from TRI_collection_t
     builder->openObject();
-    _collection->figures(builder);
 
       // add index information
     size_t sizeIndexes = _masterPointers.memory();
@@ -997,6 +1028,34 @@ std::shared_ptr<arangodb::velocypack::Builder> LogicalCollection::figures() {
     builder->add("size", VPackValue(sizeIndexes));
     builder->close(); // indexes
 
+    builder->add("lastTick", VPackValue(_maxTick));
+    builder->add("uncollectedLogfileEntries", VPackValue(_uncollectedLogfileEntries));
+
+    // fills in compaction status
+    char const* lastCompactionStatus = "-";
+    char lastCompactionStampString[21];
+    lastCompactionStampString[0] = '-';
+    lastCompactionStampString[1] = '\0';
+    
+    double lastCompactionStamp;
+
+    {
+      MUTEX_LOCKER(mutexLocker, _compactionStatusLock);
+      lastCompactionStatus = _lastCompactionStatus;
+      lastCompactionStamp = _lastCompactionStamp;
+    }
+
+    if (lastCompactionStatus != nullptr) {
+      struct tm tb;
+      time_t tt = static_cast<time_t>(lastCompactionStamp);
+      TRI_gmtime(tt, &tb);
+      strftime(&lastCompactionStampString[0], sizeof(lastCompactionStampString), "%Y-%m-%dT%H:%M:%SZ", &tb);
+    }
+  
+    builder->add("compactionStatus", VPackValue(VPackValueType::Object));
+    builder->add("message", VPackValue(lastCompactionStatus));
+    builder->add("time", VPackValue(&lastCompactionStampString[0]));
+    builder->close(); // compactionStatus
 
     // add engine-specific figures
     getPhysical()->figures(builder);
@@ -2098,6 +2157,7 @@ int LogicalCollection::remove(arangodb::Transaction* trx,
     }
 
     operation.indexed();
+    TRI_ASSERT(_numberDocuments > 0);
     _numberDocuments--;
 
     TRI_IF_FAILURE("RemoveDocumentNoOperation") { return TRI_ERROR_DEBUG; }

arangod/VocBase/LogicalCollection.h

@@ -89,6 +89,28 @@ class LogicalCollection {
 
   static bool IsAllowedName(arangodb::velocypack::Slice parameters);
 
+  // TODO: MOVE TO PHYSICAL?  
+  bool isFullyCollected();
+  int64_t uncollectedLogfileEntries() const { return _uncollectedLogfileEntries.load(); }
+  
+  void increaseUncollectedLogfileEntries(int64_t value) {
+    _uncollectedLogfileEntries += value;
+  }
+
+  void decreaseUncollectedLogfileEntries(int64_t value) {
+    _uncollectedLogfileEntries -= value;
+    if (_uncollectedLogfileEntries < 0) {
+      _uncollectedLogfileEntries = 0;
+    }
+  }
+
+  void setNextCompactionStartIndex(size_t);
+  size_t getNextCompactionStartIndex();
+  void setCompactionStatus(char const*);
+  double lastCompactionStamp() const { return _lastCompactionStamp; }
+  void lastCompactionStamp(double value) { _lastCompactionStamp = value; }
+  
+
   // SECTION: Meta Information
   uint32_t version() const { 
     return _version; 
@@ -120,6 +142,19 @@ class LogicalCollection {
   TRI_vocbase_col_status_e tryFetchStatus(bool&);
   std::string statusString();
 
+  TRI_voc_tick_t maxTick() const { return _maxTick; }
+  void maxTick(TRI_voc_tick_t value) { _maxTick = value; }
+
+  uint64_t numberDocuments() const { return _numberDocuments; }
+
+  // TODO: REMOVE THESE OR MAKE PRIVATE
+  void incNumberDocuments() { ++_numberDocuments; }
+
+  void decNumberDocuments() { 
+    TRI_ASSERT(_numberDocuments > 0); 
+    --_numberDocuments; 
+  }
+
   // TODO this should be part of physical collection!
   size_t journalSize() const;
 
@@ -489,11 +524,10 @@ class LogicalCollection {
   // whether or not secondary indexes should be filled
   bool _useSecondaryIndexes;
 
-  // FIXME Both of them are not initialized properly!
- public:
-  // FIXME Must be private. OpenIterator uses this.
-  int64_t _numberDocuments;
- private:
+  uint64_t _numberDocuments;
+
+  TRI_voc_tick_t _maxTick;
+
   std::unique_ptr<arangodb::KeyGenerator> _keyGenerator;
   
   // TODO REMOVE ME!
@@ -502,10 +536,20 @@ class LogicalCollection {
 
   mutable arangodb::basics::ReadWriteLock
       _lock;  // lock protecting the status and name
+ 
+ private:
   mutable arangodb::basics::ReadWriteLock
       _idxLock;  // lock protecting the indexes
+
   mutable arangodb::basics::ReadWriteLock
       _infoLock;  // lock protecting the info
+  
+  arangodb::Mutex _compactionStatusLock;
+  size_t _nextCompactionStartIndex;
+  char const* _lastCompactionStatus;
+  double _lastCompactionStamp;
+  
+  std::atomic<int64_t> _uncollectedLogfileEntries;
 };
 
 }  // namespace arangodb

arangod/VocBase/collection.cpp

@@ -85,81 +85,10 @@ int TRI_AddOperationTransaction(TRI_transaction_t*,
                                 arangodb::wal::DocumentOperation&, bool&);
 
 TRI_collection_t::TRI_collection_t(TRI_vocbase_t* vocbase)
-      : _vocbase(vocbase), 
-        _tickMax(0),
-        _uncollectedLogfileEntries(0),
-        _nextCompactionStartIndex(0),
-        _lastCompactionStatus(nullptr),
-        _lastCompaction(0.0) {
-  setCompactionStatus("compaction not yet started");
-}
+      : _vocbase(vocbase) {} 
   
 TRI_collection_t::~TRI_collection_t() {}
 
-/// @brief whether or not a collection is fully collected
-bool TRI_collection_t::isFullyCollected() {
-  int64_t uncollected = _uncollectedLogfileEntries.load();
-
-  return (uncollected == 0);
-}
-
-void TRI_collection_t::setNextCompactionStartIndex(size_t index) {
-  MUTEX_LOCKER(mutexLocker, _compactionStatusLock);
-  _nextCompactionStartIndex = index;
-}
-
-size_t TRI_collection_t::getNextCompactionStartIndex() {
-  MUTEX_LOCKER(mutexLocker, _compactionStatusLock);
-  return _nextCompactionStartIndex;
-}
-
-void TRI_collection_t::setCompactionStatus(char const* reason) {
-  TRI_ASSERT(reason != nullptr);
-  struct tm tb;
-  time_t tt = time(nullptr);
-  TRI_gmtime(tt, &tb);
-
-  MUTEX_LOCKER(mutexLocker, _compactionStatusLock);
-  _lastCompactionStatus = reason;
-
-  strftime(&_lastCompactionStamp[0], sizeof(_lastCompactionStamp),
-           "%Y-%m-%dT%H:%M:%SZ", &tb);
-}
-
-void TRI_collection_t::getCompactionStatus(char const*& reason,
-                                           char* dst, size_t maxSize) {
-  memset(dst, 0, maxSize);
-  if (maxSize > sizeof(_lastCompactionStamp)) {
-    maxSize = sizeof(_lastCompactionStamp);
-  }
-  MUTEX_LOCKER(mutexLocker, _compactionStatusLock);
-  reason = _lastCompactionStatus;
-  memcpy(dst, &_lastCompactionStamp[0], maxSize);
-}
-
-void TRI_collection_t::figures(std::shared_ptr<arangodb::velocypack::Builder>& builder) {
-  builder->add("uncollectedLogfileEntries", VPackValue(_uncollectedLogfileEntries));
-  builder->add("lastTick", VPackValue(_tickMax));
-
-  // fills in compaction status
-  char const* lastCompactionStatus = nullptr;
-  char lastCompactionStamp[21];
-  getCompactionStatus(lastCompactionStatus,
-                      &lastCompactionStamp[0],
-                      sizeof(lastCompactionStamp));
-
-  if (lastCompactionStatus == nullptr) {
-    lastCompactionStatus = "-";
-    lastCompactionStamp[0] = '-';
-    lastCompactionStamp[1] = '\0';
-  }
-  
-  builder->add("compactionStatus", VPackValue(VPackValueType::Object));
-  builder->add("message", VPackValue(lastCompactionStatus));
-  builder->add("time", VPackValue(&lastCompactionStamp[0]));
-  builder->close(); // compactionStatus
-}
-
 /// @brief checks if a collection name is allowed
 /// Returns true if the name is allowed and false otherwise
 bool TRI_collection_t::IsAllowedName(bool allowSystem, std::string const& name) {
@@ -309,7 +238,8 @@ static int OpenIteratorHandleDocumentMarker(TRI_df_marker_t const* marker,
 
       return res;
     }
-    ++collection->_numberDocuments;
+
+    collection->incNumberDocuments();
 
     // update the datafile info
     state->_dfi->numberAlive++;
@@ -409,8 +339,7 @@ static int OpenIteratorHandleDeletionMarker(TRI_df_marker_t const* marker,
     state->_dfi->numberDeletions++;
 
     collection->deletePrimaryIndex(trx, found);
-
-    --collection->_numberDocuments;
+    collection->decNumberDocuments();
 
     // free the header
     collection->_masterPointers.release(found);
@@ -422,7 +351,6 @@ static int OpenIteratorHandleDeletionMarker(TRI_df_marker_t const* marker,
 /// @brief iterator for open
 static bool OpenIterator(TRI_df_marker_t const* marker, OpenIteratorState* data,
                          TRI_datafile_t* datafile) {
-  TRI_collection_t* document = data->_document;
   TRI_voc_tick_t const tick = marker->getTick();
   TRI_df_marker_type_t const type = marker->getType();
 
@@ -459,12 +387,12 @@ static bool OpenIterator(TRI_df_marker_t const* marker, OpenIteratorState* data,
     datafile->_tickMax = tick;
   }
 
-  if (tick > document->_tickMax) {
+  if (tick > data->_collection->maxTick()) {
     if (type != TRI_DF_MARKER_HEADER &&
         type != TRI_DF_MARKER_FOOTER &&
         type != TRI_DF_MARKER_COL_HEADER &&
         type != TRI_DF_MARKER_PROLOGUE) {
-      document->_tickMax = tick;
+      data->_collection->maxTick(tick);
     }
   }
 

arangod/VocBase/collection.h

@@ -25,22 +25,8 @@
 #define ARANGOD_VOC_BASE_COLLECTION_H 1
 
 #include "Basics/Common.h"
-#include "Cluster/ClusterInfo.h"
-#include "VocBase/MasterPointer.h"
-#include "VocBase/MasterPointers.h"
 #include "VocBase/vocbase.h"
 
-namespace arangodb {
-namespace velocypack {
-template <typename T>
-class Buffer;
-class Slice;
-}
-namespace wal {
-struct DocumentOperation;
-}
-}
-
 /// @brief predefined collection name for users
 #define TRI_COL_NAME_USERS "_users"
 
@@ -64,32 +50,8 @@ struct TRI_collection_t {
   /// returns true if the name is allowed and false otherwise
   static bool IsAllowedName(bool isSystem, std::string const& name);
   
-  bool isFullyCollected();
-
-  void setNextCompactionStartIndex(size_t);
-  size_t getNextCompactionStartIndex();
-  void setCompactionStatus(char const*);
-  void getCompactionStatus(char const*&, char*, size_t);
-  
-  void figures(std::shared_ptr<arangodb::velocypack::Builder>& result);
-
-  double lastCompaction() const { return _lastCompaction; }
-  void lastCompaction(double value) { _lastCompaction = value; }
-  
  public:
   TRI_vocbase_t* _vocbase;
-  TRI_voc_tick_t _tickMax;
- 
- public:
-  std::atomic<int64_t> _uncollectedLogfileEntries;
-  
- private:
-
-  arangodb::Mutex _compactionStatusLock;
-  size_t _nextCompactionStartIndex;
-  char const* _lastCompactionStatus;
-  char _lastCompactionStamp[21];
-  double _lastCompaction;
 };
 
 #endif

arangod/VocBase/replication-dump.cpp

@@ -23,6 +23,7 @@
 
 #include "replication-dump.h"
 #include "Basics/ReadLocker.h"
+#include "Basics/StaticStrings.h"
 #include "Basics/VPackStringBufferAdapter.h"
 #include "Logger/Logger.h"
 #include "VocBase/CompactionLocker.h"

arangod/VocBase/transaction.cpp

@@ -185,7 +185,6 @@ static void FreeOperations(TRI_transaction_t* trx) {
     }
 
     arangodb::LogicalCollection* collection = trxCollection->_collection;
-    TRI_collection_t* document = collection->_collection;
 
     if (mustRollback) {
       // revert all operations
@@ -236,8 +235,7 @@ static void FreeOperations(TRI_transaction_t* trx) {
       collection->setRevision(trxCollection->_originalRevision, true);
     } else if (!collection->isVolatile() && !isSingleOperation) {
       // only count logfileEntries if the collection is durable
-      document->_uncollectedLogfileEntries +=
-          trxCollection->_operations->size();
+      collection->increaseUncollectedLogfileEntries(trxCollection->_operations->size());
     }
 
     delete trxCollection->_operations;
@@ -1074,8 +1072,7 @@ int TRI_AddOperationTransaction(TRI_transaction_t* trx,
     arangodb::aql::QueryCache::instance()->invalidate(
         trx->_vocbase, collection->name());
 
-// FIXME
-    ++(collection->_collection->_uncollectedLogfileEntries);
+    collection->increaseUncollectedLogfileEntries(1);
 
     if (operation.type == TRI_VOC_DOCUMENT_OPERATION_UPDATE ||
         operation.type == TRI_VOC_DOCUMENT_OPERATION_REPLACE ||

arangod/VocBase/vocbase.cpp

@@ -56,6 +56,7 @@
 #include "VocBase/Ditch.h"
 #include "VocBase/collection.h"
 #include "VocBase/LogicalCollection.h"
+#include "VocBase/MasterPointer.h"
 #include "VocBase/replication-applier.h"
 #include "VocBase/ticks.h"
 #include "VocBase/transaction.h"

arangod/Wal/CollectorThread.cpp

@@ -670,10 +670,7 @@ int CollectorThread::processCollectionOperations(CollectorCache* cache) {
                << collection->name() << "'";
     updateDatafileStatistics(collection, cache);
 
-    document->_uncollectedLogfileEntries -= cache->totalOperationsCount;
-    if (document->_uncollectedLogfileEntries < 0) {
-      document->_uncollectedLogfileEntries = 0;
-    }
+    collection->decreaseUncollectedLogfileEntries(cache->totalOperationsCount);
 
     res = TRI_ERROR_NO_ERROR;
   } catch (arangodb::basics::Exception const& ex) {

arangod/Wal/DocumentOperation.h

@@ -4,6 +4,7 @@
 
 #include "Basics/Common.h"
 #include "VocBase/LogicalCollection.h"
+#include "VocBase/MasterPointer.h"
 #include "VocBase/MasterPointers.h"
 #include "VocBase/voc-types.h"
 #include "Wal/Marker.h"

arangod/Wal/Marker.h

@@ -30,7 +30,6 @@
 #include "VocBase/voc-types.h"
 
 #include <velocypack/Slice.h>
-#include <velocypack/velocypack-aliases.h>
 
 namespace arangodb {
 namespace wal {

arangod/Wal/RecoverState.cpp

@@ -261,8 +261,8 @@ int RecoverState::executeSingleOperation(
     return TRI_ERROR_ARANGO_COLLECTION_NOT_FOUND;
   }
 
-  TRI_voc_tick_t tickMax = collection->_collection->_tickMax;
-  if (marker->getTick() <= tickMax) {
+  TRI_voc_tick_t maxTick = collection->maxTick();
+  if (marker->getTick() <= maxTick) {
     // already transferred this marker
     return TRI_ERROR_NO_ERROR;
   }