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arangodb
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initial implementation of count()

This commit is contained in:
jsteemann 2017-03-31 14:05:44 +02:00
parent ab10a19974
commit 794cace842
7 changed files with 141 additions and 46 deletions
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98
arangod/RocksDBEngine/RocksDBCollection.cpp
View File

@ -409,37 +409,37 @@ int RocksDBCollection::insert(arangodb::transaction::Methods* trx,
}
transaction::BuilderLeaser builder(trx);
VPackSlice newSlice;
int res = TRI_ERROR_NO_ERROR;
if (options.recoveryData == nullptr) {
res = newObjectForInsert(trx, slice, fromSlice, toSlice, isEdgeCollection,
int res = newObjectForInsert(trx, slice, fromSlice, toSlice, isEdgeCollection,
*builder.get(), options.isRestore);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
newSlice = builder->slice();
} else {
TRI_ASSERT(slice.isObject());
// we can get away with the fast hash function here, as key values are
// restricted to strings
newSlice = slice;
}
VPackSlice newSlice = builder->slice();
TRI_voc_rid_t revisionId =
transaction::helpers::extractRevFromDocument(newSlice);
res = insertDocument(trx, revisionId, newSlice, options.waitForSync);
arangodb::Result result(res);
RocksDBSavePoint guard(rocksTransaction(trx));
if (result.ok()) {
result = lookupRevisionVPack(revisionId, trx, mdr);
}
res = insertDocument(trx, revisionId, newSlice, options.waitForSync);
if (res == TRI_ERROR_NO_ERROR) {
Result result = lookupRevisionVPack(revisionId, trx, mdr);
if (!result.ok()) {
return result.errorNumber();
}
static_cast<RocksDBTransactionState*>(trx->state())->addOperation(_logicalCollection->cid(), TRI_VOC_DOCUMENT_OPERATION_INSERT, newSlice.byteSize());
guard.commit();
}
return res;
}
int RocksDBCollection::update(arangodb::transaction::Methods* trx,
arangodb::velocypack::Slice const newSlice,
arangodb::ManagedDocumentResult& result,
arangodb::ManagedDocumentResult& mdr,
OperationOptions& options,
TRI_voc_tick_t& resultMarkerTick, bool /*lock*/,
TRI_voc_rid_t& prevRev,
@ -475,9 +475,11 @@ int RocksDBCollection::update(arangodb::transaction::Methods* trx,
}
if (newSlice.length() <= 1) {
// no need to do anything
result = std::move(previous);
// shortcut. no need to do anything
previous.clone(mdr);
if (_logicalCollection->waitForSync()) {
trx->state()->waitForSync(true);
options.waitForSync = true;
}
return TRI_ERROR_NO_ERROR;
@ -499,13 +501,22 @@ int RocksDBCollection::update(arangodb::transaction::Methods* trx,
}
}
RocksDBSavePoint guard(rocksTransaction(trx));
VPackSlice const newDoc(builder->slice());
res = updateDocument(trx, oldRevisionId, oldDoc, revisionId, newDoc,
options.waitForSync);
if (res == TRI_ERROR_NO_ERROR) {
lookupRevisionVPack(revisionId, trx, result);
Result result = lookupRevisionVPack(revisionId, trx, mdr);
if (!result.ok()) {
return result.errorNumber();
}
static_cast<RocksDBTransactionState*>(trx->state())->addOperation(_logicalCollection->cid(), TRI_VOC_DOCUMENT_OPERATION_UPDATE, newDoc.byteSize());
guard.commit();
}
return res;
@ -520,7 +531,6 @@ int RocksDBCollection::replace(
arangodb::velocypack::Slice const toSlice) {
resultMarkerTick = 0;
arangodb::Result result;
bool const isEdgeCollection =
(_logicalCollection->type() == TRI_COL_TYPE_EDGE);
@ -571,15 +581,25 @@ int RocksDBCollection::replace(
}
}
RocksDBSavePoint guard(rocksTransaction(trx));
res = updateDocument(trx, oldRevisionId, oldDoc, revisionId,
VPackSlice(builder->slice()), options.waitForSync);
result = Result(res);
if (result.ok()) {
result = lookupRevisionVPack(revisionId, trx, mdr);
}
if (res == TRI_ERROR_NO_ERROR) {
Result result = lookupRevisionVPack(revisionId, trx, mdr);
if (!result.ok()) {
return result.errorNumber();
}
static_cast<RocksDBTransactionState*>(trx->state())->addOperation(_logicalCollection->cid(), TRI_VOC_DOCUMENT_OPERATION_REPLACE, VPackSlice(builder->slice()).byteSize());
guard.commit();
}
return res;
}
int RocksDBCollection::remove(arangodb::transaction::Methods* trx,
arangodb::velocypack::Slice const slice,
arangodb::ManagedDocumentResult& previous,
@ -626,8 +646,15 @@ int RocksDBCollection::remove(arangodb::transaction::Methods* trx,
}
}
RocksDBSavePoint guard(rocksTransaction(trx));
res = removeDocument(trx, oldRevisionId, oldDoc, options.waitForSync);
if (res == TRI_ERROR_NO_ERROR) {
static_cast<RocksDBTransactionState*>(trx->state())->addOperation(_logicalCollection->cid(), TRI_VOC_DOCUMENT_OPERATION_REMOVE, oldDoc.byteSize());
guard.commit();
}
return res;
}
@ -752,7 +779,6 @@ int RocksDBCollection::insertDocument(arangodb::transaction::Methods* trx,
RocksDBValue value(RocksDBValue::Document(doc));
rocksdb::Transaction* rtrx = rocksTransaction(trx);
RocksDBSavePoint guard(rtrx);
LOG_TOPIC(ERR, Logger::FIXME)
<< "INSERT DOCUMENT. COLLECTION '" << _logicalCollection->name()
@ -788,7 +814,7 @@ int RocksDBCollection::insertDocument(arangodb::transaction::Methods* trx,
}
}
if (result != TRI_ERROR_NO_ERROR) {
if (result == TRI_ERROR_NO_ERROR) {
if (_logicalCollection->waitForSync()) {
waitForSync = true;
}
@ -813,8 +839,6 @@ int RocksDBCollection::removeDocument(arangodb::transaction::Methods* trx,
rocksdb::Transaction* rtrx = rocksTransaction(trx);
RocksDBSavePoint guard(rtrx);
rtrx->Delete(key.string());
auto indexes = _indexes;
@ -833,7 +857,7 @@ int RocksDBCollection::removeDocument(arangodb::transaction::Methods* trx,
}
}
if (result != TRI_ERROR_NO_ERROR) {
if (result == TRI_ERROR_NO_ERROR) {
if (_logicalCollection->waitForSync()) {
waitForSync = true;
}
@ -850,7 +874,6 @@ int RocksDBCollection::removeDocument(arangodb::transaction::Methods* trx,
/// the key must be a string slice, no revision check is performed
int RocksDBCollection::lookupDocument(transaction::Methods* trx, VPackSlice key,
ManagedDocumentResult& mdr) {
arangodb::Result result;
if (!key.isString()) {
return TRI_ERROR_ARANGO_DOCUMENT_KEY_BAD;
}
@ -859,7 +882,7 @@ int RocksDBCollection::lookupDocument(transaction::Methods* trx, VPackSlice key,
TRI_voc_rid_t revisionId = token.revisionId();
if (revisionId > 0) {
result = lookupRevisionVPack(revisionId, trx, mdr);
Result result = lookupRevisionVPack(revisionId, trx, mdr);
return result.errorNumber();
}
@ -876,9 +899,6 @@ int RocksDBCollection::updateDocument(transaction::Methods* trx,
TRI_ASSERT(trx->state()->isRunning());
TRI_ASSERT(!ServerState::instance()->isCoordinator());
rocksdb::Transaction* rtrx = rocksTransaction(trx);
RocksDBSavePoint guard(rtrx);
LOG_TOPIC(ERR, Logger::FIXME)
<< "UPDATE DOCUMENT. COLLECTION '" << _logicalCollection->name()
<< "', OBJECTID: " << _objectId << ", OLDREVISIONID: " << oldRevisionId
@ -935,3 +955,11 @@ arangodb::Result RocksDBCollection::lookupRevisionVPack(
}
return result;
}
void RocksDBCollection::adjustNumberDocuments(int64_t adjustment) {
if (adjustment < 0) {
_numberDocuments -= static_cast<uint64_t>(-adjustment);
} else if (adjustment > 0) {
_numberDocuments += static_cast<uint64_t>(adjustment);
}
}

1
arangod/RocksDBEngine/RocksDBCollection.h
View File

@ -170,6 +170,7 @@ class RocksDBCollection final : public PhysicalCollection {
void deferDropCollection(
std::function<bool(LogicalCollection*)> callback) override;
void adjustNumberDocuments(int64_t adjustment);
uint64_t objectId() const { return _objectId; }
Result lookupDocumentToken(transaction::Methods* trx, arangodb::StringRef key,

28
arangod/RocksDBEngine/RocksDBTransactionCollection.cpp
View File

@ -39,7 +39,10 @@ RocksDBTransactionCollection::RocksDBTransactionCollection(TransactionState* trx
AccessMode::Type accessType)
: TransactionCollection(trx, cid),
_accessType(accessType),
_numOperations(0) {}
_operationSize(0),
_numInserts(0),
_numUpdates(0),
_numRemoves(0) {}
RocksDBTransactionCollection::~RocksDBTransactionCollection() {}
@ -86,7 +89,7 @@ bool RocksDBTransactionCollection::isLocked() const {
/// @brief whether or not any write operations for the collection happened
bool RocksDBTransactionCollection::hasOperations() const {
return (_numOperations > 0);
return (_numInserts > 0 || _numRemoves > 0 || _numUpdates > 0);
}
void RocksDBTransactionCollection::freeOperations(transaction::Methods* /*activeTrx*/, bool /*mustRollback*/) {}
@ -153,3 +156,24 @@ void RocksDBTransactionCollection::release() {
_collection = nullptr;
}
}
/// @brief add an operation for a transaction collection
void RocksDBTransactionCollection::addOperation(TRI_voc_document_operation_e operationType,
uint64_t operationSize) {
switch (operationType) {
case TRI_VOC_DOCUMENT_OPERATION_UNKNOWN:
break;
case TRI_VOC_DOCUMENT_OPERATION_INSERT:
++_numInserts;
break;
case TRI_VOC_DOCUMENT_OPERATION_UPDATE:
case TRI_VOC_DOCUMENT_OPERATION_REPLACE:
++_numUpdates;
break;
case TRI_VOC_DOCUMENT_OPERATION_REMOVE:
++_numRemoves;
break;
}
_operationSize += operationSize;
}

12
arangod/RocksDBEngine/RocksDBTransactionCollection.h
View File

@ -69,9 +69,19 @@ class RocksDBTransactionCollection final : public TransactionCollection {
void unuse(int nestingLevel) override;
void release() override;
uint64_t numInserts() const { return _numInserts; }
uint64_t numUpdates() const { return _numUpdates; }
uint64_t numRemoves() const { return _numRemoves; }
/// @brief add an operation for a transaction collection
void addOperation(TRI_voc_document_operation_e operationType, uint64_t operationSize);
private:
AccessMode::Type _accessType; // access type (read|write)
uint64_t _numOperations;
uint64_t _operationSize;
uint64_t _numInserts;
uint64_t _numUpdates;
uint64_t _numRemoves;
};
}

23
arangod/RocksDBEngine/RocksDBTransactionState.cpp
View File

@ -32,6 +32,7 @@
#include "RocksDBEngine/RocksDBCollection.h"
#include "RocksDBEngine/RocksDBCommon.h"
#include "RocksDBEngine/RocksDBEngine.h"
#include "RocksDBEngine/RocksDBTransactionCollection.h"
#include "StorageEngine/EngineSelectorFeature.h"
#include "StorageEngine/StorageEngine.h"
#include "StorageEngine/TransactionCollection.h"
@ -52,7 +53,9 @@ using namespace arangodb;
struct RocksDBTransactionData final : public TransactionData {};
RocksDBSavePoint::RocksDBSavePoint(rocksdb::Transaction* trx)
: _trx(trx), _committed(false) {}
: _trx(trx), _committed(false) {
_trx->SetSavePoint();
}
RocksDBSavePoint::~RocksDBSavePoint() {
if (!_committed) {
@ -160,6 +163,13 @@ Result RocksDBTransactionState::commitTransaction(
abortTransaction(activeTrx);
return result;
}
for (auto& trxCollection : _collections) {
RocksDBTransactionCollection* collection = static_cast<RocksDBTransactionCollection*>(trxCollection);
int64_t adjustment = collection->numInserts() - collection->numRemoves();
static_cast<RocksDBCollection*>(trxCollection->collection()->getPhysical())->adjustNumberDocuments(adjustment);
}
_rocksTransaction.reset();
if (_cacheTx != nullptr) {
CacheManagerFeature::MANAGER->endTransaction(_cacheTx);
@ -216,8 +226,17 @@ Result RocksDBTransactionState::abortTransaction(
}
/// @brief add an operation for a transaction collection
void RocksDBTransactionState::addOperation(TRI_voc_document_operation_e operationType,
void RocksDBTransactionState::addOperation(TRI_voc_cid_t cid,
TRI_voc_document_operation_e operationType,
uint64_t operationSize) {
auto collection = static_cast<RocksDBTransactionCollection*>(findCollection(cid));
if (collection == nullptr) {
THROW_ARANGO_EXCEPTION_MESSAGE(TRI_ERROR_INTERNAL, "collection not found in transaction state");
}
collection->addOperation(operationType, operationSize);
switch (operationType) {
case TRI_VOC_DOCUMENT_OPERATION_UNKNOWN:
break;

2
arangod/RocksDBEngine/RocksDBTransactionState.h
View File

@ -95,7 +95,7 @@ class RocksDBTransactionState final : public TransactionState {
}
/// @brief add an operation for a transaction collection
void addOperation(TRI_voc_document_operation_e operationType, uint64_t operationSize);
void addOperation(TRI_voc_cid_t collectionId, TRI_voc_document_operation_e operationType, uint64_t operationSize);
rocksdb::Transaction* rocksTransaction() {
TRI_ASSERT(_rocksTransaction != nullptr);

13
arangod/VocBase/ManagedDocumentResult.h
View File

@ -65,6 +65,19 @@ class ManagedDocumentResult {
ManagedDocumentResult(ManagedDocumentResult&& other) = delete;
void clone(ManagedDocumentResult& cloned) const {
cloned.reset();
if (_useString) {
cloned._useString = true;
cloned._string = _string;
cloned._lastRevisionId = _lastRevisionId;
} else if (_managed) {
cloned.setManaged(_vpack, _lastRevisionId);
} else {
cloned.setUnmanaged(_vpack, _lastRevisionId);
}
}
inline uint8_t const* vpack() const {
TRI_ASSERT(_vpack != nullptr);
return _vpack;