static void insertOne(WriteBatchExecutor::ExecInsertsState* state, WriteOpResult* result) {
invariant(state->currIndex < state->normalizedInserts.size());
const StatusWith<BSONObj>& normalizedInsert(state->normalizedInserts[state->currIndex]);
if (!normalizedInsert.isOK()) {
result->setError(toWriteError(normalizedInsert.getStatus()));
return;
}
const BSONObj& insertDoc = normalizedInsert.getValue().isEmpty() ?
state->request->getInsertRequest()->getDocumentsAt( state->currIndex ) :
normalizedInsert.getValue();
try {
if (state->lockAndCheck(result)) {
if (!state->request->isInsertIndexRequest()) {
singleInsert(state->txn, insertDoc, state->getCollection(), result);
}
else {
singleCreateIndex(state->txn, insertDoc, state->getCollection(), result);
}
}
}
catch (const DBException& ex) {
Status status(ex.toStatus());
if (ErrorCodes::isInterruption(status.code()))
throw;
result->setError(toWriteError(status));
}
// Errors release the write lock, as a matter of policy.
if (result->getError())
state->unlock();
}
static void insertOne(WriteBatchExecutor::ExecInsertsState* state, WriteOpResult* result) {
invariant(state->currIndex < state->normalizedInserts.size());
const StatusWith<BSONObj>& normalizedInsert(state->normalizedInserts[state->currIndex]);
if (!normalizedInsert.isOK()) {
result->setError(toWriteError(normalizedInsert.getStatus()));
return;
}
const BSONObj& insertDoc = normalizedInsert.getValue().isEmpty() ?
state->request->getInsertRequest()->getDocumentsAt( state->currIndex ) :
normalizedInsert.getValue();
cc().clearHasWrittenThisOperation();
{
PageFaultRetryableSection pageFaultSection;
while (true) {
try {
if (!state->lockAndCheck(result)) {
break;
}
if (!state->request->isInsertIndexRequest()) {
const PregeneratedKeys* pregen = NULL;
if ( state->pregeneratedKeys.size() > state->currIndex )
pregen = &state->pregeneratedKeys[state->currIndex];
singleInsert(insertDoc, state->getCollection(), pregen, result);
}
else {
singleCreateIndex(insertDoc, state->getCollection(), result);
}
break;
}
catch (const DBException& ex) {
Status status(ex.toStatus());
if (ErrorCodes::isInterruption(status.code()))
throw;
result->setError(toWriteError(status));
break;
}
catch (PageFaultException& pfe) {
state->unlock();
pfe.touch();
continue; // Try the operation again.
}
fassertFailed(17430);
}
} // end PageFaultRetryableSection
// Errors release the write lock, as a matter of policy.
if (result->getError())
state->unlock();
}
void WriteBatchExecutor::execInserts( const BatchedCommandRequest& request,
std::vector<WriteErrorDetail*>* errors ) {
// Bulk insert is a bit different from other bulk operations in that multiple request docs
// can be processed at once inside the write lock.
const NamespaceString nss( request.getTargetingNS() );
scoped_ptr<BatchItemRef> currInsertItem( new BatchItemRef( &request, 0 ) );
// Go through our request and do some preprocessing on insert documents outside the lock to
// validate and put them in a normalized form - i.e. put _id in front and fill in
// timestamps. The insert document may also be invalid.
// TODO: Might be more efficient to do in batches.
vector<StatusWith<BSONObj> > normalInserts;
normalizeInserts( request, &normalInserts );
while ( currInsertItem->getItemIndex() < static_cast<int>( request.sizeWriteOps() ) ) {
WriteOpResult currResult;
// Don't (re-)acquire locks and create database until it's necessary
if ( !normalInserts[currInsertItem->getItemIndex()].isOK() ) {
currResult.error =
toWriteError( normalInserts[currInsertItem->getItemIndex()].getStatus() );
}
else {
PageFaultRetryableSection pFaultSection;
////////////////////////////////////
Lock::DBWrite writeLock( nss.ns() );
////////////////////////////////////
// Check version inside of write lock
if ( checkIsMasterForCollection( nss, &currResult.error )
&& checkShardVersion( &shardingState, request, &currResult.error )
&& checkIndexConstraints( &shardingState, request, &currResult.error ) ) {
//
// Get the collection for the insert
//
scoped_ptr<Client::Context> writeContext;
Collection* collection = NULL;
try {
// Context once we're locked, to set more details in currentOp()
// TODO: better constructor?
writeContext.reset( new Client::Context( request.getNS(),
storageGlobalParams.dbpath,
false /* don't check version */) );
Database* database = writeContext->db();
dassert( database );
collection = database->getCollection( nss.ns() );
if ( !collection ) {
// Implicitly create if it doesn't exist
collection = database->createCollection( nss.ns() );
if ( !collection ) {
currResult.error =
toWriteError( Status( ErrorCodes::InternalError,
"could not create collection" ) );
}
}
}
catch ( const DBException& ex ) {
Status status(ex.toStatus());
if (ErrorCodes::isInterruption(status.code())) {
throw;
}
currResult.error = toWriteError(status);
}
//
// Perform writes inside write lock
//
while ( collection
&& currInsertItem->getItemIndex()
< static_cast<int>( request.sizeWriteOps() ) ) {
//
// BEGIN CURRENT OP
//
scoped_ptr<CurOp> currentOp( beginCurrentOp( _client, *currInsertItem ) );
incOpStats( *currInsertItem );
// Get the actual document we want to write, assuming it's valid
const StatusWith<BSONObj>& normalInsert = //
normalInserts[currInsertItem->getItemIndex()];
const BSONObj& normalInsertDoc =
normalInsert.getValue().isEmpty() ?
currInsertItem->getDocument() : normalInsert.getValue();
if ( !normalInsert.isOK() ) {
// This insert failed on preprocessing
currResult.error = toWriteError( normalInsert.getStatus() );
}
else if ( !request.isInsertIndexRequest() ) {
// Try the insert
singleInsert( *currInsertItem,
normalInsertDoc,
collection,
&currResult );
}
else {
// Try the create index
singleCreateIndex( *currInsertItem,
normalInsertDoc,
collection,
&currResult );
}
//
// END CURRENT OP
//
finishCurrentOp( _client, currentOp.get(), currResult.error );
// Faults release the write lock
if ( currResult.fault )
break;
// In general, we might have stats and errors
incWriteStats( *currInsertItem,
currResult.stats,
currResult.error,
currentOp.get() );
// Errors release the write lock
if ( currResult.error )
break;
// Increment in the write lock and reset the stats for next time
currInsertItem.reset( new BatchItemRef( &request,
currInsertItem->getItemIndex()
+ 1 ) );
currResult.reset();
// Destruct curop so that our parent curop is restored, so that we
// record the yield count in the parent.
currentOp.reset(NULL);
// yield sometimes
int micros = ClientCursor::suggestYieldMicros();
if (micros > 0) {
ClientCursor::staticYield(micros, "", NULL);
}
}
}
} // END WRITE LOCK
//
// Store the current error if it exists
//
if ( currResult.error ) {
errors->push_back( currResult.releaseError() );
errors->back()->setIndex( currInsertItem->getItemIndex() );
// Break early for ordered batches
if ( request.getOrdered() )
break;
}
//
// Fault or increment
//
if ( currResult.fault ) {
// Check page fault out of lock
currResult.fault->touch();
}
else {
// Increment if not a fault
currInsertItem.reset( new BatchItemRef( &request,
currInsertItem->getItemIndex() + 1 ) );
}
}
}