static BSONObj buildErrReply(const DBException& ex) {
BSONObjBuilder errB;
errB.append("$err", ex.what());
errB.append("code", ex.getCode());
if (!ex._shard.empty()) {
errB.append("shard", ex._shard);
}
return errB.obj();
}
Database::Database(TransactionExperiment* txn, const char *nm, bool& newDb, const string& path )
: _name(nm), _path(path),
_namespaceIndex( _path, _name ),
_extentManager(new MmapV1ExtentManager(_name, _path, storageGlobalParams.directoryperdb)),
_profileName(_name + ".system.profile"),
_namespacesName(_name + ".system.namespaces"),
_indexesName(_name + ".system.indexes"),
_collectionLock( "Database::_collectionLock" )
{
Status status = validateDBName( _name );
if ( !status.isOK() ) {
warning() << "tried to open invalid db: " << _name << endl;
uasserted( 10028, status.toString() );
}
try {
newDb = _namespaceIndex.exists();
_profile = serverGlobalParams.defaultProfile;
checkDuplicateUncasedNames(true);
// If already exists, open. Otherwise behave as if empty until
// there's a write, then open.
if (!newDb) {
_namespaceIndex.init( txn );
openAllFiles(txn);
// upgrade freelist
string oldFreeList = _name + ".$freelist";
NamespaceDetails* details = _namespaceIndex.details( oldFreeList );
if ( details ) {
if ( !details->firstExtent().isNull() ) {
_extentManager->freeExtents(txn,
details->firstExtent(),
details->lastExtent());
}
_namespaceIndex.kill_ns( txn, oldFreeList );
}
}
_magic = 781231;
}
catch(std::exception& e) {
log() << "warning database " << path << " " << nm << " could not be opened" << endl;
DBException* dbe = dynamic_cast<DBException*>(&e);
if ( dbe != 0 ) {
log() << "DBException " << dbe->getCode() << ": " << e.what() << endl;
}
else {
log() << e.what() << endl;
}
_extentManager.reset();
throw;
}
}
/**
* Returns true if the operation can continue.
*/
bool handleError(OperationContext* txn,
const DBException& ex,
const ParsedWriteOp& wholeOp,
WriteResult* out) {
LastError::get(txn->getClient()).setLastError(ex.getCode(), ex.getInfo().msg);
auto& curOp = *CurOp::get(txn);
curOp.debug().exceptionInfo = ex.getInfo();
if (ErrorCodes::isInterruption(ErrorCodes::Error(ex.getCode()))) {
throw; // These have always failed the whole batch.
}
if (ErrorCodes::isStaleShardingError(ErrorCodes::Error(ex.getCode()))) {
auto staleConfigException = dynamic_cast<const SendStaleConfigException*>(&ex);
if (!staleConfigException) {
// We need to get extra info off of the SCE, but some common patterns can result in the
// exception being converted to a Status then rethrown as a UserException, losing the
// info we need. It would be a bug if this happens so we want to detect it in testing,
// but it isn't severe enough that we should bring down the server if it happens in
// production.
dassert(staleConfigException);
msgassertedNoTrace(35475,
str::stream()
<< "Got a StaleConfig error but exception was the wrong type: "
<< demangleName(typeid(ex)));
}
ShardingState::get(txn)
->onStaleShardVersion(txn, wholeOp.ns, staleConfigException->getVersionReceived());
out->staleConfigException =
stdx::make_unique<SendStaleConfigException>(*staleConfigException);
return false;
}
out->results.emplace_back(ex.toStatus());
return wholeOp.continueOnError;
}
Database::Database(const char *nm, bool& newDb, const string& path )
: _name(nm), _path(path),
_namespaceIndex( _path, _name ),
_extentManager( _name, _path, directoryperdb /* this is a global right now */ ),
_profileName(_name + ".system.profile"),
_namespacesName(_name + ".system.namespaces"),
_collectionLock( "Database::_collectionLock" )
{
Status status = validateDBName( _name );
if ( !status.isOK() ) {
warning() << "tried to open invalid db: " << _name << endl;
uasserted( 10028, status.toString() );
}
try {
newDb = _namespaceIndex.exists();
_profile = cmdLine.defaultProfile;
checkDuplicateUncasedNames(true);
// If already exists, open. Otherwise behave as if empty until
// there's a write, then open.
if (!newDb) {
_namespaceIndex.init();
openAllFiles();
}
_magic = 781231;
}
catch(std::exception& e) {
log() << "warning database " << path << " " << nm << " could not be opened" << endl;
DBException* dbe = dynamic_cast<DBException*>(&e);
if ( dbe != 0 ) {
log() << "DBException " << dbe->getCode() << ": " << e.what() << endl;
}
else {
log() << e.what() << endl;
}
_extentManager.reset();
throw;
}
}
static bool isAuthenticationException( const DBException& ex ) {
return ex.getCode() == ErrorCodes::AuthenticationFailed;
}
