void DatabaseCloner::_collectionClonerCallback(const Status& status,
const NamespaceString& nss) {
boost::lock_guard<boost::mutex> lk(_mutex);
_active = false;
// Forward collection cloner result to caller.
// Failure to clone a collection does not stop the database cloner
// from cloning the rest of the collections in the listCollections result.
_collectionWork(status, nss);
_currentCollectionClonerIter++;
LOG(1) << " cloning collection " << _currentCollectionClonerIter->getSourceNamespace();
if (_currentCollectionClonerIter != _collectionCloners.end()) {
Status startStatus = _startCollectionCloner(*_currentCollectionClonerIter);
if (!startStatus.isOK()) {
LOG(1) << " failed to start collection cloning on "
<< _currentCollectionClonerIter->getSourceNamespace()
<< ": " << startStatus;
_work(startStatus);
return;
}
_active = true;
return;
}
_work(Status::OK());
}
void DatabaseCloner::_collectionClonerCallback(const Status& status, const NamespaceString& nss) {
auto newStatus = status;
UniqueLock lk(_mutex);
if (!status.isOK()) {
newStatus = {status.code(),
str::stream() << "While cloning collection '" << nss.toString()
<< "' there was an error '"
<< status.reason()
<< "'"
};
_failedNamespaces.push_back({newStatus, nss});
}
++_stats.clonedCollections;
// Forward collection cloner result to caller.
// Failure to clone a collection does not stop the database cloner
// from cloning the rest of the collections in the listCollections result.
lk.unlock();
_collectionWork(newStatus, nss);
lk.lock();
_currentCollectionClonerIter++;
if (_currentCollectionClonerIter != _collectionCloners.end()) {
Status startStatus = _startCollectionCloner(*_currentCollectionClonerIter);
if (!startStatus.isOK()) {
LOG(1) << " failed to start collection cloning on "
<< _currentCollectionClonerIter->getSourceNamespace() << ": "
<< redact(startStatus);
_finishCallback_inlock(lk, startStatus);
return;
}
return;
}
Status finalStatus(Status::OK());
if (_failedNamespaces.size() > 0) {
finalStatus = {ErrorCodes::InitialSyncFailure,
str::stream() << "Failed to clone " << _failedNamespaces.size()
<< " collection(s) in '"
<< _dbname
<< "' from "
<< _source.toString()
};
}
_finishCallback_inlock(lk, finalStatus);
}
