/* delete this index. does NOT clean up the system catalog
(system.indexes or system.namespaces) -- only NamespaceIndex.
*/
void IndexDetails::kill_idx() {
string ns = indexNamespace(); // e.g. foo.coll.$ts_1
try {
string pns = parentNS(); // note we need a copy, as parentNS() won't work after the drop() below
// clean up parent namespace index cache
NamespaceDetailsTransient::get_w( pns.c_str() ).deletedIndex();
string name = indexName();
/* important to catch exception here so we can finish cleanup below. */
try {
dropNS(ns.c_str());
}
catch(DBException& ) {
log(2) << "IndexDetails::kill(): couldn't drop ns " << ns << endl;
}
head.setInvalid();
info.setInvalid();
// clean up in system.indexes. we do this last on purpose.
int n = removeFromSysIndexes(pns.c_str(), name.c_str());
wassert( n == 1 );
}
catch ( DBException &e ) {
log() << "exception in kill_idx: " << e << ", ns: " << ns << endl;
}
}
Status Database::dropCollection( const StringData& fullns ) {
LOG(1) << "dropCollection: " << fullns << endl;
CollectionTemp* collection = getCollectionTemp( fullns );
if ( !collection ) {
// collection doesn't exist
return Status::OK();
}
_initForWrites();
BackgroundOperation::assertNoBgOpInProgForNs( fullns );
if ( collection->_details->getTotalIndexCount() > 0 ) {
try {
string errmsg;
BSONObjBuilder result;
if ( !dropIndexes( collection->_details, fullns, "*", errmsg, result, true) ) {
warning() << "could not drop collection: " << fullns
<< " because of " << errmsg << endl;
return Status( ErrorCodes::InternalError, errmsg );
}
}
catch( DBException& e ) {
stringstream ss;
ss << "drop: dropIndexes for collection failed - consider trying repair ";
ss << " cause: " << e.what();
warning() << ss.str() << endl;
return Status( ErrorCodes::InternalError, ss.str() );
}
verify( collection->_details->getTotalIndexCount() == 0 );
}
LOG(1) << "\t dropIndexes done" << endl;
ClientCursor::invalidate( fullns );
Top::global.collectionDropped( fullns );
NamespaceDetailsTransient::eraseCollection( fullns.toString() );
dropNS( fullns.toString() );
scoped_lock lk( _collectionLock );
_collections.erase( fullns.toString() );
return Status::OK();
}
virtual ~Base() {
if ( !nsd() )
return;
string n( ns() );
dropNS( n );
}
