/* 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;
}
}
void IndexDetails::kill_idx() {
const string ns = indexNamespace();
const string parentns = parentNS();
close();
storage::db_remove(ns);
// Removing this index's ns from the system.indexes/namespaces catalog.
removeNamespaceFromCatalog(ns);
if (nsToCollectionSubstring(parentns) != "system.indexes") {
removeFromSysIndexes(parentns, indexName());
}
}
bool dropIndexes(NamespaceDetails *d, const char *ns, const char *name, string &errmsg, BSONObjBuilder &anObjBuilder, bool mayDeleteIdIndex) {
BackgroundOperation::assertNoBgOpInProgForNs(ns);
/* there may be pointers pointing at keys in the btree(s). kill them. */
ClientCursor::invalidate(ns);
// delete a specific index or all?
if ( *name == '*' && name[1] == 0 ) {
// this should be covered by assertNoBgOpInProgForNs above, but being paranoid
verify( d->getCompletedIndexCount() == d->getTotalIndexCount() );
LOG(4) << " d->nIndexes was " << d->getCompletedIndexCount() << std::endl;
anObjBuilder.appendNumber("nIndexesWas", d->getCompletedIndexCount() );
IndexDetails *idIndex = 0;
for ( int i = 0; i < d->getCompletedIndexCount(); i++ ) {
if ( !mayDeleteIdIndex && d->idx(i).isIdIndex() ) {
idIndex = &d->idx(i);
continue;
}
d->removeIndex( i );
i--;
}
if ( idIndex ) {
verify( d->getCompletedIndexCount() == 1 );
}
//verify( 0 == assureSysIndexesEmptied(ns, idIndex) );// TODO(erh)
assureSysIndexesEmptied(ns, idIndex);
anObjBuilder.append("msg", mayDeleteIdIndex ?
"indexes dropped for collection" :
"non-_id indexes dropped for collection");
}
else {
// delete just one index
int x = d->findIndexByName(name);
if ( x >= 0 ) {
if ( !mayDeleteIdIndex && d->idx(x).isIdIndex() ) {
errmsg = "may not delete _id index";
return false;
}
LOG(4) << " d->nIndexes was " << d->getCompletedIndexCount() << endl;
anObjBuilder.appendNumber("nIndexesWas", d->getCompletedIndexCount() );
d->removeIndex( x );
}
else {
int n = removeFromSysIndexes(ns, name); // just in case an orphaned listing there - i.e. should have been repaired but wasn't
if( n ) {
log() << "info: removeFromSysIndexes cleaned up " << n << " entries" << endl;
}
log() << "dropIndexes: " << name << " not found" << endl;
errmsg = "index not found";
return false;
}
}
return true;
}
