BSONObj validateIndexKey(const BSONObj& a, void* data) {
BSONObj key = a[0].Obj();
Status indexValid = validateKeyPattern(key);
if (!indexValid.isOK()) {
return BSON("" << BSON("ok" << false << "errmsg" << indexValid.codeString()));
}
return BSON("" << BSON("ok" << true));
}
void repairDatabasesAndCheckVersion(OperationContext* txn) {
LOG(1) << "enter repairDatabases (to check pdfile version #)";
ScopedTransaction transaction(txn, MODE_X);
Lock::GlobalWrite lk(txn->lockState());
vector<string> dbNames;
StorageEngine* storageEngine = txn->getServiceContext()->getGlobalStorageEngine();
storageEngine->listDatabases(&dbNames);
// Repair all databases first, so that we do not try to open them if they are in bad shape
if (storageGlobalParams.repair) {
invariant(!storageGlobalParams.readOnly);
for (vector<string>::const_iterator i = dbNames.begin(); i != dbNames.end(); ++i) {
const string dbName = *i;
LOG(1) << " Repairing database: " << dbName;
fassert(18506, repairDatabase(txn, storageEngine, dbName));
}
}
const repl::ReplSettings& replSettings = repl::getGlobalReplicationCoordinator()->getSettings();
// On replica set members we only clear temp collections on DBs other than "local" during
// promotion to primary. On pure slaves, they are only cleared when the oplog tells them
// to. The local DB is special because it is not replicated. See SERVER-10927 for more
// details.
const bool shouldClearNonLocalTmpCollections =
!(checkIfReplMissingFromCommandLine(txn) || replSettings.usingReplSets() ||
replSettings.isSlave());
const bool shouldDoCleanupForSERVER23299 = isSubjectToSERVER23299(txn);
for (vector<string>::const_iterator i = dbNames.begin(); i != dbNames.end(); ++i) {
const string dbName = *i;
LOG(1) << " Recovering database: " << dbName;
Database* db = dbHolder().openDb(txn, dbName);
invariant(db);
// First thing after opening the database is to check for file compatibility,
// otherwise we might crash if this is a deprecated format.
auto status = db->getDatabaseCatalogEntry()->currentFilesCompatible(txn);
if (!status.isOK()) {
if (status.code() == ErrorCodes::CanRepairToDowngrade) {
// Convert CanRepairToDowngrade statuses to MustUpgrade statuses to avoid logging a
// potentially confusing and inaccurate message.
//
// TODO SERVER-24097: Log a message informing the user that they can start the
// current version of mongod with --repair and then proceed with normal startup.
status = {ErrorCodes::MustUpgrade, status.reason()};
}
severe() << "Unable to start mongod due to an incompatibility with the data files and"
" this version of mongod: "
<< redact(status);
severe() << "Please consult our documentation when trying to downgrade to a previous"
" major release";
quickExit(EXIT_NEED_UPGRADE);
return;
}
// Check if admin.system.version contains an invalid featureCompatibilityVersion.
// If a valid featureCompatibilityVersion is present, cache it as a server parameter.
if (dbName == "admin") {
if (Collection* versionColl =
db->getCollection(FeatureCompatibilityVersion::kCollection)) {
BSONObj featureCompatibilityVersion;
if (Helpers::findOne(txn,
versionColl,
BSON("_id" << FeatureCompatibilityVersion::kParameterName),
featureCompatibilityVersion)) {
auto version = FeatureCompatibilityVersion::parse(featureCompatibilityVersion);
if (!version.isOK()) {
severe() << version.getStatus();
fassertFailedNoTrace(40283);
}
serverGlobalParams.featureCompatibilityVersion.store(version.getValue());
}
}
}
// Major versions match, check indexes
const string systemIndexes = db->name() + ".system.indexes";
Collection* coll = db->getCollection(systemIndexes);
unique_ptr<PlanExecutor> exec(
InternalPlanner::collectionScan(txn, systemIndexes, coll, PlanExecutor::YIELD_MANUAL));
BSONObj index;
PlanExecutor::ExecState state;
while (PlanExecutor::ADVANCED == (state = exec->getNext(&index, NULL))) {
const BSONObj key = index.getObjectField("key");
const string plugin = IndexNames::findPluginName(key);
if (db->getDatabaseCatalogEntry()->isOlderThan24(txn)) {
if (IndexNames::existedBefore24(plugin)) {
continue;
}
log() << "Index " << index << " claims to be of type '" << plugin << "', "
<< "which is either invalid or did not exist before v2.4. "
<< "See the upgrade section: "
<< "http://dochub.mongodb.org/core/upgrade-2.4" << startupWarningsLog;
}
const Status keyStatus = validateKeyPattern(key);
if (!keyStatus.isOK()) {
log() << "Problem with index " << index << ": " << redact(keyStatus)
<< " This index can still be used however it cannot be rebuilt."
<< " For more info see"
<< " http://dochub.mongodb.org/core/index-validation" << startupWarningsLog;
}
if (index["v"].isNumber() && index["v"].numberInt() == 0) {
log() << "WARNING: The index: " << index << " was created with the deprecated"
<< " v:0 format. This format will not be supported in a future release."
<< startupWarningsLog;
log() << "\t To fix this, you need to rebuild this index."
<< " For instructions, see http://dochub.mongodb.org/core/rebuild-v0-indexes"
<< startupWarningsLog;
}
}
// Non-yielding collection scans from InternalPlanner will never error.
invariant(PlanExecutor::IS_EOF == state);
if (replSettings.usingReplSets()) {
// We only care about the _id index if we are in a replset
checkForIdIndexes(txn, db);
// Ensure oplog is capped (mmap does not guarantee order of inserts on noncapped
// collections)
if (db->name() == "local") {
checkForCappedOplog(txn, db);
}
}
if (shouldDoCleanupForSERVER23299) {
handleSERVER23299ForDb(txn, db);
}
if (!storageGlobalParams.readOnly &&
(shouldClearNonLocalTmpCollections || dbName == "local")) {
db->clearTmpCollections(txn);
}
}
LOG(1) << "done repairDatabases";
}
StatusWith<CompactStats> Collection::compact( const CompactOptions* compactOptions ) {
if ( isCapped() )
return StatusWith<CompactStats>( ErrorCodes::BadValue,
"cannot compact capped collection" );
if ( _indexCatalog.numIndexesInProgress() )
return StatusWith<CompactStats>( ErrorCodes::BadValue,
"cannot compact when indexes in progress" );
NamespaceDetails* d = details();
// this is a big job, so might as well make things tidy before we start just to be nice.
getDur().commitIfNeeded();
list<DiskLoc> extents;
for( DiskLoc L = d->firstExtent(); !L.isNull(); L = L.ext()->xnext )
extents.push_back(L);
log() << "compact " << extents.size() << " extents" << endl;
// same data, but might perform a little different after compact?
_infoCache.reset();
vector<BSONObj> indexSpecs;
{
IndexCatalog::IndexIterator ii( _indexCatalog.getIndexIterator( false ) );
while ( ii.more() ) {
IndexDescriptor* descriptor = ii.next();
const BSONObj spec = _compactAdjustIndexSpec(descriptor->infoObj());
const BSONObj key = spec.getObjectField("key");
const Status keyStatus = validateKeyPattern(key);
if (!keyStatus.isOK()) {
return StatusWith<CompactStats>(
ErrorCodes::CannotCreateIndex,
str::stream() << "Cannot rebuild index " << spec << ": "
<< keyStatus.reason()
<< " For more info see"
<< " http://dochub.mongodb.org/core/index-validation");
}
indexSpecs.push_back(spec);
}
}
log() << "compact orphan deleted lists" << endl;
d->orphanDeletedList();
// Start over from scratch with our extent sizing and growth
d->setLastExtentSize( 0 );
// before dropping indexes, at least make sure we can allocate one extent!
// this will allocate an extent and add to free list
// if it cannot, it will throw an exception
increaseStorageSize( _details->lastExtentSize(), true );
// note that the drop indexes call also invalidates all clientcursors for the namespace,
// which is important and wanted here
log() << "compact dropping indexes" << endl;
Status status = _indexCatalog.dropAllIndexes( true );
if ( !status.isOK() ) {
return StatusWith<CompactStats>( status );
}
getDur().commitIfNeeded();
killCurrentOp.checkForInterrupt();
CompactStats stats;
MultiIndexBlock multiIndexBlock( this );
status = multiIndexBlock.init( indexSpecs );
if ( !status.isOK() )
return StatusWith<CompactStats>( status );
// reset data size and record counts to 0 for this namespace
// as we're about to tally them up again for each new extent
d->setStats( 0, 0 );
ProgressMeterHolder pm(cc().curop()->setMessage("compact extent",
"Extent Compacting Progress",
extents.size()));
int extentNumber = 0;
for( list<DiskLoc>::iterator i = extents.begin(); i != extents.end(); i++ ) {
_compactExtent(*i, extentNumber++, multiIndexBlock, compactOptions, &stats );
pm.hit();
}
verify( d->firstExtent().ext()->xprev.isNull() );
// indexes will do their own progress meter?
pm.finished();
log() << "starting index commits";
status = multiIndexBlock.commit();
if ( !status.isOK() )
return StatusWith<CompactStats>( status );
return StatusWith<CompactStats>( stats );
}
StatusWith<CompactStats> Collection::compact( OperationContext* txn,
const CompactOptions* compactOptions ) {
if ( !_recordStore->compactSupported() )
return StatusWith<CompactStats>( ErrorCodes::BadValue,
str::stream() <<
"cannot compact collection with record store: " <<
_recordStore->name() );
if ( _indexCatalog.numIndexesInProgress() )
return StatusWith<CompactStats>( ErrorCodes::BadValue,
"cannot compact when indexes in progress" );
// same data, but might perform a little different after compact?
_infoCache.reset();
vector<BSONObj> indexSpecs;
{
IndexCatalog::IndexIterator ii( _indexCatalog.getIndexIterator( false ) );
while ( ii.more() ) {
IndexDescriptor* descriptor = ii.next();
const BSONObj spec = _compactAdjustIndexSpec(descriptor->infoObj());
const BSONObj key = spec.getObjectField("key");
const Status keyStatus = validateKeyPattern(key);
if (!keyStatus.isOK()) {
return StatusWith<CompactStats>(
ErrorCodes::CannotCreateIndex,
str::stream() << "Cannot compact collection due to invalid index "
<< spec << ": " << keyStatus.reason() << " For more info see"
<< " http://dochub.mongodb.org/core/index-validation");
}
indexSpecs.push_back(spec);
}
}
// note that the drop indexes call also invalidates all clientcursors for the namespace,
// which is important and wanted here
log() << "compact dropping indexes" << endl;
Status status = _indexCatalog.dropAllIndexes(txn, true);
if ( !status.isOK() ) {
return StatusWith<CompactStats>( status );
}
txn->checkForInterrupt();
CompactStats stats;
MultiIndexBlock multiIndexBlock(txn, this);
status = multiIndexBlock.init( indexSpecs );
if ( !status.isOK() )
return StatusWith<CompactStats>( status );
MyCompactAdaptor adaptor(this, &multiIndexBlock);
_recordStore->compact( txn, &adaptor, compactOptions, &stats );
log() << "starting index commits";
status = multiIndexBlock.commit();
if ( !status.isOK() )
return StatusWith<CompactStats>( status );
return StatusWith<CompactStats>( stats );
}
// ran at startup.
static void repairDatabasesAndCheckVersion(bool shouldClearNonLocalTmpCollections) {
// LastError * le = lastError.get( true );
LOG(1) << "enter repairDatabases (to check pdfile version #)" << endl;
Lock::GlobalWrite lk;
vector< string > dbNames;
getDatabaseNames( dbNames );
for ( vector< string >::iterator i = dbNames.begin(); i != dbNames.end(); ++i ) {
string dbName = *i;
LOG(1) << "\t" << dbName << endl;
Client::Context ctx( dbName );
DataFile *p = ctx.db()->getExtentManager().getFile( 0 );
DataFileHeader *h = p->getHeader();
if ( replSettings.usingReplSets() ) {
// we only care about the _id index if we are in a replset
checkForIdIndexes(ctx.db());
}
if (shouldClearNonLocalTmpCollections || dbName == "local")
ctx.db()->clearTmpCollections();
if (!h->isCurrentVersion() || mongodGlobalParams.repair) {
if( h->version <= 0 ) {
uasserted(14026,
str::stream() << "db " << dbName << " appears corrupt pdfile version: " << h->version
<< " info: " << h->versionMinor << ' ' << h->fileLength);
}
if ( !h->isCurrentVersion() ) {
log() << "****" << endl;
log() << "****" << endl;
log() << "need to upgrade database " << dbName << " "
<< "with pdfile version " << h->version << "." << h->versionMinor << ", "
<< "new version: "
<< PDFILE_VERSION << "." << PDFILE_VERSION_MINOR_22_AND_OLDER
<< endl;
}
if (mongodGlobalParams.upgrade) {
// QUESTION: Repair even if file format is higher version than code?
doDBUpgrade( dbName, h );
}
else {
log() << "\t Not upgrading, exiting" << endl;
log() << "\t run --upgrade to upgrade dbs, then start again" << endl;
log() << "****" << endl;
dbexit( EXIT_NEED_UPGRADE );
mongodGlobalParams.upgrade = 1;
return;
}
}
else {
const string systemIndexes = cc().database()->name() + ".system.indexes";
auto_ptr<Runner> runner(InternalPlanner::collectionScan(systemIndexes));
BSONObj index;
Runner::RunnerState state;
while (Runner::RUNNER_ADVANCED == (state = runner->getNext(&index, NULL))) {
const BSONObj key = index.getObjectField("key");
const string plugin = IndexNames::findPluginName(key);
if (h->versionMinor == PDFILE_VERSION_MINOR_22_AND_OLDER) {
if (IndexNames::existedBefore24(plugin))
continue;
log() << "Index " << index << " claims to be of type '" << plugin << "', "
<< "which is either invalid or did not exist before v2.4. "
<< "See the upgrade section: "
<< "http://dochub.mongodb.org/core/upgrade-2.4"
<< startupWarningsLog;
}
const Status keyStatus = validateKeyPattern(key);
if (!keyStatus.isOK()) {
log() << "Problem with index " << index << ": " << keyStatus.reason()
<< " This index can still be used however it cannot be rebuilt."
<< " For more info see"
<< " http://dochub.mongodb.org/core/index-validation"
<< startupWarningsLog;
}
}
if (Runner::RUNNER_EOF != state) {
warning() << "Internal error while reading collection " << systemIndexes;
}
Database::closeDatabase(dbName.c_str(), storageGlobalParams.dbpath);
}
}
LOG(1) << "done repairDatabases" << endl;
if (mongodGlobalParams.upgrade) {
log() << "finished checking dbs" << endl;
cc().shutdown();
dbexit( EXIT_CLEAN );
}
}
bool run(const string& dbname , BSONObj& jsobj, int, string& errmsg, BSONObjBuilder& result, bool /*fromRepl*/) {
static DBDirectClient db;
BSONElement e = jsobj.firstElement();
string toDeleteNs = dbname + '.' + e.valuestr();
MONGO_TLOG(0) << "CMD: reIndex " << toDeleteNs << endl;
Lock::DBWrite dbXLock(dbname);
Client::Context ctx(toDeleteNs);
Collection* collection = cc().database()->getCollection( toDeleteNs );
if ( !collection ) {
errmsg = "ns not found";
return false;
}
BackgroundOperation::assertNoBgOpInProgForNs( toDeleteNs );
std::vector<BSONObj> indexesInProg = stopIndexBuilds(cc().database(), jsobj);
list<BSONObj> all;
auto_ptr<DBClientCursor> i = db.query( dbname + ".system.indexes" , BSON( "ns" << toDeleteNs ) , 0 , 0 , 0 , QueryOption_SlaveOk );
BSONObjBuilder b;
while ( i->more() ) {
const BSONObj spec = i->next().removeField("v").getOwned();
const BSONObj key = spec.getObjectField("key");
const Status keyStatus = validateKeyPattern(key);
if (!keyStatus.isOK()) {
errmsg = str::stream()
<< "Cannot rebuild index " << spec << ": " << keyStatus.reason()
<< " For more info see http://dochub.mongodb.org/core/index-validation";
return false;
}
b.append( BSONObjBuilder::numStr( all.size() ) , spec );
all.push_back( spec );
}
result.appendNumber( "nIndexesWas", collection->getIndexCatalog()->numIndexesTotal() );
Status s = collection->getIndexCatalog()->dropAllIndexes( true );
if ( !s.isOK() ) {
errmsg = "dropIndexes failed";
return appendCommandStatus( result, s );
}
for ( list<BSONObj>::iterator i=all.begin(); i!=all.end(); i++ ) {
BSONObj o = *i;
LOG(1) << "reIndex ns: " << toDeleteNs << " index: " << o << endl;
Status s = collection->getIndexCatalog()->createIndex( o, false );
if ( !s.isOK() )
return appendCommandStatus( result, s );
}
result.append( "nIndexes" , (int)all.size() );
result.appendArray( "indexes" , b.obj() );
IndexBuilder::restoreIndexes(indexesInProg);
return true;
}
bool run(OperationContext* txn, const string& dbname , BSONObj& jsobj, int, string& errmsg, BSONObjBuilder& result, bool /*fromRepl*/) {
DBDirectClient db(txn);
BSONElement e = jsobj.firstElement();
string toDeleteNs = dbname + '.' + e.valuestr();
LOG(0) << "CMD: reIndex " << toDeleteNs << endl;
Lock::DBLock dbXLock(txn->lockState(), dbname, MODE_X);
Client::Context ctx(txn, toDeleteNs);
Collection* collection = ctx.db()->getCollection( txn, toDeleteNs );
if ( !collection ) {
errmsg = "ns not found";
return false;
}
BackgroundOperation::assertNoBgOpInProgForNs( toDeleteNs );
std::vector<BSONObj> indexesInProg = stopIndexBuilds(txn, ctx.db(), jsobj);
vector<BSONObj> all;
{
vector<string> indexNames;
collection->getCatalogEntry()->getAllIndexes( txn, &indexNames );
for ( size_t i = 0; i < indexNames.size(); i++ ) {
const string& name = indexNames[i];
BSONObj spec = collection->getCatalogEntry()->getIndexSpec( txn, name );
all.push_back(spec.removeField("v").getOwned());
const BSONObj key = spec.getObjectField("key");
const Status keyStatus = validateKeyPattern(key);
if (!keyStatus.isOK()) {
errmsg = str::stream()
<< "Cannot rebuild index " << spec << ": " << keyStatus.reason()
<< " For more info see http://dochub.mongodb.org/core/index-validation";
return false;
}
}
}
result.appendNumber( "nIndexesWas", all.size() );
{
WriteUnitOfWork wunit(txn);
Status s = collection->getIndexCatalog()->dropAllIndexes(txn, true);
if ( !s.isOK() ) {
errmsg = "dropIndexes failed";
return appendCommandStatus( result, s );
}
wunit.commit();
}
MultiIndexBlock indexer(txn, collection);
// do not want interruption as that will leave us without indexes.
Status status = indexer.init(all);
if (!status.isOK())
return appendCommandStatus( result, status );
status = indexer.insertAllDocumentsInCollection();
if (!status.isOK())
return appendCommandStatus( result, status );
{
WriteUnitOfWork wunit(txn);
indexer.commit();
wunit.commit();
}
result.append( "nIndexes", (int)all.size() );
result.append( "indexes", all );
IndexBuilder::restoreIndexes(indexesInProg);
return true;
}
// ran at startup.
static void repairDatabasesAndCheckVersion(bool shouldClearNonLocalTmpCollections) {
LOG(1) << "enter repairDatabases (to check pdfile version #)" << endl;
OperationContextImpl txn;
Lock::GlobalWrite lk(txn.lockState());
WriteUnitOfWork wunit(txn.recoveryUnit());
vector< string > dbNames;
globalStorageEngine->listDatabases( &dbNames );
for ( vector< string >::iterator i = dbNames.begin(); i != dbNames.end(); ++i ) {
string dbName = *i;
LOG(1) << "\t" << dbName << endl;
Client::Context ctx(&txn, dbName );
if (repl::replSettings.usingReplSets()) {
// we only care about the _id index if we are in a replset
checkForIdIndexes(&txn, ctx.db());
}
if (shouldClearNonLocalTmpCollections || dbName == "local")
ctx.db()->clearTmpCollections(&txn);
if ( mongodGlobalParams.repair ) {
fassert(18506, globalStorageEngine->repairDatabase(&txn, dbName));
}
else if (!ctx.db()->getDatabaseCatalogEntry()->currentFilesCompatible(&txn)) {
log() << "****";
log() << "cannot do this upgrade without an upgrade in the middle";
log() << "please do a --repair with 2.6 and then start this version";
dbexit( EXIT_NEED_UPGRADE );
invariant( false );
return;
}
else {
// major versions match, check indexes
const string systemIndexes = ctx.db()->name() + ".system.indexes";
Collection* coll = ctx.db()->getCollection( &txn, systemIndexes );
auto_ptr<Runner> runner(InternalPlanner::collectionScan(&txn, systemIndexes,coll));
BSONObj index;
Runner::RunnerState state;
while (Runner::RUNNER_ADVANCED == (state = runner->getNext(&index, NULL))) {
const BSONObj key = index.getObjectField("key");
const string plugin = IndexNames::findPluginName(key);
if (ctx.db()->getDatabaseCatalogEntry()->isOlderThan24(&txn)) {
if (IndexNames::existedBefore24(plugin))
continue;
log() << "Index " << index << " claims to be of type '" << plugin << "', "
<< "which is either invalid or did not exist before v2.4. "
<< "See the upgrade section: "
<< "http://dochub.mongodb.org/core/upgrade-2.4"
<< startupWarningsLog;
}
const Status keyStatus = validateKeyPattern(key);
if (!keyStatus.isOK()) {
log() << "Problem with index " << index << ": " << keyStatus.reason()
<< " This index can still be used however it cannot be rebuilt."
<< " For more info see"
<< " http://dochub.mongodb.org/core/index-validation"
<< startupWarningsLog;
}
}
if (Runner::RUNNER_EOF != state) {
warning() << "Internal error while reading collection " << systemIndexes;
}
Database::closeDatabase(&txn, dbName.c_str());
}
}
wunit.commit();
LOG(1) << "done repairDatabases" << endl;
}