bool _compact(const char *ns, NamespaceDetails *d, string& errmsg, bool validate,
BSONObjBuilder& result, double pf, int pb, bool useDefaultPadding,
bool preservePadding) {
// 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;
ProgressMeterHolder pm(cc().curop()->setMessage("compact extent",
"Extent Compacting Progress",
extents.size()));
// same data, but might perform a little different after compact?
Collection* collection = cc().database()->getCollection( ns );
verify( collection );
collection->infoCache()->addedIndex();
verify( d->getCompletedIndexCount() == d->getTotalIndexCount() );
int nidx = d->getCompletedIndexCount();
scoped_array<BSONObj> indexSpecs( new BSONObj[nidx] );
{
NamespaceDetails::IndexIterator ii = d->ii();
// For each existing index...
for( int idxNo = 0; ii.more(); ++idxNo ) {
// Build a new index spec based on the old index spec.
BSONObjBuilder b;
BSONObj::iterator i(ii.next().info.obj());
while( i.more() ) {
BSONElement e = i.next();
if ( str::equals( e.fieldName(), "v" ) ) {
// Drop any preexisting index version spec. The default index version will
// be used instead for the new index.
continue;
}
if ( str::equals( e.fieldName(), "background" ) ) {
// Create the new index in the foreground.
continue;
}
// Pass the element through to the new index spec.
b.append(e);
}
indexSpecs[idxNo] = b.obj().getOwned();
}
}
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!
uassert(14025, "compact error no space available to allocate", !allocateSpaceForANewRecord(ns, d, Record::HeaderSize+1, false).isNull());
// 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 = collection->getIndexCatalog()->dropAllIndexes( true );
if ( !status.isOK() ) {
errmsg = str::stream() << "compact drop indexes failed: " << status.toString();
log() << status.toString() << endl;
return false;
}
getDur().commitIfNeeded();
long long skipped = 0;
int n = 0;
// 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 );
for( list<DiskLoc>::iterator i = extents.begin(); i != extents.end(); i++ ) {
skipped += compactExtent(ns, d, *i, n++, nidx, validate, pf, pb,
useDefaultPadding, preservePadding);
pm.hit();
}
if( skipped ) {
result.append("invalidObjects", skipped);
}
verify( d->firstExtent().ext()->xprev.isNull() );
// indexes will do their own progress meter?
pm.finished();
// build indexes
for( int i = 0; i < nidx; i++ ) {
killCurrentOp.checkForInterrupt(false);
BSONObj info = indexSpecs[i];
log() << "compact create index " << info["key"].Obj().toString() << endl;
Status status = collection->getIndexCatalog()->createIndex( info, false );
if ( !status.isOK() ) {
log() << "failed to create index: " << status.toString();
uassertStatusOK( status );
}
}
return true;
}
bool _compact(const char *ns, NamespaceDetails *d, string& errmsg, bool validate, BSONObjBuilder& result, double pf, int pb) {
//int les = d->lastExtentSize;
// this is a big job, so might as well make things tidy before we start just to be nice.
getDur().commitNow();
list<DiskLoc> extents;
for( DiskLoc L = d->firstExtent; !L.isNull(); L = L.ext()->xnext )
extents.push_back(L);
log() << "compact " << extents.size() << " extents" << endl;
ProgressMeterHolder pm( cc().curop()->setMessage( "compact extent" , extents.size() ) );
// same data, but might perform a little different after compact?
NamespaceDetailsTransient::get(ns).clearQueryCache();
int nidx = d->nIndexes;
scoped_array<IndexSpec> indexSpecs( new IndexSpec[nidx] );
scoped_array<SortPhaseOne> phase1( new SortPhaseOne[nidx] );
{
NamespaceDetails::IndexIterator ii = d->ii();
int x = 0;
while( ii.more() ) {
BSONObjBuilder b;
IndexDetails& idx = ii.next();
BSONObj::iterator i(idx.info.obj());
while( i.more() ) {
BSONElement e = i.next();
if( !str::equals(e.fieldName(), "v") && !str::equals(e.fieldName(), "background") ) {
b.append(e);
}
}
BSONObj o = b.obj().getOwned();
phase1[x].sorter.reset( new BSONObjExternalSorter( idx.idxInterface(), o.getObjectField("key") ) );
phase1[x].sorter->hintNumObjects( d->stats.nrecords );
indexSpecs[x++].reset(o);
}
}
log() << "compact orphan deleted lists" << endl;
for( int i = 0; i < Buckets; i++ ) {
d->deletedList[i].writing().Null();
}
// before dropping indexes, at least make sure we can allocate one extent!
uassert(14025, "compact error no space available to allocate", !allocateSpaceForANewRecord(ns, d, Record::HeaderSize+1, false).isNull());
// note that the drop indexes call also invalidates all clientcursors for the namespace, which is important and wanted here
log() << "compact dropping indexes" << endl;
BSONObjBuilder b;
if( !dropIndexes(d, ns, "*", errmsg, b, true) ) {
errmsg = "compact drop indexes failed";
log() << errmsg << endl;
return false;
}
getDur().commitNow();
long long skipped = 0;
int n = 0;
for( list<DiskLoc>::iterator i = extents.begin(); i != extents.end(); i++ ) {
skipped += compactExtent(ns, d, *i, n++, indexSpecs, phase1, nidx, validate, pf, pb);
pm.hit();
}
if( skipped ) {
result.append("invalidObjects", skipped);
}
assert( d->firstExtent.ext()->xprev.isNull() );
// indexes will do their own progress meter?
pm.finished();
// build indexes
NamespaceString s(ns);
string si = s.db + ".system.indexes";
for( int i = 0; i < nidx; i++ ) {
killCurrentOp.checkForInterrupt(false);
BSONObj info = indexSpecs[i].info;
log() << "compact create index " << info["key"].Obj().toString() << endl;
try {
precalced = &phase1[i];
theDataFileMgr.insert(si.c_str(), info.objdata(), info.objsize());
}
catch(...) {
precalced = 0;
throw;
}
precalced = 0;
}
return true;
}
bool _compact(const char *ns, NamespaceDetails *d, string& errmsg, bool validate, BSONObjBuilder& result, double pf, int pb) {
// 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;
ProgressMeterHolder pm( cc().curop()->setMessage( "compact extent" , extents.size() ) );
// same data, but might perform a little different after compact?
NamespaceDetailsTransient::get(ns).clearQueryCache();
int nidx = d->nIndexes;
scoped_array<IndexSpec> indexSpecs( new IndexSpec[nidx] );
scoped_array<SortPhaseOne> phase1( new SortPhaseOne[nidx] );
{
NamespaceDetails::IndexIterator ii = d->ii();
// For each existing index...
for( int idxNo = 0; ii.more(); ++idxNo ) {
// Build a new index spec based on the old index spec.
BSONObjBuilder b;
BSONObj::iterator i(ii.next().info.obj());
while( i.more() ) {
BSONElement e = i.next();
if ( str::equals( e.fieldName(), "v" ) ) {
// Drop any preexisting index version spec. The default index version will
// be used instead for the new index.
continue;
}
if ( str::equals( e.fieldName(), "background" ) ) {
// Create the new index in the foreground.
continue;
}
// Pass the element through to the new index spec.
b.append(e);
}
// Add the new index spec to 'indexSpecs'.
BSONObj o = b.obj().getOwned();
indexSpecs[idxNo].reset(o);
// Create an external sorter.
phase1[idxNo].sorter.reset
( new BSONObjExternalSorter
// Use the default index interface, since the new index will be created
// with the default index version.
( IndexInterface::defaultVersion(),
o.getObjectField("key") ) );
phase1[idxNo].sorter->hintNumObjects( d->stats.nrecords );
}
}
log() << "compact orphan deleted lists" << endl;
for( int i = 0; i < Buckets; i++ ) {
d->deletedList[i].writing().Null();
}
// Start over from scratch with our extent sizing and growth
d->lastExtentSize=0;
// before dropping indexes, at least make sure we can allocate one extent!
uassert(14025, "compact error no space available to allocate", !allocateSpaceForANewRecord(ns, d, Record::HeaderSize+1, false).isNull());
// note that the drop indexes call also invalidates all clientcursors for the namespace, which is important and wanted here
log() << "compact dropping indexes" << endl;
BSONObjBuilder b;
if( !dropIndexes(d, ns, "*", errmsg, b, true) ) {
errmsg = "compact drop indexes failed";
log() << errmsg << endl;
return false;
}
getDur().commitIfNeeded();
long long skipped = 0;
int n = 0;
// reset data size and record counts to 0 for this namespace
// as we're about to tally them up again for each new extent
{
NamespaceDetails::Stats *s = getDur().writing(&d->stats);
s->datasize = 0;
s->nrecords = 0;
}
for( list<DiskLoc>::iterator i = extents.begin(); i != extents.end(); i++ ) {
skipped += compactExtent(ns, d, *i, n++, indexSpecs, phase1, nidx, validate, pf, pb);
pm.hit();
}
if( skipped ) {
result.append("invalidObjects", skipped);
}
verify( d->firstExtent.ext()->xprev.isNull() );
// indexes will do their own progress meter?
pm.finished();
// build indexes
NamespaceString s(ns);
string si = s.db + ".system.indexes";
for( int i = 0; i < nidx; i++ ) {
killCurrentOp.checkForInterrupt(false);
BSONObj info = indexSpecs[i].info;
log() << "compact create index " << info["key"].Obj().toString() << endl;
try {
precalced = &phase1[i];
theDataFileMgr.insert(si.c_str(), info.objdata(), info.objsize());
}
catch(...) {
precalced = 0;
throw;
}
precalced = 0;
}
return true;
}