void profile(OperationContext* txn, const Client& c, int op, CurOp& currentOp) {
// initialize with 1kb to start, to avoid realloc later
// doing this outside the dblock to improve performance
BufBuilder profileBufBuilder(1024);
try {
// NOTE: It's kind of weird that we lock the op's namespace, but have to for now since
// we're sometimes inside the lock already
Lock::DBWrite lk(txn->lockState(), currentOp.getNS() );
if (dbHolder().get(txn, nsToDatabase(currentOp.getNS())) != NULL) {
// We are ok with the profiling happening in a different WUOW from the actual op.
WriteUnitOfWork wunit(txn->recoveryUnit());
Client::Context cx(txn, currentOp.getNS(), false);
_profile(txn, c, cx.db(), currentOp, profileBufBuilder);
wunit.commit();
}
else {
mongo::log() << "note: not profiling because db went away - probably a close on: "
<< currentOp.getNS() << endl;
}
}
catch (const AssertionException& assertionEx) {
warning() << "Caught Assertion while trying to profile " << opToString(op)
<< " against " << currentOp.getNS()
<< ": " << assertionEx.toString() << endl;
}
}
void profile(OperationContext* txn, const Client& c, int op, CurOp& currentOp) {
// initialize with 1kb to start, to avoid realloc later
// doing this outside the dblock to improve performance
BufBuilder profileBufBuilder(1024);
try {
// NOTE: It's kind of weird that we lock the op's namespace, but have to for now since
// we're sometimes inside the lock already
Lock::DBWrite lk( currentOp.getNS() );
if (dbHolder()._isLoaded(nsToDatabase(currentOp.getNS()), storageGlobalParams.dbpath)) {
Client::Context cx(currentOp.getNS(), storageGlobalParams.dbpath, false);
_profile(txn, c, cx.db(),
currentOp, profileBufBuilder);
}
else {
mongo::log() << "note: not profiling because db went away - probably a close on: "
<< currentOp.getNS() << endl;
}
}
catch (const AssertionException& assertionEx) {
warning() << "Caught Assertion while trying to profile " << opToString(op)
<< " against " << currentOp.getNS()
<< ": " << assertionEx.toString() << endl;
}
}
void profile(OperationContext* txn, const Client& c, int op, CurOp& currentOp) {
// initialize with 1kb to start, to avoid realloc later
// doing this outside the dblock to improve performance
BufBuilder profileBufBuilder(1024);
bool tryAgain = false;
while ( 1 ) {
try {
// NOTE: It's kind of weird that we lock the op's namespace, but have to for now
// since we're sometimes inside the lock already
const string dbname(nsToDatabase(currentOp.getNS()));
scoped_ptr<Lock::DBLock> lk;
// todo: this can be slow, perhaps can re-work
if ( !txn->lockState()->isDbLockedForMode( dbname, MODE_IX ) ) {
lk.reset( new Lock::DBLock( txn->lockState(),
dbname,
tryAgain ? MODE_X : MODE_IX) );
}
Database* db = dbHolder().get(txn, dbname);
if (db != NULL) {
// We want the profiling to happen in a different WUOW from the actual op.
Lock::CollectionLock clk(txn->lockState(), db->getProfilingNS(), MODE_X);
WriteUnitOfWork wunit(txn);
Client::Context cx(txn, currentOp.getNS(), false);
if ( !_profile(txn, c, cx.db(), currentOp, profileBufBuilder ) && lk.get() ) {
if ( tryAgain ) {
// we couldn't profile, but that's ok, we should have logged already
break;
}
// we took an IX lock, so now we try again with an X lock
tryAgain = true;
continue;
}
wunit.commit();
}
else {
mongo::log() << "note: not profiling because db went away - "
<< "probably a close on: " << currentOp.getNS();
}
return;
}
catch (const AssertionException& assertionEx) {
warning() << "Caught Assertion while trying to profile " << opToString(op)
<< " against " << currentOp.getNS()
<< ": " << assertionEx.toString() << endl;
return;
}
}
}
void profile(const Client& c, int op, CurOp& currentOp) {
// initialize with 1kb to start, to avoid realloc later
// doing this outside the dblock to improve performance
BufBuilder profileBufBuilder(1024);
try {
Lock::DBWrite lk( currentOp.getNS() );
if ( dbHolder()._isLoaded( nsToDatabase( currentOp.getNS() ) , dbpath ) ) {
Client::Context cx(currentOp.getNS(), dbpath);
_profile(c, currentOp, profileBufBuilder);
}
else {
mongo::log() << "note: not profiling because db went away - probably a close on: "
<< currentOp.getNS() << endl;
}
}
catch (const AssertionException& assertionEx) {
warning() << "Caught Assertion while trying to profile " << opToString(op)
<< " against " << currentOp.getNS()
<< ": " << assertionEx.toString() << endl;
}
}
