Exemplo n.º 1
0
    // Returns false when request includes 'end'
    bool assembleResponse( Message &m, DbResponse &dbresponse, const sockaddr_in &client ) {
        // before we lock...
        if ( m.data->operation() == dbQuery ) {
            const char *ns = m.data->_data + 4;
            if( strstr(ns, "$cmd.sys.") ) { 
                if( strstr(ns, "$cmd.sys.inprog") ) {
                    inProgCmd(m, dbresponse);
                    return true;
                }
                if( strstr(ns, "$cmd.sys.killop") ) { 
                    killOp(m, dbresponse);
                    return true;
                }
            }
        }
        
        if ( handlePossibleShardedMessage( m , dbresponse ) ){
            /* important to do this before we lock
               so if a message has to be forwarded, doesn't block for that
            */
            return true;
        }

        dblock lk;
        
        stringstream ss;
        char buf[64];
        time_t now = time(0);
        CurOp& currentOp = *cc().curop();
        currentOp.reset(now, client);

        time_t_to_String(now, buf);
        buf[20] = 0; // don't want the year
        ss << buf;

        Timer t;
        Client& c = cc();
        c.clearns();

        int logThreshold = 100;
        int ms;
        bool log = logLevel >= 1;
        c.curop()->op = m.data->operation();

#if 0
        /* use this if you only want to process operations for a particular namespace.
         maybe add to cmd line parms or something fancier.
         */
        DbMessage ddd(m);
        if ( strncmp(ddd.getns(), "clusterstock", 12) != 0 ) {
            static int q;
            if ( ++q < 20 )
                out() << "TEMP skip " << ddd.getns() << endl;
            goto skip;
        }
#endif

        if ( m.data->operation() == dbQuery ) {
            // receivedQuery() does its own authorization processing.
            receivedQuery(dbresponse, m, ss, true);
        }
        else if ( m.data->operation() == dbGetMore ) {
            // receivedQuery() does its own authorization processing.
            OPREAD;
            DEV log = true;
            ss << "getmore ";
            receivedGetMore(dbresponse, m, ss);
        }
        else if ( m.data->operation() == dbMsg ) {
			/* deprecated / rarely used.  intended for connection diagnostics. */
            ss << "msg ";
            char *p = m.data->_data;
            int len = strlen(p);
            if ( len > 400 )
                out() << curTimeMillis() % 10000 <<
                     " long msg received, len:" << len <<
                     " ends with: " << p + len - 10 << endl;
            bool end = false; //strcmp("end", p) == 0;
            Message *resp = new Message();
            resp->setData(opReply, "i am fine");
            dbresponse.response = resp;
            dbresponse.responseTo = m.data->id;
            //dbMsgPort.reply(m, resp);
            if ( end )
                return false;
        }
        else {
            const char *ns = m.data->_data + 4;
            char cl[256];
            nsToClient(ns, cl);
            strncpy(currentOp.ns, ns, Namespace::MaxNsLen);
            AuthenticationInfo *ai = currentClient.get()->ai;
            if( !ai->isAuthorized(cl) ) { 
                uassert_nothrow("unauthorized");
            }
            else if ( m.data->operation() == dbInsert ) {
                OPWRITE;
                try {
                    ss << "insert ";
                    receivedInsert(m, ss);
                }
                catch ( AssertionException& e ) {
                    LOGSOME problem() << " Caught Assertion insert, continuing\n";
                    ss << " exception " + e.toString();
                }
            }
            else if ( m.data->operation() == dbUpdate ) {
                OPWRITE;
                try {
                    ss << "update ";
                    receivedUpdate(m, ss);
                }
                catch ( AssertionException& e ) {
                    LOGSOME problem() << " Caught Assertion update, continuing" << endl;
                    ss << " exception " + e.toString();
                }
            }
            else if ( m.data->operation() == dbDelete ) {
                OPWRITE;
                try {
                    ss << "remove ";
                    receivedDelete(m, ss);
                }
                catch ( AssertionException& e ) {
                    LOGSOME problem() << " Caught Assertion receivedDelete, continuing" << endl;
                    ss << " exception " + e.toString();
                }
            }
            else if ( m.data->operation() == dbKillCursors ) {
                OPREAD;
                try {
                    logThreshold = 10;
                    ss << "killcursors ";
                    receivedKillCursors(m);
                }
                catch ( AssertionException& e ) {
                    problem() << " Caught Assertion in kill cursors, continuing" << endl;
                    ss << " exception " + e.toString();
                }
            }
            else {
                out() << "    operation isn't supported: " << m.data->operation() << endl;
                currentOp.active = false;
                assert(false);
            }
        }
        ms = t.millis();
        log = log || (logLevel >= 2 && ++ctr % 512 == 0);
        DEV log = true;
        if ( log || ms > logThreshold ) {
            ss << ' ' << t.millis() << "ms";
            out() << ss.str().c_str() << endl;
        }
        Database *database = cc().database();
        if ( database && database->profile >= 1 ) {
            if ( database->profile >= 2 || ms >= 100 ) {
                // profile it
                profile(ss.str().c_str()+20/*skip ts*/, ms);
            }
        }

        currentOp.active = false;
        return true;
    }
Exemplo n.º 2
0
    // Returns false when request includes 'end'
    void assembleResponse( Message &m, DbResponse &dbresponse, const HostAndPort& remote ) {

        // before we lock...
        int op = m.operation();
        bool isCommand = false;
        const char *ns = m.singleData()->_data + 4;

        if ( op == dbQuery ) {
            if( strstr(ns, ".$cmd") ) {
                isCommand = true;
                opwrite(m);
                if( strstr(ns, ".$cmd.sys.") ) {
                    if( strstr(ns, "$cmd.sys.inprog") ) {
                        inProgCmd(m, dbresponse);
                        return;
                    }
                    if( strstr(ns, "$cmd.sys.killop") ) {
                        killOp(m, dbresponse);
                        return;
                    }
                    if( strstr(ns, "$cmd.sys.unlock") ) {
                        unlockFsync(ns, m, dbresponse);
                        return;
                    }
                }
            }
            else {
                opread(m);
            }
        }
        else if( op == dbGetMore ) {
            opread(m);
        }
        else {
            opwrite(m);
        }

        globalOpCounters.gotOp( op , isCommand );

        Client& c = cc();
        c.getAuthorizationManager()->startRequest();
        
        auto_ptr<CurOp> nestedOp;
        CurOp* currentOpP = c.curop();
        if ( currentOpP->active() ) {
            nestedOp.reset( new CurOp( &c , currentOpP ) );
            currentOpP = nestedOp.get();
        }
        else {
            c.newTopLevelRequest();
        }

        CurOp& currentOp = *currentOpP;
        currentOp.reset(remote,op);

        OpDebug& debug = currentOp.debug();
        debug.op = op;

        long long logThreshold = cmdLine.slowMS;
        bool shouldLog = logLevel >= 1;

        if ( op == dbQuery ) {
            if ( handlePossibleShardedMessage( m , &dbresponse ) )
                return;
            receivedQuery(c , dbresponse, m );
        }
        else if ( op == dbGetMore ) {
            if ( ! receivedGetMore(dbresponse, m, currentOp) )
                shouldLog = true;
        }
        else if ( op == dbMsg ) {
            // deprecated - replaced by commands
            char *p = m.singleData()->_data;
            int len = strlen(p);
            if ( len > 400 )
                out() << curTimeMillis64() % 10000 <<
                      " long msg received, len:" << len << endl;

            Message *resp = new Message();
            if ( strcmp( "end" , p ) == 0 )
                resp->setData( opReply , "dbMsg end no longer supported" );
            else
                resp->setData( opReply , "i am fine - dbMsg deprecated");

            dbresponse.response = resp;
            dbresponse.responseTo = m.header()->id;
        }
        else {
            try {
                const NamespaceString nsString( ns );

                // The following operations all require authorization.
                // dbInsert, dbUpdate and dbDelete can be easily pre-authorized,
                // here, but dbKillCursors cannot.
                if ( op == dbKillCursors ) {
                    currentOp.ensureStarted();
                    logThreshold = 10;
                    receivedKillCursors(m);
                }
                else if ( !nsString.isValid() ) {
                    // Only killCursors doesn't care about namespaces
                    uassert( 16257, str::stream() << "Invalid ns [" << ns << "]", false );
                }
                else if ( op == dbInsert ) {
                    receivedInsert(m, currentOp);
                }
                else if ( op == dbUpdate ) {
                    receivedUpdate(m, currentOp);
                }
                else if ( op == dbDelete ) {
                    receivedDelete(m, currentOp);
                }
                else {
                    mongo::log() << "    operation isn't supported: " << op << endl;
                    currentOp.done();
                    shouldLog = true;
                }
            }
            catch ( UserException& ue ) {
                tlog(3) << " Caught Assertion in " << opToString(op) << ", continuing "
                        << ue.toString() << endl;
                debug.exceptionInfo = ue.getInfo();
            }
            catch ( AssertionException& e ) {
                tlog(3) << " Caught Assertion in " << opToString(op) << ", continuing "
                        << e.toString() << endl;
                debug.exceptionInfo = e.getInfo();
                shouldLog = true;
            }
        }
        currentOp.ensureStarted();
        currentOp.done();
        debug.executionTime = currentOp.totalTimeMillis();

        logThreshold += currentOp.getExpectedLatencyMs();

        if ( shouldLog || debug.executionTime > logThreshold ) {
            mongo::tlog() << debug.report( currentOp ) << endl;
        }

        if ( currentOp.shouldDBProfile( debug.executionTime ) ) {
            // performance profiling is on
            if ( Lock::isReadLocked() ) {
                LOG(1) << "note: not profiling because recursive read lock" << endl;
            }
            else if ( lockedForWriting() ) {
                LOG(1) << "note: not profiling because doing fsync+lock" << endl;
            }
            else {
                profile(c, op, currentOp);
            }
        }

        debug.recordStats();
        debug.reset();
    } /* assembleResponse() */
Exemplo n.º 3
0
    // Returns false when request includes 'end'
    bool assembleResponse( Message &m, DbResponse &dbresponse, const SockAddr &client ) {

        // before we lock...
        int op = m.operation();
        bool isCommand = false;
        const char *ns = m.singleData()->_data + 4;
        if ( op == dbQuery ) {
            if( strstr(ns, ".$cmd") ) {
                isCommand = true;
                opwrite(m);
                if( strstr(ns, ".$cmd.sys.") ) { 
                    if( strstr(ns, "$cmd.sys.inprog") ) {
                        inProgCmd(m, dbresponse);
                        return true;
                    }
                    if( strstr(ns, "$cmd.sys.killop") ) { 
                        killOp(m, dbresponse);
                        return true;
                    }
                    if( strstr(ns, "$cmd.sys.unlock") ) { 
                        unlockFsync(ns, m, dbresponse);
                        return true;
                    }
                }
            }
            else {
                opread(m);
            }
        }
        else if( op == dbGetMore ) {
            opread(m);
        }
        else {
            opwrite(m);
        }
        
        globalOpCounters.gotOp( op , isCommand );
        
        Client& c = cc();
        
        auto_ptr<CurOp> nestedOp;
        CurOp* currentOpP = c.curop();
        if ( currentOpP->active() ){
            nestedOp.reset( new CurOp( &c , currentOpP ) );
            currentOpP = nestedOp.get();
        }
        CurOp& currentOp = *currentOpP;
        currentOp.reset(client,op);
        
        OpDebug& debug = currentOp.debug();
        StringBuilder& ss = debug.str;
        ss << opToString( op ) << " ";

        int logThreshold = cmdLine.slowMS;
        bool log = logLevel >= 1;
        
        if ( op == dbQuery ) {
            if ( handlePossibleShardedMessage( m , &dbresponse ) )
                return true;
            receivedQuery(c , dbresponse, m );
        }
        else if ( op == dbGetMore ) {
            if ( ! receivedGetMore(dbresponse, m, currentOp) )
                log = true;
        }
        else if ( op == dbMsg ) {
            // deprecated - replaced by commands
            char *p = m.singleData()->_data;
            int len = strlen(p);
            if ( len > 400 )
                out() << curTimeMillis() % 10000 <<
                    " long msg received, len:" << len << endl;

            Message *resp = new Message();
            if ( strcmp( "end" , p ) == 0 )
                resp->setData( opReply , "dbMsg end no longer supported" );
            else
                resp->setData( opReply , "i am fine - dbMsg deprecated");

            dbresponse.response = resp;
            dbresponse.responseTo = m.header()->id;
        }
        else {
            const char *ns = m.singleData()->_data + 4;
            char cl[256];
            nsToDatabase(ns, cl);
            if( ! c.getAuthenticationInfo()->isAuthorized(cl) ) { 
                uassert_nothrow("unauthorized");
            }
            else {
                try {
                    if ( op == dbInsert ) {
                        receivedInsert(m, currentOp);
                    }
                    else if ( op == dbUpdate ) {
                        receivedUpdate(m, currentOp);
                    }
                    else if ( op == dbDelete ) {
                        receivedDelete(m, currentOp);
                    }
                    else if ( op == dbKillCursors ) {
                        currentOp.ensureStarted();
                        logThreshold = 10;
                        ss << "killcursors ";
                        receivedKillCursors(m);
                    }
                    else {
                        mongo::log() << "    operation isn't supported: " << op << endl;
                        currentOp.done();
                        log = true;
                    }
                }
                catch ( UserException& ue ) {
                    tlog(3) << " Caught Assertion in " << opToString(op) << ", continuing " << ue.toString() << endl;
                    ss << " exception " << ue.toString();
                }
                catch ( AssertionException& e ) {
                    tlog(3) << " Caught Assertion in " << opToString(op) << ", continuing " << e.toString() << endl;
                    ss << " exception " << e.toString();
                    log = true;
                }
            }
        }
        currentOp.ensureStarted();
        currentOp.done();
        int ms = currentOp.totalTimeMillis();

        //DEV log = true; 
        if ( log || ms > logThreshold ) {
            if( logLevel < 3 && op == dbGetMore && strstr(ns, ".oplog.") && ms < 3000 && !log ) {
                /* it's normal for getMore on the oplog to be slow because of use of awaitdata flag. */
            } else {
                ss << ' ' << ms << "ms";
                mongo::tlog() << ss.str() << endl;
            }
        }
        
        if ( currentOp.shouldDBProfile( ms ) ){
            // performance profiling is on
            if ( dbMutex.getState() < 0 ){
                mongo::log(1) << "note: not profiling because recursive read lock" << endl;
            }
            else {
                writelock lk;
                if ( dbHolder.isLoaded( nsToDatabase( currentOp.getNS() ) , dbpath ) ){
                    Client::Context c( currentOp.getNS() );
                    profile(ss.str().c_str(), ms);
                }
                else {
                    mongo::log() << "note: not profiling because db went away - probably a close on: " << currentOp.getNS() << endl;
                }
            }
        }

        return true;
    } /* assembleResponse() */
Exemplo n.º 4
0
    // Returns false when request includes 'end'
    void assembleResponse( Message &m, DbResponse &dbresponse, const HostAndPort& remote ) {

        // before we lock...
        int op = m.operation();
        bool isCommand = false;
        const char *ns = m.singleData()->_data + 4;

        if ( op == dbQuery ) {
            if( strstr(ns, ".$cmd") ) {
                isCommand = true;
                opwrite(m);
                if( strstr(ns, ".$cmd.sys.") ) {
                    if( strstr(ns, "$cmd.sys.inprog") ) {
                        inProgCmd(m, dbresponse);
                        return;
                    }
                    if( strstr(ns, "$cmd.sys.killop") ) {
                        killOp(m, dbresponse);
                        return;
                    }
                    if( strstr(ns, "$cmd.sys.unlock") ) {
                        unlockFsync(ns, m, dbresponse);
                        return;
                    }
                }
            }
            else {
                opread(m);
            }
        }
        else if( op == dbGetMore ) {
            opread(m);
        }
        else {
            opwrite(m);
        }

        globalOpCounters.gotOp( op , isCommand );

        Client& c = cc();
        
        
        auto_ptr<CurOp> nestedOp;
        CurOp* currentOpP = c.curop();
        if ( currentOpP->active() ) {
            nestedOp.reset( new CurOp( &c , currentOpP ) );
            currentOpP = nestedOp.get();
        }
        else {
            c.newTopLevelRequest();
        }

        CurOp& currentOp = *currentOpP;
        currentOp.reset(remote,op);

        OpDebug& debug = currentOp.debug();
        debug.op = op;

        int logThreshold = cmdLine.slowMS;
        bool log = logLevel >= 1;

        if ( op == dbQuery ) {
            if ( handlePossibleShardedMessage( m , &dbresponse ) )
                return;
            receivedQuery(c , dbresponse, m );
        }
        else if ( op == dbGetMore ) {
            if ( ! receivedGetMore(dbresponse, m, currentOp) )
                log = true;
        }
        else if ( op == dbMsg ) {
            // deprecated - replaced by commands
            char *p = m.singleData()->_data;
            int len = strlen(p);
            if ( len > 400 )
                out() << curTimeMillis64() % 10000 <<
                      " long msg received, len:" << len << endl;

            Message *resp = new Message();
            if ( strcmp( "end" , p ) == 0 )
                resp->setData( opReply , "dbMsg end no longer supported" );
            else
                resp->setData( opReply , "i am fine - dbMsg deprecated");

            dbresponse.response = resp;
            dbresponse.responseTo = m.header()->id;
        }
        else {
            try {
                // The following operations all require authorization.
                // dbInsert, dbUpdate and dbDelete can be easily pre-authorized,
                // here, but dbKillCursors cannot.
                if ( op == dbKillCursors ) {
                    currentOp.ensureStarted();
                    logThreshold = 10;
                    receivedKillCursors(m);
                }
                else if ( ! c.getAuthenticationInfo()->isAuthorized(
                                  nsToDatabase( m.singleData()->_data + 4 ) ) ) {
                    uassert_nothrow("unauthorized");
                }
                else if ( op == dbInsert ) {
                    receivedInsert(m, currentOp);
                }
                else if ( op == dbUpdate ) {
                    receivedUpdate(m, currentOp);
                }
                else if ( op == dbDelete ) {
                    receivedDelete(m, currentOp);
                }
                else {
                    mongo::log() << "    operation isn't supported: " << op << endl;
                    currentOp.done();
                    log = true;
                }
            }
            catch ( UserException& ue ) {
                tlog(3) << " Caught Assertion in " << opToString(op) << ", continuing "
                        << ue.toString() << endl;
                debug.exceptionInfo = ue.getInfo();
            }
            catch ( AssertionException& e ) {
                tlog(3) << " Caught Assertion in " << opToString(op) << ", continuing "
                        << e.toString() << endl;
                debug.exceptionInfo = e.getInfo();
                log = true;
            }
        }
        currentOp.ensureStarted();
        currentOp.done();
        debug.executionTime = currentOp.totalTimeMillis();

        //DEV log = true;
        if ( log || debug.executionTime > logThreshold ) {
            if( logLevel < 3 && op == dbGetMore && strstr(ns, ".oplog.") && debug.executionTime < 4300 && !log ) {
                /* it's normal for getMore on the oplog to be slow because of use of awaitdata flag. */
            }
            else {
                mongo::tlog() << debug << endl;
            }
        }

        if ( currentOp.shouldDBProfile( debug.executionTime ) ) {
            // performance profiling is on
            if ( Lock::isReadLocked() ) {
                mongo::log(1) << "note: not profiling because recursive read lock" << endl;
            }
            else if ( lockedForWriting() ) {
                mongo::log(1) << "note: not profiling because doing fsync+lock" << endl;
            }
            else {
                writelock lk;
                if ( dbHolder()._isLoaded( nsToDatabase( currentOp.getNS() ) , dbpath ) ) {
                    Client::Context cx( currentOp.getNS(), dbpath, false );
                    profile(c , currentOp );
                }
                else {
                    mongo::log() << "note: not profiling because db went away - probably a close on: " << currentOp.getNS() << endl;
                }
            }
        }
        
        debug.reset();
    } /* assembleResponse() */