示例#1
0
    MongoDataFile* Database::suitableFile( const char *ns, int sizeNeeded, bool preallocate, bool enforceQuota ) {

        // check existing files
        for ( int i=numFiles()-1; i>=0; i-- ) {
            MongoDataFile* f = getFile( i );
            if ( f->getHeader()->unusedLength >= sizeNeeded ) {
                // we don't enforce the quota on "special" namespaces as that could lead to problems -- e.g.
                // rejecting an index insert after inserting the main record.
                if( cmdLine.quota && enforceQuota && i > cmdLine.quotaFiles && !NamespaceString::special(ns) )
                    ;
                else
                    return f;
            }
        }

        if( cmdLine.quota && enforceQuota && numFiles() >= cmdLine.quotaFiles && !NamespaceString::special(ns) )
            uasserted(12501, "quota exceeded");

        // allocate files until we either get one big enough or hit maxSize
        for ( int i = 0; i < 8; i++ ) {
            MongoDataFile* f = addAFile( sizeNeeded, preallocate );

            if ( f->getHeader()->unusedLength >= sizeNeeded )
                return f;

            if ( f->getHeader()->fileLength >= MongoDataFile::maxSize() ) // this is as big as they get so might as well stop
                return f;
        }

        uasserted(14810, "couldn't allocate space (suitableFile)"); // callers don't check for null return code
        return 0;
    }
示例#2
0
文件: database.cpp 项目: tanakh/mongo
    MongoDataFile* Database::suitableFile( const char *ns, int sizeNeeded, bool preallocate, bool enforceQuota ) {

        // check existing files
        for ( int i=numFiles()-1; i>=0; i-- ) {
            MongoDataFile* f = getFile( i );
            if ( f->getHeader()->unusedLength >= sizeNeeded ) {
                if ( fileIndexExceedsQuota( ns, i-1, enforceQuota ) ) // NOTE i-1 is the value used historically for this check.
                    ;
                else
                    return f;
            }
        }

        if ( fileIndexExceedsQuota( ns, numFiles(), enforceQuota ) )
            uasserted(12501, "quota exceeded");

        // allocate files until we either get one big enough or hit maxSize
        for ( int i = 0; i < 8; i++ ) {
            MongoDataFile* f = addAFile( sizeNeeded, preallocate );

            if ( f->getHeader()->unusedLength >= sizeNeeded )
                return f;

            if ( f->getHeader()->fileLength >= MongoDataFile::maxSize() ) // this is as big as they get so might as well stop
                return f;
        }

        uasserted(14810, "couldn't allocate space (suitableFile)"); // callers don't check for null return code
        return 0;
    }
示例#3
0
文件: db.cpp 项目: opinionaided/mongo
    // ran at startup.
    static void repairDatabasesAndCheckVersion() {
        //        LastError * le = lastError.get( true );
        Client::GodScope gs;
        log(1) << "enter repairDatabases (to check pdfile version #)" << endl;

        //verify(checkNsFilesOnLoad);
        checkNsFilesOnLoad = false; // we are mainly just checking the header - don't scan the whole .ns file for every db here.

        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 );
            MongoDataFile *p = cc().database()->getFile( 0 );
            DataFileHeader *h = p->getHeader();
            if ( !h->isCurrentVersion() || forceRepair ) {

                if( h->version <= 0 ) {
                    uasserted(14026, 
                      str::stream() << "db " << dbName << " appears corrupt pdfile version: " << h->version 
							        << " info: " << h->versionMinor << ' ' << h->fileLength);
                }

                log() << "****" << endl;
                log() << "****" << endl;
                log() << "need to upgrade database " << dbName << " with pdfile version " << h->version << "." << h->versionMinor << ", "
                      << "new version: " << PDFILE_VERSION << "." << PDFILE_VERSION_MINOR << endl;
                if ( shouldRepairDatabases ) {
                    // QUESTION: Repair even if file format is higher version than code?
                    log() << "\t starting upgrade" << endl;
                    string errmsg;
                    verify( doDBUpgrade( dbName , errmsg , 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 );
                    shouldRepairDatabases = 1;
                    return;
                }
            }
            else {
                Database::closeDatabase( dbName.c_str(), dbpath );
            }
        }

        log(1) << "done repairDatabases" << endl;

        if ( shouldRepairDatabases ) {
            log() << "finished checking dbs" << endl;
            cc().shutdown();
            dbexit( EXIT_CLEAN );
        }

        checkNsFilesOnLoad = true;
    }
示例#4
0
    MongoDataFile* Database::suitableFile( int sizeNeeded, bool preallocate ) {

        // check existing files
        for ( int i=numFiles()-1; i>=0; i-- ) {
            MongoDataFile* f = getFile( i );
            if ( f->getHeader()->unusedLength >= sizeNeeded )
                return f;
        }

        // allocate files until we either get one big enough or hit maxSize
        for ( int i = 0; i < 8; i++ ) {
            MongoDataFile* f = addAFile( sizeNeeded, preallocate );

            if ( f->getHeader()->unusedLength >= sizeNeeded )
                return f;

            if ( f->getHeader()->fileLength >= MongoDataFile::maxSize() ) // this is as big as they get so might as well stop
                return f;
        }

        return 0;
    }
示例#5
0
文件: db.cpp 项目: zhuk/mongo
    void repairDatabases() {

        dblock lk;
        vector< string > dbNames;
        getDatabaseNames( dbNames );
        for ( vector< string >::iterator i = dbNames.begin(); i != dbNames.end(); ++i ) {
            string dbName = *i;
            assert( !setClientTempNs( dbName.c_str() ) );
            MongoDataFile *p = database->getFile( 0 );
            MDFHeader *h = p->getHeader();
            if ( !h->currentVersion() ) {
                log() << "****" << endl;
                log() << "****" << endl;
                log() << "need to upgrade database " << dbName << " with pdfile version " << h->version << "." << h->versionMinor << ", "
                      << "new version: " << VERSION << "." << VERSION_MINOR << endl;
                if ( shouldRepairDatabases ){
                    // QUESTION: Repair even if file format is higher version than code?
                    log() << "\t starting repair" << endl;
                    string errmsg;
                    assert( repairDatabase( dbName.c_str(), errmsg ) );
                }
                else {
                    log() << "\t Not repairing, exiting!" << endl;
                    log() << "\t run --upgrade to upgrade dbs, then start again" << endl;
                    log() << "****" << endl;
                    dbexit( EXIT_NEED_UPGRADE );
                    shouldRepairDatabases = 1;
                    return;
                }
            } else {
                closeClient( dbName.c_str() );
            }
        }

        if ( shouldRepairDatabases ){
            log() << "finished checking dbs" << endl;
            dbexit( EXIT_CLEAN );
        }
    }