예제 #1
0
    def run(self):
        signal.signal(signal.SIGINT, self.stop)
        signal.signal(signal.SIGQUIT, self.stop)
        signal.signal(signal.SIGTERM, self.stop)

        self.exiting = False
        self.logger = log.get_logger('Server')

        # switch over to the correct user as soon as possible
        if self.options.set_user is not None:
            if not setuser(self.options.set_user):
                self.logger.error('failed to switch to user %s' %
                                  self.options.set_user)
                sys.exit(1)

        if self.options.daemonize:
            # ensure connection pool forks from daemon
            pool.close_connections()
            with storage.LoaderStorage.fork_wrapper():
                daemonize(self.options.log_path)
            pool.recreate_pool()

        # record the fact that we've started successfully
        self.servers = Servers()
        self.servers.ping()

        if self.options.num_workers > WORKER_WARN_THRESHOLD and not self.options.force_workers:
            if not cli_utils.confirm(
                    'Are you sure you want to start %d workers? This is potentially dangerous.'
                    % self.options.num_workers,
                    default=False):
                print 'Exiting.'
                sys.exit(1)

        self.logger.debug('Starting worker pool')
        self.pool = WorkerPool(num_workers=self.options.num_workers)

        print 'MemSQL Loader Server running'

        loader_db_name = storage.MEMSQL_LOADER_DB
        has_valid_loader_db_conn = False
        while not self.exiting:
            try:
                if bootstrap.check_bootstrapped():
                    has_valid_loader_db_conn = True
                    self.pool.poll()
                    self.servers.ping()
                    time.sleep(1)
                else:
                    if has_valid_loader_db_conn:
                        self.logger.warn(
                            'The %s database is unreachable or not ready; stopping worker pool',
                            loader_db_name)
                        self.pool.stop()
                    has_valid_loader_db_conn = False
                    time.sleep(5)
            except KeyboardInterrupt:
                break

        self.stop()
예제 #2
0
 def run(self):
     prompt = 'Are you sure you want to delete the MemSQL Loader database?\nThe database contains queued, running, and finished jobs.'
     if not cli_utils.confirm(prompt, default=False):
         print 'Exiting.'
         sys.exit(1)
     LoaderStorage.drop_database()
     print 'MemSQL Loader database deleted.'
예제 #3
0
    def run(self):
        signal.signal(signal.SIGINT, self.stop)
        signal.signal(signal.SIGQUIT, self.stop)
        signal.signal(signal.SIGTERM, self.stop)

        self.exiting = False
        self.logger = log.get_logger('Server')

        # switch over to the correct user as soon as possible
        if self.options.set_user is not None:
            if not setuser(self.options.set_user):
                self.logger.error('failed to switch to user %s' % self.options.set_user)
                sys.exit(1)

        if self.options.daemonize:
            # ensure connection pool forks from daemon
            pool.close_connections()
            with storage.LoaderStorage.fork_wrapper():
                daemonize(self.options.log_path)
            pool.recreate_pool()

        # record the fact that we've started successfully
        self.servers = Servers()
        self.servers.ping()

        if self.options.num_workers > WORKER_WARN_THRESHOLD and not self.options.force_workers:
            if not cli_utils.confirm('Are you sure you want to start %d workers? This is potentially dangerous.' % self.options.num_workers, default=False):
                print 'Exiting.'
                sys.exit(1)

        self.logger.debug('Starting worker pool')
        self.pool = WorkerPool(num_workers=self.options.num_workers)

        print 'MemSQL Loader Server running'

        loader_db_name = storage.MEMSQL_LOADER_DB
        has_valid_loader_db_conn = False
        while not self.exiting:
            try:
                if bootstrap.check_bootstrapped():
                    has_valid_loader_db_conn = True
                    self.pool.poll()
                    self.servers.ping()
                    time.sleep(1)
                else:
                    if has_valid_loader_db_conn:
                        self.logger.warn('The %s database is unreachable or not ready; stopping worker pool', loader_db_name)
                        self.pool.stop()
                    has_valid_loader_db_conn = False
                    time.sleep(5)
            except KeyboardInterrupt:
                break

        self.stop()
예제 #4
0
    def run(self):
        if not self.options.force:
            if servers.is_server_running():
                print 'Please stop any currently-running servers with stop-server before deleting the MemSQL Loader database.'
                sys.exit(1)

        prompt = 'Are you sure you want to delete the MemSQL Loader database?\nThe database contains queued, running, and finished jobs.'
        if not cli_utils.confirm(prompt, default=False):
            print 'Exiting.'
            sys.exit(1)
        LoaderStorage.drop_database()
        print 'MemSQL Loader database deleted.'