python - how to append data to existing LMDB? -
i have around 1 million images put in dataset 10000 @ time appended set. i"m sure map_size wrong ref article used line create set env = lmdb.open(path+'mylmdb', map_size=int(1e12) use line every 10000 sample write data file x , y placeholders data put in lmdb. env = create(env, x[:counter,:,:,:],y,counter) def create(env, x,y,n): env.begin(write=true) txn: # txn transaction object in range(n): datum = caffe.proto.caffe_pb2.datum() datum.channels = x.shape[1] datum.height = x.shape[2] datum.width = x.shape[3] datum.data = x[i].tostring() # or .tostring() if numpy < 1.9 datum.label = int(y[i]) str_id = '{:08}'.format(i) # encode essential in python 3 txn.put(str_id.encode('ascii'), datum.serializetostring()) #pdb.set_trace() return env how can edit code such new data added lmdb , not replaced prese