client-py/SessionSyn.py

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# Uncomment the following line to use apache-iotdb module installed by pip3
#

from iotdb.Session import Session
from iotdb.utils.IoTDBConstants import TSDataType, TSEncoding, Compressor
from iotdb.utils.Tablet import Tablet
import pandas as pd
import numpy as np

# creating session connection.
ip = "127.0.0.1"
port_ = "6667"
username_ = "root"
password_ = "root"
session = Session(ip, port_, username_, password_, fetch_size=1024, zone_id="UTC+8")
session.open(False)

grp = "tx_syn_04"
# syn_01: 1024
# syn_02: 512
# syn_03: 256
# syn_04: 128
# syn_05: false

# set and delete storage groups
session.delete_storage_group("root." + grp)
session.set_storage_group("root." + grp)

# setting time series.
session.create_time_series(
    "root." + grp + ".d_01.s_01", TSDataType.DOUBLE, TSEncoding.PLAIN, Compressor.SNAPPY
)

# checking time series
print(
    "s_01 expecting True, checking result: ",
    session.check_time_series_exists("root." + grp + ".d_01.s_01"),
)

# df = pd.read_csv("~/LSM-Quantile/wh.csv")
# data = df["value"].tolist()
# data = [[datum] for datum in data]
df = pd.read_csv("~/LSM-Quantile/taxi.txt")
data = (np.array(df)).tolist()
data = [[datum[0]] for datum in data]
data = data[:50000000]
batch = 81920
print(data[:10])
print(type(data[0]))

measurements_ = ["s_01"]
data_types_ = [
    TSDataType.DOUBLE
]

for i in range(int(len(data) / batch)):
    if i % 100 == 0:
        print("Iter: " + str(i))
# insert one tablet into the database.
    values_ = data[i * batch : (i + 1) * batch] # Non-ASCII text will cause error since bytes can only hold 0-128 nums.
    timestamps_ = list(range(i * batch, (i + 1) * batch))
    tablet_ = Tablet(
        "root." + grp + ".d_01", measurements_, data_types_, values_, timestamps_
    )
    session.insert_tablet(tablet_)
    # session.execute_non_query_statement("flush")

# close session connection.
session.close()

print("All executions done!!")