README.md

metadata

license: apache-2.0
task_categories:
  - time-series-forecasting
tags:
  - tsfile
  - format:tsfile
  - timeseries
modality: timeseries
configs:
  - config_name: default
    data_files:
      - split: train
        path: app_flow.tsfile

App Flow

This dataset consists of hourly maximum traffic flow for 128 systems deployed on 16 logic data centers, resulting in 1083 different time series in total. The length of each series is more than 4 months. Each time series is divided into two segments for training and testing with a ratio of 32:1. This dataset was collected at Ant Group and does not contain any Personal Identifiable Information and is desensitized and encrypted.

TsFile Conversion

• Original dataset: kashif/App_Flow

• Modalities: Time-series

• Converted data files are listed in the YAML metadata above.

• Source README text and dataset-specific metadata are retained; the source Usage section is replaced with the executable TsFile Python SDK example below.

• The encrypted source CSV is decoded as provided; app_name, zone, and generated event_rank are TAG columns, time becomes millisecond Time, and the CSV export index is retained as the source_row_id FIELD.

• The source contains 1,189 observed (app_name, zone) combinations (the source card states 1,083) and 4,766 concurrent duplicate time keys. event_rank distinguishes those concurrent rows without changing their original minute timestamps; 4,766 additional rows remain intentionally represented across distinct event-rank devices.

• All source rows and values are retained and sorted by app_name, zone, Time, and event_rank.

Schema (TsFile structure)

• Time (INT64, milliseconds) is the original CSV time value.
• app_name, zone, and event_rank are TAG dimensions.
• value and source_row_id are FIELD measurements; source_row_id is the original CSV export row number.

Usage

Install the Apache TsFile Python SDK (pip install tsfile) and read a converted file:

from pathlib import Path
from tsfile import TsFileReader

path = Path("app_flow.tsfile")
with TsFileReader(str(path)) as reader:
    schemas = reader.get_all_table_schemas()
    print("tables:", list(schemas))
    table_name = next(iter(schemas))
    table = schemas[table_name]
    columns = [column.get_column_name() for column in table.get_columns()]
    print("columns:", columns)
    field_names = [
        column.get_column_name()
        for column in table.get_columns()
        if column.get_column_name() not in {"Time", "time"}
    ]
    if field_names:
        with reader.query_table(table_name, field_names[:3], batch_size=1024) as result:
            batch = result.read_arrow_batch()
            if batch is not None:
                print(batch.to_pandas().head())