{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "pip install pyspark"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import os\n",
    "current_directory = os.getcwd()\n",
    "print(current_directory)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "os.chdir(current_directory)\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import pandas as pd\n",
    "from pyspark.sql import SparkSession\n",
    "from pyspark.sql.functions import col\n",
    "\n",
    "spark = SparkSession.builder.appName(\"CombineParquetFiles\").config(\"spark.executor.memory\", \"8g\").config(\"spark.executor.cores\", \"4\").config(\"spark.executor.instances\", \"3\").config(\"spark.dynamicAllocation.enabled\", \"true\").config(\"spark.task.maxFailures\", 10).getOrCreate()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "parquet_directory_path = '/Users/fionachow/Documents/NYU/CDS/Fall 2023/CSCI - GA 2271 - Computer Vision/Project/laion_sampled'\n",
    "\n",
    "output_parquet_file = '/Users/fionachow/Documents/NYU/CDS/Fall 2023/CSCI - GA 2271 - Computer Vision/Project/laion_combined'\n",
    "\n",
    "df = spark.read.parquet(parquet_directory_path)\n",
    "\n",
    "df_coalesced = df.coalesce(1)\n",
    "\n",
    "df_coalesced.write.mode('overwrite').parquet(output_parquet_file)\n",
    "\n",
    "row_count = df.count()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(row_count)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "parquet_directory_path = '/Users/fionachow/Documents/NYU/CDS/Fall 2023/CSCI - GA 2271 - Computer Vision/Project/laion_combined/part-00000-0190eea7-02ac-4ea0-86fd-0722308c0c58-c000.snappy.parquet'\n",
    "\n",
    "df = spark.read.parquet(parquet_directory_path)\n",
    "\n",
    "df.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "print(df.count())"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "bloom",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
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