feat: add homework

homework/task3.ipynb

@@ -0,0 +1,113 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "e3cf6fb7-e4e7-4cd7-baa7-03209328631c",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from pyspark.sql import SparkSession\n",
+    "import pyspark.sql.functions as F\n",
+    "\n",
+    "spark = SparkSession.builder.appName(\"some_name\").getOrCreate()\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f0f1fb08-2373-48b2-99d9-1424a4ceb0c0",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "+---------+\n",
+      "|log_level|\n",
+      "+---------+\n",
+      "|INFO     |\n",
+      "|DEBUG    |\n",
+      "|ERROR    |\n",
+      "|INFO     |\n",
+      "|ERROR    |\n",
+      "|DEBUG    |\n",
+      "|ERROR    |\n",
+      "+---------+\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "parts = F.split(F.col(\"value\"), \" \", 2)\n",
+    "df_logs = spark.read.text(\"logs.txt\").select(parts[0].alias(\"log_level\"))\n",
+    "df_logs.show(truncate=False)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 37,
+   "id": "6d784b52-9369-4051-8084-a7f705c001fa",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "3"
+      ]
+     },
+     "execution_count": 37,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "df_error_logs = df_logs.filter(F.col(\"log_level\") == \"ERROR\").count()\n",
+    "count_error"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 38,
+   "id": "592dc010-5700-4cc1-b0bf-8738c3b1567e",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "0.42857142857142855"
+      ]
+     },
+     "execution_count": 38,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "total = df_logs.count()\n",
+    "count_error / total"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "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",
+   "version": "3.12.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}