101 lines
2.9 KiB
Python
101 lines
2.9 KiB
Python
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#!/usr/bin/env python3
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"""Безопасная проверка структуры базы данных"""
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import psycopg2
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from urllib.parse import unquote
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# Параметры подключения
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DB_HOST = "147.45.189.234"
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DB_PORT = 5432
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DB_NAME = "default_db"
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DB_USER = "gen_user"
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DB_PASSWORD = unquote("2~~9_%5EkVsU%3F2%5CS")
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print("Подключаюсь к базе данных...")
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print(f"Host: {DB_HOST}")
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print(f"Database: {DB_NAME}")
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print(f"User: {DB_USER}")
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print()
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try:
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conn = psycopg2.connect(
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host=DB_HOST,
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port=DB_PORT,
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database=DB_NAME,
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user=DB_USER,
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password=DB_PASSWORD
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)
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cur = conn.cursor()
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# Проверяем версию PostgreSQL
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cur.execute("SELECT version();")
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version = cur.fetchone()[0]
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print(f"PostgreSQL версия: {version.split(',')[0]}")
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print()
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# Проверяем размер базы
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cur.execute("""
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SELECT pg_size_pretty(pg_database_size(current_database()));
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""")
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db_size = cur.fetchone()[0]
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print(f"Размер базы: {db_size}")
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print()
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# Проверяем существующие таблицы
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cur.execute("""
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SELECT schemaname, tablename,
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pg_size_pretty(pg_total_relation_size(schemaname||'.'||tablename)) as size
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FROM pg_tables
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WHERE schemaname NOT IN ('pg_catalog', 'information_schema')
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ORDER BY pg_total_relation_size(schemaname||'.'||tablename) DESC
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LIMIT 20;
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""")
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tables = cur.fetchall()
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print("=== Существующие таблицы (топ 20 по размеру) ===")
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if tables:
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for schema, table, size in tables:
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print(f" {schema}.{table} - {size}")
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else:
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print(" Пользовательских таблиц не найдено")
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print()
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# Проверяем есть ли таблицы с префиксом hotel
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cur.execute("""
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SELECT tablename
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FROM pg_tables
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WHERE schemaname = 'public' AND tablename LIKE 'hotel%';
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""")
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hotel_tables = cur.fetchall()
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if hotel_tables:
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print("=== Таблицы с префиксом 'hotel' ===")
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for (table,) in hotel_tables:
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print(f" {table}")
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print()
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# Проверяем лимиты подключений
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cur.execute("""
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SELECT setting FROM pg_settings WHERE name = 'max_connections';
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""")
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max_conn = cur.fetchone()[0]
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print(f"Максимум подключений: {max_conn}")
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cur.execute("""
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SELECT count(*) FROM pg_stat_activity;
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""")
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active_conn = cur.fetchone()[0]
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print(f"Активных подключений: {active_conn}")
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print()
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print("✓ Подключение успешно! База в порядке.")
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cur.close()
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conn.close()
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except Exception as e:
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print(f"✗ Ошибка подключения: {e}")
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exit(1)
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