refactor: 数据源菜单合一+布局优化
- 4个数据源菜单(MySQL/PG/Redis/Mongo)合并为1个「数据源」 - InstancePage 改为统一入口，顶部Tab切换类型过滤 - 添加数据源改为弹框Modal（默认MySQL） - 去掉左下角用户区，退出登录移到右上角header - 侧边栏收窄220px，整体布局更紧凑 - 后端202 tests passing - 前端构建零错误
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"""Redis connector — async interface for Redis instance management.
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Provides connection, info retrieval, key CRUD, command execution, and
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performance monitoring via redis.asyncio.
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"""
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import json
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from typing import Any, Dict, List, Optional, Tuple
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import redis.asyncio as aioredis
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from app.core.crypto import decrypt_password
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class RedisConnector:
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"""Async Redis connector for instance operations."""
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@staticmethod
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async def get_connection(instance) -> aioredis.Redis:
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"""Create an async Redis connection from an Instance model."""
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pwd = decrypt_password(instance.password)
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return aioredis.Redis(
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host=instance.host,
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port=instance.port,
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password=pwd or None,
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decode_responses=True,
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)
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@staticmethod
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async def get_info(instance) -> dict:
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"""Get Redis INFO ALL parsed into a structured dict."""
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conn = await RedisConnector.get_connection(instance)
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try:
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raw: str = await conn.info("all")
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return raw
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finally:
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await conn.close()
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@staticmethod
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async def get_dbsize(instance, db: int = 0) -> int:
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"""Get number of keys in a database."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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return await conn.dbsize()
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finally:
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await conn.close()
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@staticmethod
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async def scan_keys(
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instance,
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db: int = 0,
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pattern: str = "*",
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type_filter: Optional[str] = None,
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cursor: int = 0,
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count: int = 50,
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) -> Tuple[int, List[Dict[str, Any]]]:
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"""SCAN keys with optional type filter. Returns (next_cursor, key_details)."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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next_cursor, keys = await conn.scan(
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cursor=cursor, match=pattern, count=count
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)
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result = []
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for key in keys:
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key_type = await conn.type(key)
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if type_filter and key_type != type_filter:
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continue
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ttl = await conn.ttl(key)
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result.append(
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{"key": key, "type": key_type, "ttl": ttl}
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)
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return next_cursor, result
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finally:
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await conn.close()
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@staticmethod
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async def get_key_value(
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instance, db: int, key: str, key_type: Optional[str] = None
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) -> Any:
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"""Get value for a key based on its type."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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if key_type is None:
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key_type = await conn.type(key)
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if key_type == "string":
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value = await conn.get(key)
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elif key_type == "hash":
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value = await conn.hgetall(key)
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elif key_type == "list":
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value = await conn.lrange(key, 0, -1)
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elif key_type == "set":
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value = list(await conn.smembers(key))
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elif key_type == "zset":
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raw = await conn.zrange(key, 0, -1, withscores=True)
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value = [{"member": m, "score": s} for m, s in raw]
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else:
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value = None
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ttl = await conn.ttl(key)
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return {"key": key, "type": key_type, "value": value, "ttl": ttl}
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finally:
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await conn.close()
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@staticmethod
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async def set_key_value(
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instance,
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db: int,
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key: str,
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value: Any,
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type_: str = "string",
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ttl: Optional[int] = None,
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) -> str:
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"""Set a key value. Type determines how value is stored."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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if type_ == "string":
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await conn.set(key, value)
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elif type_ == "hash":
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# value should be a dict
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if isinstance(value, str):
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value = json.loads(value)
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await conn.hset(key, mapping=value)
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elif type_ == "list":
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if isinstance(value, str):
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value = json.loads(value)
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await conn.delete(key)
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if value:
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await conn.rpush(key, *value)
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elif type_ == "set":
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if isinstance(value, str):
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value = json.loads(value)
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await conn.delete(key)
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if value:
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await conn.sadd(key, *value)
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elif type_ == "zset":
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if isinstance(value, str):
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value = json.loads(value)
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await conn.delete(key)
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if isinstance(value, list):
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for item in value:
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member = item.get("member", "")
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score = item.get("score", 0)
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await conn.zadd(key, {member: score})
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if ttl and ttl > 0:
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await conn.expire(key, ttl)
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return "OK"
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finally:
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await conn.close()
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@staticmethod
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async def del_key(instance, db: int, key: str) -> int:
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"""Delete a key. Returns number of keys deleted."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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return await conn.delete(key)
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finally:
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await conn.close()
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@staticmethod
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async def set_ttl(instance, db: int, key: str, seconds: int) -> bool:
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"""Set TTL on a key."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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return await conn.expire(key, seconds)
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finally:
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await conn.close()
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@staticmethod
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async def get_ttl(instance, db: int, key: str) -> int:
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"""Get TTL of a key."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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return await conn.ttl(key)
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finally:
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await conn.close()
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@staticmethod
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async def execute_command(instance, db: int, command: str) -> str:
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"""Execute a raw Redis command."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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parts = command.strip().split()
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if not parts:
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return ""
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cmd = parts[0].upper()
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args = parts[1:]
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result = await conn.execute_command(cmd, *args)
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if result is None:
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return "(nil)"
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if isinstance(result, bytes):
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return result.decode("utf-8", errors="replace")
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if isinstance(result, (list, set)):
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formatted = []
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for item in result:
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if isinstance(item, bytes):
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formatted.append(item.decode("utf-8", errors="replace"))
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else:
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formatted.append(str(item))
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return "\n".join(formatted)
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return str(result)
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finally:
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await conn.close()
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@staticmethod
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async def flush_db(instance, db: int = 0) -> str:
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"""FLUSHDB — dangerous! Admin only."""
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conn = await RedisConnector.get_connection(instance)
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try:
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await conn.select(db)
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await conn.flushdb()
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return "OK"
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finally:
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await conn.close()
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@staticmethod
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async def get_slowlog(instance, count: int = 10) -> List[dict]:
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"""Get slowlog entries."""
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conn = await RedisConnector.get_connection(instance)
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try:
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raw = await conn.slowlog_get(count)
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result = []
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for entry in raw:
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result.append(
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{
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"id": entry.get("id", entry.get(0)),
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"timestamp": entry.get("start_time", entry.get(1)),
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"duration_us": entry.get("duration", entry.get(2)),
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"command": " ".join(
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str(c) if not isinstance(c, bytes) else c.decode("utf-8", errors="replace")
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for c in entry.get("command", entry.get(3, []))
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),
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}
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)
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return result
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finally:
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await conn.close()
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@staticmethod
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async def get_clients(instance) -> List[dict]:
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"""Get client list."""
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conn = await RedisConnector.get_connection(instance)
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try:
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raw: str = await conn.client_list()
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clients = []
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for line in raw.split("\n"):
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line = line.strip()
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if not line:
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continue
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client = {}
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for pair in line.split(" "):
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if "=" in pair:
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k, v = pair.split("=", 1)
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client[k] = v
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if client:
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clients.append(client)
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return clients
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finally:
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await conn.close()
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