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dongchangxi committed 2025-12-09 11:09:11 +08:00
1 parent 5134ece73b
commit dcf9eb6f23
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@@ -1,4 +1,10 @@
import oss2,redis
import time
import logging
# 配置日志
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
# 连接oss - 单例模式
class OSSClientSingleton:
@@ -29,47 +35,87 @@ class RedisClientSingleton:
_instance = None
_client = None
# Redis连接配置
REDIS_CONFIG = {
'host': 'mp.api.suwa3d.com',
'password': 'kcV2000',
'port': 6379,
'db': 6,
'socket_timeout': 30, # 操作超时30秒
'socket_connect_timeout': 10, # 连接超时10秒
'socket_keepalive': True, # 启用 TCP keepalive
'socket_keepalive_options': {}, # keepalive 选项
'health_check_interval': 30 # 健康检查间隔30秒
}
# 重试配置
RETRY_INTERVAL = 5 # 重试间隔(秒)
MAX_RETRY_INTERVAL = 60 # 最大重试间隔(秒),用于指数退避
def __new__(cls):
if cls._instance is None:
cls._instance = super(RedisClientSingleton, cls).__new__(cls)
return cls._instance
def _create_redis_client(self):
"""创建Redis客户端"""
return redis.Redis(**self.REDIS_CONFIG)
def _connect_with_retry(self, max_retries=None, retry_interval=None):
"""
带重试机制的Redis连接方法
:param max_retries: 最大重试次数,None表示无限重试
:param retry_interval: 重试间隔(秒),None表示使用默认值,支持指数退避
:return: Redis客户端实例
"""
if retry_interval is None:
retry_interval = self.RETRY_INTERVAL
retry_count = 0
current_interval = retry_interval
while True:
try:
logger.info(f"尝试连接Redis (第 {retry_count + 1} 次)...")
client = self._create_redis_client()
# 测试连接
client.ping()
logger.info("Redis连接成功!")
return client
except (redis.ConnectionError, redis.TimeoutError, AttributeError, Exception) as e:
retry_count += 1
error_msg = str(e)
logger.warning(f"Redis连接失败 (第 {retry_count} 次): {error_msg}")
# 如果设置了最大重试次数且已达到,则抛出异常
if max_retries is not None and retry_count >= max_retries:
logger.error(f"达到最大重试次数 {max_retries},停止重试")
raise
# 指数退避:每次重试间隔逐渐增加,但不超过最大值
logger.info(f"等待 {current_interval} 秒后重试...")
time.sleep(current_interval)
current_interval = min(current_interval * 1.5, self.MAX_RETRY_INTERVAL)
def get_client(self):
"""
获取Redis客户端,如果连接断开则自动重连(带重试机制)
:return: Redis客户端实例
"""
if self._client is None:
# 添加超时参数,防止连接超时
# socket_timeout: 每次操作的超时时间(秒)
# socket_connect_timeout: 连接超时时间(秒)
# socket_keepalive: 启用 TCP keepalive
# socket_keepalive_options: keepalive 选项
self._client = redis.Redis(
host='mp.api.suwa3d.com',
password='kcV2000',
port=6379,
db=6,
socket_timeout=30, # 操作超时30秒
socket_connect_timeout=10, # 连接超时10秒
socket_keepalive=True, # 启用 TCP keepalive
socket_keepalive_options={}, # keepalive 选项
health_check_interval=30 # 健康检查间隔30秒
)
# 首次连接,使用无限重试直到成功
logger.info("初始化Redis连接...")
self._client = self._connect_with_retry(max_retries=None)
else:
# 检查连接是否有效,如果断开则重新连接
# 检查连接是否有效,如果断开则重新连接(带重试)
try:
self._client.ping()
except (redis.ConnectionError, redis.TimeoutError, AttributeError):
# 连接断开,重新创建连接
except (redis.ConnectionError, redis.TimeoutError, AttributeError) as e:
# 连接断开,重新创建连接(使用无限重试直到成功)
logger.warning(f"Redis连接已断开: {str(e)},开始重新连接...")
self._client = None
self._client = redis.Redis(
host='mp.api.suwa3d.com',
password='kcV2000',
port=6379,
db=6,
socket_timeout=30,
socket_connect_timeout=10,
socket_keepalive=True,
socket_keepalive_options={},
health_check_interval=30
)
self._client = self._connect_with_retry(max_retries=None)
return self._client