73 lines
2.8 KiB
Python
73 lines
2.8 KiB
Python
"""模块：子服务器 AppConfig
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Django 启动时自动完成 MSYNC Socket.IO 桥接——连接、注册、认证、心跳。"""
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import logging
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import threading
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from django.apps import AppConfig
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from django.conf import settings
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logger = logging.getLogger(__name__)
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# 与主服务器约定的 SDK 最低版本——版本不一致时启动警告
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REQUIRED_GVSDSDK_VERSION = '1.1.0'
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class SubServerConfig(AppConfig):
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default_auto_field = 'django.db.models.BigAutoField'
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name = 'apps.sub_server'
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verbose_name = 'SMANAGE 子服务器'
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verbose_name_plural = 'SMANAGE 子服务器'
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def ready(self):
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# 1) 校验 gvsdsdk 版本与主服务器一致
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self._check_sdk_version()
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# 2) 注册实验本地事务处理器（供主服务器 Saga 编排回调）
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self._register_local_handlers()
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# 3) 启动 MSYNC 桥接
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self._connect_msync()
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def _register_local_handlers(self):
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try:
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from .local_handlers import RegisterExperimentHandlers
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RegisterExperimentHandlers()
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logger.info('实验本地事务处理器已注册: demo_a/demo_b/demo_fail/demo_flaky')
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except Exception as e:
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logger.error(f'实验本地事务处理器注册失败: {e}')
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def _check_sdk_version(self):
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try:
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import gvsdsdk
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info = gvsdsdk.get_version_info()
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logger.info(f'[SDK] 加载: v{info["Version"]} @ {info["Location"]}')
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ok, msg = gvsdsdk.check_min_version(REQUIRED_GVSDSDK_VERSION)
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if ok:
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logger.info(f'[SDK] {msg}')
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else:
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logger.warning(f'[SDK] 版本不符！{msg}。双端 gvsdsdk 版本必须一致！')
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except ImportError as e:
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logger.error(f'[SDK] gvsdsdk 未安装: {e}')
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except Exception as e:
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logger.error(f'[SDK] 版本检查失败: {e}')
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def _connect_msync(self):
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try:
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from msync_client.sio_client import MSyncSocketClient
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msync_client = MSyncSocketClient(
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master_url=settings.MSYNC_MASTER_URL,
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service_name=settings.MSYNC_SERVICE_NAME,
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service_domain=settings.MSYNC_SERVICE_DOMAIN,
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service_secret=settings.MSYNC_SERVICE_SECRET,
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scope=settings.MSYNC_SERVICE_SCOPE,
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heartbeat_interval=settings.MSYNC_HEARTBEAT_INTERVAL,
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metadata={'DBName': settings.DATABASES['default']['NAME']},
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)
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setattr(settings, 'MSYNC_CLIENT', msync_client)
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t = threading.Thread(target=msync_client.Connect, daemon=True)
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t.start()
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logger.info('MSYNC Socket.IO 桥接线程已启动')
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except Exception as e:
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logger.error(f'MSYNC 桥接启动失败: {e}')
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