服务是通过nginx转发的，发现 /clouddrive.CloudDriveFileSrv/PushMessage 经常超时，nginx有大量错误日志：
2026/04/28 16:44:05 [error] 3229617#3229617: *23605 upstream timed out (110: Connection timed out) while reading upstream, client:xxx.xxx.xxx.xxx, server: *.xxx.com, request: "POST /clouddrive.CloudDriveFileSrv/PushMessage HTTP/1.1", upstream: "http://127.0.0.1:9999/clouddrive.CloudDriveFileSrv/PushMessage", host: "xxx.xxx.com:9998", referrer: "https://xxx.xxx.com:9998/"
服务是通过nginx转发的，发现 /clouddrive.CloudDriveFileSrv/PushMessage 经常超时，nginx有大量错误日志：
2026/04/28 16:44:05 [error] 3229617#3229617: *23605 upstream timed out (110: Connection timed out) while reading upstream, client:xxx.xxx.xxx.xxx, server: *.xxx.com, request: "POST /clouddrive.CloudDriveFileSrv/PushMessage HTTP/1.1", upstream: "http://127.0.0.1:9999/clouddrive.CloudDriveFileSrv/PushMessage", host: "xxx.xxx.com:9998", referrer: "https://xxx.xxx.com:9998/"