Overflow v2.16.0-795845b-SNAPSHOT下频繁出现服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
Closed this issue · 4 comments
问题描述
在Overflow v2.16.0-795845b-SNAPSHOT下频繁出现服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
复现
更新了Overflow v2.16.0-795845b-SNAPSHOT
使用napcat docker的正向ws
overflow配置如下:
{
"ws_host": "ws://127.0.0.1:3001",
"reversed_ws_port": -1,
"token": "ryuzu",
"retry_times": 5,
"retry_wait_mills": 5000,
"retry_rest_mills": 60000
}
napcat的v1.8.6和v2.2.36均出现不定时
尝试回滚了之前overflow-core-all-2.16.0-d59fa60-SNAPSHOT,在napcat v1.8.6以及v2.2.36未发现此现象
Overflow 版本
Overflow v2.16.0-795845b-SNAPSHOT
其他组件版本
No response
系统日志
No response
网络日志
2024-09-02 10:33:24 I/Onebot: Overflow v2.16.0-795845b-SNAPSHOT 正在运行
2024-09-02 10:33:24 I/Onebot: 连接到 WebSocket: ws://127.0.0.1:3001
2024-09-02 10:33:24 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:33:24 D/Onebot: Send to server --> {"action":"get_version_info","echo":0}
2024-09-02 10:33:24 D/Onebot: Client received <-- {"time":1725244404,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:33:24 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":{"app_name":"NapCat.Onebot","protocol_version":"v11","app_version":"2.2.36"},"message":"","wording":"","echo":0}
2024-09-02 10:33:24 I/Onebot: 服务端版本信息
{
"status": "ok",
"retcode": 0,
"data": {
"app_name": "NapCat.Onebot",
"protocol_version": "v11",
"app_version": "2.2.36"
},
"message": "",
"wording": "",
"echo": 0
}
2024-09-02 10:33:24 D/Onebot: Send to server --> {"action":"get_login_info","echo":1}
2024-09-02 10:33:25 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":{"user_id":2214438158,"nickname":"苏布思克瑞勃"},"message":"","wording":"","echo":1}
2024-09-02 10:33:25 D/Onebot: Send to server --> {"action":"get_friend_list","echo":2}
2024-09-02 10:33:25 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":2}
2024-09-02 10:33:25 D/Onebot: Send to server --> {"action":"get_group_list","echo":3}
2024-09-02 10:33:25 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":3}
2024-09-02 10:34:02 D/Onebot: Client received <-- {删除处理}
2024-09-02 10:34:02 D/Onebot: Send to server --> {"action":"get_group_member_list","params":{"group_id":删除处理},"echo":4}
2024-09-02 10:34:02 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":4}
2024-09-02 10:34:19 D/Onebot: Client received <-- {删除处理}
2024-09-02 10:34:24 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:34:24 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:34:29 I/Onebot: 正在重连...
2024-09-02 10:34:29 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:35:29 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:35:29 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:35:34 I/Onebot: 正在重连...
2024-09-02 10:35:34 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:35:34 D/Onebot: Client received <-- {"time":1725244534,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:36:34 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:36:34 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:36:39 I/Onebot: 正在重连...
2024-09-02 10:36:39 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:36:39 D/Onebot: Client received <-- {"time":1725244599,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:37:39 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:37:39 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:37:44 I/Onebot: 正在重连...
2024-09-02 10:37:44 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:37:44 D/Onebot: Client received <-- {"time":1725244664,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:37:59 D/Onebot: Client received <-- {删除处理}
2024-09-02 10:38:44 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:38:44 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:38:49 I/Onebot: 正在重连...
2024-09-02 10:38:49 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:38:49 D/Onebot: Client received <-- {"time":1725244729,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:39:31 I/Onebot: ▌ 服务器连接因 主动关闭 已关闭 (关闭码: NORMAL)
2024-09-02 10:39:51 I/Onebot: Overflow v2.16.0-795845b-SNAPSHOT 正在运行
2024-09-02 10:39:51 I/Onebot: 连接到 WebSocket: ws://127.0.0.1:3001
2024-09-02 10:39:51 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:39:51 D/Onebot: Send to server --> {"action":"get_version_info","echo":0}
2024-09-02 10:39:51 D/Onebot: Client received <-- {"time":1725244791,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:39:51 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":{"app_name":"NapCat.Onebot","protocol_version":"v11","app_version":"2.2.36"},"message":"","wording":"","echo":0}
2024-09-02 10:39:51 I/Onebot: 服务端版本信息
{
"status": "ok",
"retcode": 0,
"data": {
"app_name": "NapCat.Onebot",
"protocol_version": "v11",
"app_version": "2.2.36"
},
"message": "",
"wording": "",
"echo": 0
}
2024-09-02 10:39:51 D/Onebot: Send to server --> {"action":"get_login_info","echo":1}
2024-09-02 10:39:51 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":{"user_id":2214438158,"nickname":"苏布思克瑞勃"},"message":"","wording":"","echo":1}
2024-09-02 10:39:51 D/Onebot: Send to server --> {"action":"get_friend_list","echo":2}
2024-09-02 10:39:51 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":2}
2024-09-02 10:39:51 D/Onebot: Send to server --> {"action":"get_group_list","echo":3}
2024-09-02 10:39:51 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":3}
2024-09-02 10:39:58 D/Onebot: Client received <-- {删除处理}
2024-09-02 10:39:58 D/Onebot: Send to server --> {"action":"get_group_member_list","params":{"group_id":删除处理},"echo":4}
2024-09-02 10:39:58 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":4}
2024-09-02 10:40:51 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:40:51 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:40:56 I/Onebot: 正在重连...
2024-09-02 10:40:56 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:40:56 D/Onebot: Client received <-- {"time":1725244856,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
删除处理
2024-09-02 10:41:42 I/Onebot: ▌ 服务器连接因 主动关闭 已关闭 (关闭码: NORMAL)
2024-09-02 10:48:29 I/Onebot: Overflow v2.16.0-795845b-SNAPSHOT 正在运行
2024-09-02 10:48:29 I/Onebot: 连接到 WebSocket: ws://127.0.0.1:3001
2024-09-02 10:48:29 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:48:29 D/Onebot: Send to server --> {"action":"get_version_info","echo":0}
2024-09-02 10:48:29 D/Onebot: Client received <-- {"time":1725245309,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:48:29 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":{"app_name":"NapCat.Onebot","protocol_version":"v11","app_version":"1.8.6"},"message":"","wording":"","echo":0}
2024-09-02 10:48:29 I/Onebot: 服务端版本信息
{
"status": "ok",
"retcode": 0,
"data": {
"app_name": "NapCat.Onebot",
"protocol_version": "v11",
"app_version": "1.8.6"
},
"message": "",
"wording": "",
"echo": 0
}
2024-09-02 10:48:29 D/Onebot: Send to server --> {"action":"get_login_info","echo":1}
2024-09-02 10:48:29 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":{"user_id":2214438158,"nickname":"苏布思克瑞勃"},"message":"","wording":"","echo":1}
2024-09-02 10:48:29 D/Onebot: Send to server --> {"action":"get_friend_list","echo":2}
2024-09-02 10:48:29 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":2}
2024-09-02 10:48:29 D/Onebot: Send to server --> {"action":"get_group_list","echo":3}
2024-09-02 10:48:30 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":3}
2024-09-02 10:48:41 D/Onebot: Send to server --> {"action":"get_group_member_list","params":{"group_id":删除处理},"echo":4}
2024-09-02 10:48:42 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":4}
2024-09-02 10:48:47 D/Onebot: Client received <-- {"self_id":2214438158,"user_id":删除处理,"time":1725245327,"message_id":2024975200,"message_seq":2024975200,"real_id":2024975200,"message_type":"group","sender":{"user_id":删除处理,"nickname":"嘞噜酱!","card":"删除处理","role":"member"},"raw_message":"跟你们瓦p不熟","font":14,"sub_type":"normal","message":[{"data":{"text":"跟你们瓦p不熟"},"type":"text"}],"message_format":"array","post_type":"message","group_id":删除处理}
2024-09-02 10:48:54 D/Onebot: Client received <-- {"self_id":2214438158,"user_id":删除处理,"time":1725245334,"message_id":182817178,"message_seq":182817178,"real_id":182817178,"message_type":"group","sender":{"user_id":删除处理,"nickname":"嘞噜酱!","card":"删除处理","role":"member"},"raw_message":"[CQ:image,file=B3CC60E5A81F12E233F2FC27F8704696.jpg,subType=1,file_id=00000000-2fa8-85cd-66d5-27961586e158,url=https://multimedia.nt.qq.com.cn/download?appid=1407&fileid=Cgk5Mjg2NDkxOTMSFPbnmkfeMgkFLDtSAlie50NT3s-xGISiCSD_CiivwaHan6OIA1CAvaMB&spec=0&rkey=CAESKBkcro_MGujoYnMxAP9BMZRPRWzCXYumoC7xvdp6EU_UdaYYxMcjyIQ,file_size=151812]","font":14,"sub_type":"normal","message":[{"data":{"file":"B3CC60E5A81F12E233F2FC27F8704696.jpg","subType":1,"file_id":"00000000-2fa8-85cd-66d5-27961586e158","url":"https://multimedia.nt.qq.com.cn/download?appid=1407&fileid=Cgk5Mjg2NDkxOTMSFPbnmkfeMgkFLDtSAlie50NT3s-xGISiCSD_CiivwaHan6OIA1CAvaMB&spec=0&rkey=CAESKBkcro_MGujoYnMxAP9BMZRPRWzCXYumoC7xvdp6EU_UdaYYxMcjyIQ","file_size":"151812"},"type":"image"}],"message_format":"array","post_type":"message","group_id":删除处理}
2024-09-02 10:49:29 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:49:29 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:49:34 I/Onebot: 正在重连...
2024-09-02 10:49:34 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:49:34 D/Onebot: Client received <-- {"time":1725245374,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:50:16 D/Onebot: Client received <-- {"self_id":2214438158,"user_id":删除处理,"time":1725245415,"message_id":1252488422,"message_seq":1252488422,"real_id":1252488422,"message_type":"group","sender":{"user_id":删除处理,"nickname":"Mako","card":"怎茉,你不服气?","role":"member"},"raw_message":"下面我要at一个有三个超凡号的炸鱼勾","font":14,"sub_type":"normal","message":[{"data":{"text":"下面我要at一个有三个超凡号的炸鱼勾"},"type":"text"}],"message_format":"array","post_type":"message","group_id":删除处理}
2024-09-02 10:50:18 D/Onebot: Client received <-- {"self_id":2214438158,"user_id":删除处理,"time":1725245418,"message_id":1389430368,"message_seq":1389430368,"real_id":1389430368,"message_type":"group","sender":{"user_id":删除处理,"nickname":"Mako","card":"怎茉,你不服气?","role":"member"},"raw_message":"[CQ:at,qq=删除处理,name=删除处理]","font":14,"sub_type":"normal","message":[{"type":"at","data":{"qq":"删除处理","name":"删除处理"}}],"message_format":"array","post_type":"message","group_id":删除处理}
2024-09-02 10:50:34 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:50:34 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:50:39 I/Onebot: 正在重连...
2024-09-02 10:50:39 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:50:39 D/Onebot: Client received <-- {"time":1725245439,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:51:34 D/Onebot: Client received <-- {"self_id":2214438158,"user_id":2101297621,"time":1725245494,"message_id":841560625,"message_seq":841560625,"real_id":841560625,"message_type":"group","sender":{"user_id":2101297621,"nickname":"云中送堇来","card":"云中送堇来吸氧了喵","role":"member"},"raw_message":"[CQ:at,qq=删除处理,name=怎茉,你不服气?]","font":14,"sub_type":"normal","message":[{"type":"at","data":{"qq":"删除处理","name":"怎茉,你不服气?"}}],"message_format":"array","post_type":"message","group_id":删除处理}
2024-09-02 10:51:39 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:51:39 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:51:44 I/Onebot: 正在重连...
2024-09-02 10:51:44 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:51:44 D/Onebot: Client received <-- {"time":1725245504,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:51:44 D/Onebot: Client received <-- {"self_id":2214438158,"user_id":2101297621,"time":1725245504,"message_id":1583924987,"message_seq":1583924987,"real_id":1583924987,"message_type":"group","sender":{"user_id":2101297621,"nickname":"云中送堇来","card":"云中送堇来吸氧了喵","role":"member"},"raw_message":"[CQ:at,qq=删除处理,name=删除处理]","font":14,"sub_type":"normal","message":[{"type":"at","data":{"qq":"删除处理","name":"删除处理"}}],"message_format":"array","post_type":"message","group_id":删除处理}
2024-09-02 10:52:44 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 10:52:44 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 10:52:49 I/Onebot: 正在重连...
2024-09-02 10:52:49 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 10:52:49 D/Onebot: Client received <-- {"time":1725245569,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 10:53:30 I/Onebot: ▌ 服务器连接因 主动关闭 已关闭 (关闭码: NORMAL)
2024-09-02 11:25:21 I/Onebot: Overflow v2.16.0-795845b-SNAPSHOT 正在运行
2024-09-02 11:25:21 I/Onebot: 连接到 WebSocket: ws://127.0.0.1:3001
2024-09-02 11:25:21 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 11:25:22 D/Onebot: Send to server --> {"action":"get_version_info","echo":0}
2024-09-02 11:25:22 D/Onebot: Client received <-- {"time":1725247521,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 11:25:22 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":{"app_name":"NapCat.Onebot","protocol_version":"v11","app_version":"1.8.6"},"message":"","wording":"","echo":0}
2024-09-02 11:25:22 I/Onebot: 服务端版本信息
{
"status": "ok",
"retcode": 0,
"data": {
"app_name": "NapCat.Onebot",
"protocol_version": "v11",
"app_version": "1.8.6"
},
"message": "",
"wording": "",
"echo": 0
}
2024-09-02 11:25:22 D/Onebot: Send to server --> {"action":"get_login_info","echo":1}
2024-09-02 11:25:22 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":{"user_id":2214438158,"nickname":"苏布思克瑞勃"},"message":"","wording":"","echo":1}
2024-09-02 11:25:22 D/Onebot: Send to server --> {"action":"get_friend_list","echo":2}
2024-09-02 11:25:22 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":2}
2024-09-02 11:25:22 D/Onebot: Send to server --> {"action":"get_group_list","echo":3}
2024-09-02 11:25:22 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":3}
2024-09-02 11:26:21 I/Onebot: ▌ 服务器连接因 未知原因 已关闭 (关闭码: ABNORMAL_CLOSE)
2024-09-02 11:26:21 W/Onebot: 等待 5.0 秒后重连 (第 1/5 次)
2024-09-02 11:26:26 I/Onebot: 正在重连...
2024-09-02 11:26:26 I/Onebot: ▌ 已连接到服务器 ┈━═☆
2024-09-02 11:26:26 D/Onebot: Client received <-- {"time":1725247586,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 11:26:50 D/Onebot: Client received <-- {"self_id":2214438158,"user_id":删除处理,"time":1725247610,"message_id":1030397898,"message_seq":1030397898,"real_id":1030397898,"message_type":"group","sender":{"user_id":删除处理,"nickname":"希望のナナ","card":"猫猫猫咪好伙伴!","role":"member"},"raw_message":"[CQ:image,file={45455FA4-54D8-F8D8-F084-2AD5C7DC7A0E}.jpg,subType=0,file_id=00000000-2fa8-85cd-66d5-307a5f6a34ee,url=https://gchat.qpic.cn/gchatpic_new/删除处理/删除处理-3084538570-45455FA454D8F8D8F0842AD5C7DC7A0E/0?term=255&is_origin=0,file_size=163952]","font":14,"sub_type":"normal","message":[{"data":{"file":"{45455FA4-54D8-F8D8-F084-2AD5C7DC7A0E}.jpg","subType":0,"file_id":"00000000-2fa8-85cd-66d5-307a5f6a34ee","url":"https://gchat.qpic.cn/gchatpic_new/删除处理/删除处理-3084538570-45455FA454D8F8D8F0842AD5C7DC7A0E/0?term=255&is_origin=0","file_size":"163952"},"type":"image"}],"message_format":"array","post_type":"message","group_id":删除处理}
2024-09-02 11:26:51 D/Onebot: Send to server --> {"action":"get_group_member_list","params":{"group_id":删除处理},"echo":4}
2024-09-02 11:26:51 D/Onebot: Client received <-- {"status":"ok","retcode":0,"data":[删除处理],"message":"","wording":"","echo":4}
2024-09-02 11:28:59 D/Onebot: Client received <-- {"time":1725247739,"self_id":2214438158,"post_type":"meta_event","meta_event_type":"lifecycle","sub_type":"connect"}
2024-09-02 11:29:02 D/Onebot: Client received <-- {"time":1725247742,"self_id":2214438158,"post_type":"notice","group_id":807518260,"user_id":906657136,"notice_type":"essence","sender_id":906657136,"operator_id":1285309838,"sub_type":"add"}
2024-09-02 11:29:02 D/Onebot: Client received <-- {"time":1725247742,"self_id":2214438158,"post_type":"notice","group_id":807518260,"user_id":1290939869,"notice_type":"essence","sender_id":1290939869,"operator_id":1285309838,"sub_type":"add"}
2024-09-02 11:29:02 I/Onebot: ▌ 服务器连接因 主动关闭 已关闭 (关闭码: NORMAL)
最后这里是我手动关闭的
补充信息
No response
abnormal close 不是 overflow 这边的问题。
abnormal close 不是 overflow 这边的问题。
好像的确不是overflow的问题,我又看了眼日志,也出现这情况了,我去那边反馈下
根据关闭码注释原文,出现 abnormal close 的原因是
It is designated for use in applications expecting a status code to indicate that the connection was closed abnormally, e.g. without sending or receiving a Close control frame.
也就是没收到关闭指令,连接就被异常关闭了,被谁掐断的我不知道。