求助，websocket.connect 创建第28234个socket必失败，ulimit 已经改过了。

[lsx1994]

系统是 ubuntu server lts 20.0.4，CPU8核，内存16G，运行机器人时CPU和内存只占用一半，ulimit n 显示 1000000。

机器人使用自带的websocket.connect 发起连接，报错时在另一个机器继续开，服务器是可以继续接收连接的。

skynet更新到最新主干：eaba8f9

不管重启多少次机器人，都是在28234的时候失败 ，报错log：

 
24/02/22 22:10:58.44 [:00006e53] LAUNCH snlua robot/RobotClient 28233
24/02/22 22:10:58.45 [:00006e53] init service failed: ./skyframe/engine/lualib/http/sockethelper.lua:98: socket_error5
stack traceback:
	[C]: in function 'error'
	./skyframe/engine/lualib/http/sockethelper.lua:98: in function 'http.sockethelper.connect'
	./skyframe/engine/lualib/http/websocket.lua:448: in function 'skyframe.engine.lualib.http.websocket.connect'
	./skyframe/engine/develop/net/WSClient.lua:32: in method 'Connect'
	./robot/module/RobotLogin.lua:15: in method 'RobotStart'
	./robot/RobotModule.lua:28: in method 'RobotStart'
	./robot/RobotClient.lua:33: in method 'Run'
	./skyframe/engine/develop/BaseServer.lua:58: in upvalue 'start'
	./skyframe/engine/lualib/skynet.lua:935: in function <./skyframe/engine/lualib/skynet.lua:933>
	[C]: in function 'xpcall'
	./skyframe/engine/lualib/skynet.lua:937: in function 'skynet.init_service'
	./skyframe/engine/lualib/skynet.lua:950: in upvalue 'f'
	./skyframe/engine/lualib/skynet.lua:253: in function <./skyframe/engine/lualib/skynet.lua:252>
24/02/22 22:10:58.45 [:00006e53] KILL self
24/02/22 22:10:58.45 [:00000008] init service failed: ./skyframe/engine/lualib/skynet.lua:590: call failed
stack traceback:
	[C]: in function 'error'
	./skyframe/engine/lualib/skynet.lua:590: in upvalue 'yield_call'
	./skyframe/engine/lualib/skynet.lua:607: in function 'skynet.call'
	(...tail calls...)
	./robot/RobotMain.lua:21: in upvalue 'start'
	./skyframe/engine/lualib/skynet.lua:935: in function <./skyframe/engine/lualib/skynet.lua:933>
	[C]: in function 'xpcall'
	./skyframe/engine/lualib/skynet.lua:937: in function 'skynet.init_service'
	./skyframe/engine/lualib/skynet.lua:950: in upvalue 'f'
	./skyframe/engine/lualib/skynet.lua:253: in function <./skyframe/engine/lualib/skynet.lua:252>
  

[firedtoad]

检查一下是不是内存不够了？ lsx1994 ***@***.***> 于2022年2月24日周四 17:50写道：

…

ulimit 信息： [image: image] <https://user-images.githubusercontent.com/66242418/155499893-dc29f416-c220-4acc-9599-d45dcc678694.png> 报错log： 不管重启多少次机器人，都是在28234的时候失败 [image: image] <https://user-images.githubusercontent.com/66242418/155499930-fffe40e8-660f-4860-a644-b7ee5237b17c.png> 机器人使用自带的websocket.connect 发起连接。 机器人报错时在另一个机器继续开，服务器是可以继续接收连接的。 — Reply to this email directly, view it on GitHub <#1542>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAK6QJSPMR2ZOYVGTOQVTKLU4X5OLANCNFSM5PG32WFA> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[lsx1994]

还有一半的内存

[aasdpiao]

一般都还是要标注一下skynet的版本号吧. 或者更新到最新版本看看.
感觉能启动到20000+应该并非代码问题,一般是系统级别的限制. 或者是一些内存泄露引起的吧

[lsx1994]

下午刚更新了最新版， 还是一样

[sniper00]

下午刚更新了最新版， 还是一样

建议打印下socket error 具体内容

[lsx1994]

下午刚更新了最新版， 还是一样

建议打印下socket error 具体内容

框架统一打印[Socket Error]，我加了序号重新跑了一遍

[cloudwu]

用图片贴文本的帖子不回复。

[lsx1994]

不好意思我改好了，我以为只有代码要贴文本。

[cloudwu]

https://github.com/cloudwu/skynet/blob/master/lualib/http/sockethelper.lua#L93 此处 socket.open 返回 nil 连接失败时，还有第二个返回值是出错信息。建议输出出来看看失败原因。

[lsx1994]

返回值是 Cannot assign requested address

我把/etc/sysctl.conf 的 net.ipv4.ip_local_port_range 改成 10000 65000 就可以了，谢谢。