Skynet is a lightweight online game framework

Related tags

Game skynet
Overview

skynet logo

Skynet is a lightweight online game framework which can be used in many other fields.

Build

For Linux, install autoconf first for jemalloc:

git clone https://github.com/cloudwu/skynet.git
cd skynet
make 'PLATFORM'  # PLATFORM can be linux, macosx, freebsd now

Or:

export PLAT=linux
make

For FreeBSD , use gmake instead of make.

Test

Run these in different consoles:

./skynet examples/config	# Launch first skynet node  (Gate server) and a skynet-master (see config for standalone option)
./3rd/lua/lua examples/client.lua 	# Launch a client, and try to input hello.

About Lua version

Skynet now uses a modified version of lua 5.4.2 ( https://github.com/ejoy/lua/tree/skynet54 ) for multiple lua states.

Official Lua versions can also be used as long as the Makefile is edited.

How To Use

Comments
  • SSM版本实践

    SSM版本实践

    我之前在空闲时间一直对ssm分支做测试,优化,在昨天最后一次提交 #1026 后。压测了一天后,内存还是稳定的,之前的内存错误和泄漏已经没有了,这个版本已经趋近稳定。

    测试过程发现ssm版本有一个最重要的问题是回收效率(可能有之前的bug影响),我尝试了一个优化方案去减少SSM短字符串产生,有很多临时字符串是不需要进入SSM的,如

    • 比如说二进制字符串(skynet.packstring,sproto.encode,string.pack,...),
    • 不会用于比较的字符串(skynet.error传递的字符串)

    方法是单独提供一个接口使用luaS_createlngstrobj(对外的接口是lua_pushtmpstring)创建字符串,如果字符串长度大于LUAI_MAXSHORTLEN 那么就和LUA_TLNGSTR表现一致,小于等于LUAI_MAXSHORTLEN就会有问题,但是这些字符串不用于比较所以也没有问题,主要是这些字符串不会进入SSM。

    • 最开始的没有统计

    • 使用了lua_pushtmpstring替换了lua-sproto中打包,压缩,解压代码中使用的lua_pushlstring 1000机器人压测SSM字符串新增是80万/分钟

    • 然后继续优化了 lua-seri中的packstring,string库中添加了一些列接口tpack,tformat(替换对应的接口中的lua_pushlstring) 1000机器人压测SSM字符串新增是18万/分钟

    初步达到了效果,但是我今天中午整理代码的我觉得改动的有掉多了,坑肯定更多。不小心用错了都很难发现。但是可不可以支持lua_pushtmpstring和LUA_TLNGSTR的兼容呢。

    我能想到的就是修改luaV_equalobj,但是有了这个思路,那么我可以不可以直接支持不同虚拟机产生的LUA_TLNGSTR,那么sharedtable就可以直接使用了,SSM可以不用了,那么就不需要lua_pushtmpstring,上面的优化都不需要了。

    中午我试了一下这个想法,把

    #define eqshrstr(a,b)	check_exp((a)->tt == LUA_TSHRSTR, (a) == (b))
    

    替换成

    #define eqshrstr(a,b)	check_exp((a)->tt == LUA_TSHRSTR, (a) == (b)?1:((isshared(a)||isshared(b))?luaS_eqshrstr(a, b):0))
    

    luaS_eqshrstr直接实现不同指针的短字符串比较 把LUA_TSHRSTR字符串加入了共享来支持sharetable 删除了SSM相关的代码

    初步实现了该想法 提交(31bc54c3af413f3ee673aab1062f703b5619ed7f) 分支(https://github.com/hongling0/skynet/tree/sharedshrstr)

    @cloudwu 看要不要采纳这个修改,还有没有什么问题,如果采纳的话我再提交pr

    opened by hongling0 48
  • socket处于close_wait状态无法关闭

    socket处于close_wait状态无法关闭

    skynet更新到最新代码遇到了一个问题。

    之前版本我经常使用 ehco "help" | nc localhost port 这样的命令来执行一些 debug 命令。因为 nc 运行完会自动退出,所以socket也就断开了,skynet那边也能正常的关闭掉这条连接。但新的skynet代码运行后,发现通过这样的命令开启的socket连接无法正确断开了。nc的端口这边处于 FIN_WAIT2 状态,skynet的端口处于 CLOSE_WAIT 状态,说明 nc 这边发送了 FIN,skynet 收到了FIN,但是 nc 这边没有收到 skynet 回发的 FIN。怀疑是新加的半连接状态哪里处理的有问题。我是用 debug_console 测试的。其他类型服务开启的端口应该也会有类似问题。

    QQ截图20210309151404

    opened by rangercyh 42
  • Protect against spurious wakeups

    Protect against spurious wakeups

    opened by elfring 37
  • 关于skynet网络收发问题

    关于skynet网络收发问题

    在网络收发量较大的时候(MMO大量场景广播消息),skynet socket线程那里表面看起来反应缓慢,accept和正常网络收发的反应都有较大延迟,下面描述下:

    服务器负荷: us 用户态占比 sy 系统态占比 id 空闲态占比 hi 硬中断 si 软中断 wa 等待IO 16核16G,每核心大致都是 (5-25us) + (5-30sy),且每核基本都能保持50id,偶尔会有一两个核有5-15si,没发现hi和wa 服务器出入口带宽使用: 出:30Mb/s 入:20Mb/s 内存使用: 较为平稳,关闭了swap

    在出现卡点的时候,在socket线程epoll抛ACCEPT事件那里打log,发现在服务器本地nc上去,大概等了5秒才有反应并成功出log,如果是nc其他进程的端口则正常,证明有某些原因导致skynet epoll对事件的侦测出现了延缓,暂不确定是内核提交事件的延缓(系统抑或进程的部分缓冲区的限制?),还是skynet网络收发线程过于繁忙。但如上所述,如果是skynet线程问题,不应该出现16个核心有稳定的空闲态,这里比较费解。

    opened by linxiaolong 26
  • 服务器在线上跑了几天,遇到了一个网络线程卡死的情况,但是又很难重现。

    服务器在线上跑了几天,遇到了一个网络线程卡死的情况,但是又很难重现。

    1,发现有一条线程占用CPU到90多左右 PID为21042 2,用pstack看了一下该进程,发现PID为21042的线程的堆栈为 write() _IO_new_file_write() _GI__IO_file_write() buffered_vfprintf() vfprintf() fprintf() send_list_udp() send_list() send_buffer() send_buffer() socket_server_poll() skynet_socket_poll() thread_socket() start_thread() ... 3,用strace查看了一下,发现该网络线程一直在做下面事情 write(2, "socket-server":udp(3974) sendt"..., 58) select(6, [5], NULL, NULL, {0,0}) = 0 (TimeOut) sendto(14, '\0\4\1\0\0\1\0\0\0\0\0\0\3api\10music440\3com\0\0\1".... 34, 0, 0x7fbbfc3ff590, 0) = -1 EINVAL (Invalid argument) 重复上面的输出

    4,用strace查出一直在重复的调用sendto失败了 static int send_list_udp(struct socket_server *ss, struct socket *s, struct wb_list *list, struct socket_message result) { while (list->head) { struct write_buffer * tmp = list->head; union sockaddr_all sa; socklen_t sasz = udp_socket_address(s, tmp->udp_address, &sa); int err = sendto(s->fd, tmp->ptr, tmp->sz, 0, &sa.s, sasz); if (err < 0) { switch(errno) { case EINTR: case AGAIN_WOULDBLOCK: return -1; } fprintf(stderr, "socket-server : udp (%d) sendto error %s.\n",s->id, strerror(errno)); return -1; / // ignore udp sendto error

    		result->opaque = s->opaque;
    		result->id = s->id;
    		result->ud = 0;
    		result->data = NULL;
    
    		return SOCKET_ERR;
    

    */ }

    	s->wb_size -= tmp->sz;
    	list->head = tmp->next;
    	write_buffer_free(ss,tmp);
    }
    list->tail = NULL;
    
    return -1;
    

    } 5,理论上sendto(14, '\0\4\1\0\0\1\0\0\0\0\0\0\3api\10music440\3com\0\0\1".... 34, 0, 0x7fbbfc3ff590, 0)最后一个参数不应为0的,但是调用时最后一个参数却是0,但是一直报Invalid argument错误

    6,业务层用有用了dns解析,所以这里用了udp

    7,没有更多的信息了,因为是在线上运行,发现有死循环后大致看了一下就把服务器重启了,在线下又很难重现出来

    bug 
    opened by jjchenlian 25
  • 这代码真不忍看

    这代码真不忍看

    什么东西都自己造个轮子,这样真的好么?代码还没有严格的工程化风格。各种不同含义的int不能用typedef重命名一下?看的不是一般的难受。c里面还硬编码了lua代码。用c++可以不超过2000行代码,用go可以不超过500行代码搞定的事,结果整出数万行代码。

    c调用那么多lua vm的代码好么?lua vm和c互相调用,简直和机房的布线一样乱。连个流程文档都没有。

    现在为止,没有一个ide支持makefile,该换了。要不要我pr一个cmake?

    opened by rotencode 25
  • socket 重连重入可能导致协程挂起不返回

    socket 重连重入可能导致协程挂起不返回

    我有一个 db 服务,服务中有一个连接 mysql 的连接和一个 redis 连接(可忽略),mysql 设置了 interactive_timeout=1800, wait_timeout=1800, 超时连接断开时,服务有打印 socket closed by peer : 127.0.0.1 3306, 在连接断开的情况下,db 服务收到了连续两条消息,都执行 skynet.db.mysql.query

    function _M.query(self, query)
        local querypacket = _compose_query(self, query)
        local sockchannel = self.sockchannel
        if not self.query_resp then
            self.query_resp = _query_resp(self)
        end
        return sockchannel:request(querypacket, self.query_resp)
    end
    

    服务的协程列表

    task :0000001d
    thread: 0x7fa9700bc7e8 session: 51482	stack traceback:
    	[C]: in function 'coroutine.yield'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:390: in upvalue 'suspend_sleep'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:416: in function 'skynet.wait'
    	..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:127: in upvalue 'pop_response'
    	..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:177: in function <..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:175>
    	[C]: in function 'skynet.pcall'
    	..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:324: in upvalue 'f'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:280: in function <.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:252>
    thread: 0x7fa974106018 session: 24167	stack traceback:
    	[C]: in function 'coroutine.yield'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:390: in upvalue 'suspend_sleep'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:416: in function 'skynet.wait'
    	..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:422: in upvalue 'block_connect'
    	..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:480: in function <..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:479>
    	(...tail calls...)
    	[C]: in function 'skynet.pcall'
    	...p_server/framework_one_world/skynet_ext/lualib/mysql.lua:26: in method 'execute'
    	...p_server/framework_one_world/skynet_ext/lualib/mysql.lua:147: in method 'query'
    	..._server/framework_one_world/service/dbd/mysqlHandler.lua:26: in function 'mysqlHandler.query'
    	.../pp_server/framework_one_world/service/dbd/dbStorage.lua:41: in upvalue 'readFromMysql'
    	.../pp_server/framework_one_world/service/dbd/dbStorage.lua:118: in function 'dbStorage.get'
    	...er/framework_one_world/service/dbd/strings/stringsDB.lua:75: in method 'get'
    	...amework_one_world/service/dbd/strings/stringsHandler.lua:54: in function 'strings.stringsHandler.get'
    	...p/pp_server/framework_one_world/service/dbd/luaproto.lua:40: in function <...p/pp_server/framework_one_world/service/dbd/luaproto.lua:31>
    	(...tail calls...)
    	[C]: in function 'xpcall'
    	...d/skynet_ext/lualib/serviceFramework/serviceLauncher.lua:151: in upvalue 'f'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:253: in function <.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:252>
    thread: 0x7fa984151128 session: 51485	stack traceback:
    	[C]: in function 'coroutine.yield'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:390: in upvalue 'suspend_sleep'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:416: in function 'skynet.wait'
    	..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:127: in upvalue 'pop_response'
    	..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:177: in function <..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:175>
    	[C]: in function 'skynet.pcall'
    	..._world/skynet_ext/skynet/lualib/skynet/socketchannel.lua:324: in upvalue 'f'
    	.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:280: in function <.../framework_one_world/skynet_ext/skynet/lualib/skynet.lua:252>
    

    mysql 对象:

    {
    	"mysqlObj" = {
    		"_server_status" = 2,
    		"packet_no" = 1,
    		"_server_capabilities" = 3254779903,
    		"_server_ver" = "5.7.30-33-log",
    		"protocol_ver" = 10,
    		"query_resp" = function: 0x7fa9841a70d0,
    		"_max_packet_size" = 1048576,
    		"sockchannel" = {
    			"__dispatch_thread" = thread: 0x7fa9700bc7e8,
    			"__authcoroutine" = false,
    			"__auth" = function: 0x7fa968001040,
    			"__thread" = {},
    			"__request" = {},
    			"__overload" = false,
    			"__sock" = false,
    			"__closed" = false,
    			"__result" = {},
    			"__connecting" = {
    				2 = thread: 0x7fa974106018,
    			},
    			"__host" = "127.0.0.1",
    			"__port" = 3306,
    			"__wait_response" = thread: 0x7fa9700bc7e8,
    			"__result_data" = {},
    		},
    		"_server_lang" = 45,
    	},
    }
    

    __connecting 中的协程没有被 wakeup

    我在本地把 mysql 连接超时设置为 10s,连接断开后注入一个测试脚本到 db 服,连续 fork 两个协程调用 mysql.query 不是必现,有概率出现

    opened by TQING1990 24
  • lua5.4中lua-bson中判断table是否是数组is_rawarray的问题

    lua5.4中lua-bson中判断table是否是数组is_rawarray的问题

    这篇文章的方式好像不适用lua5.4, https://blog.codingnow.com/2016/06/seri_lua_object.html 这个table用is_rawarray判断会认为是数组

    local t = {
        [1] = "a",
        [2] = "b",
        [100] = "c",
    }
    

    发现 luaH_next函数5.4有所改动: unsigned int asize = luaH_realasize(t);. 上面示例执行时直接从hash part开始了

    lua5.4

    int luaH_next (lua_State *L, Table *t, StkId key) {
      unsigned int asize = luaH_realasize(t);
      unsigned int i = findindex(L, t, s2v(key), asize);  /* find original key */
      for (; i < asize; i++) {  /* try first array part */
        if (!isempty(&t->array[i])) {  /* a non-empty entry? */
          setivalue(s2v(key), i + 1);
          setobj2s(L, key + 1, &t->array[i]);
          return 1;
        }
      }
      for (i -= asize; cast_int(i) < sizenode(t); i++) {  /* hash part */
        if (!isempty(gval(gnode(t, i)))) {  /* a non-empty entry? */
          Node *n = gnode(t, i);
          getnodekey(L, s2v(key), n);
          setobj2s(L, key + 1, gval(n));
          return 1;
        }
      }
      return 0;  /* no more elements */
    }
    

    lua5.3

    int luaH_next (lua_State *L, Table *t, StkId key) {
      unsigned int i = findindex(L, t, key);  /* find original element */
      for (; i < t->sizearray; i++) {  /* try first array part */
        if (!ttisnil(&t->array[i])) {  /* a non-nil value? */
          setivalue(key, i + 1);
          setobj2s(L, key+1, &t->array[i]);
          return 1;
        }
      }
      for (i -= t->sizearray; cast_int(i) < sizenode(t); i++) {  /* hash part */
        if (!ttisnil(gval(gnode(t, i)))) {  /* a non-nil value? */
          setobj2s(L, key, gkey(gnode(t, i)));
          setobj2s(L, key+1, gval(gnode(t, i)));
          return 1;
        }
      }
      return 0;  /* no more elements */
    }
    
    opened by sniper00 20
  • mongodb模块是不是从来没测试过呢,还是使用问题呢?

    mongodb模块是不是从来没测试过呢,还是使用问题呢?

    配置好testmongodb.lua 然后用skynet拉起来 一直连接失败,已确认网络无问题。延迟也可以接受 然跟代码发现, lualib/skynet/db/mongo.lua 162

    obj.__sock = socketchannel.channel {
    		host = obj.host,
    		port = obj.port,
    		response = dispatch_reply,
    		auth = mongo_auth(obj),
    		backup = backup,
    		nodelay = true,
    	}
    	setmetatable(obj, client_meta)
    	obj.__sock:connect(true)	-- try connect only	once
    	return obj
    

    是不是mongo_auth(obj)在没有连接的情况下就被调用了。 因为obj.__sock:connect(true)在后面才被执行。

    opened by lpcdma 20
  • 升级1.4.0,发现在强杀客户端的情况下有概率出现gateserver.lua中的MSG.close(fd)函数没调用到

    升级1.4.0,发现在强杀客户端的情况下有概率出现gateserver.lua中的MSG.close(fd)函数没调用到

    说明:1.3 版本的没有这个问题。同样都有用nginx做转发业务。

    MSG.close 事件由 lua-netpack.c 中的 lfilter 函数触发,类型是 SKYNET_SOCKET_TYPE_CLOSE 而该事件,是由 skynet_socket_poll 触发,类型是 SOCKET_CLOSE

    而 Commit: 56c70dc7ace1fb668debc254b30adddd711f7e48 这次修复 fix socket half close (#1263) 问题有改动到代码。 如下 if (n==0) 的情况

    static int
    forward_message_tcp(struct socket_server *ss, struct socket *s, struct socket_lock *l, struct socket_message * result) {
    	int sz = s->p.size;
    	char * buffer = MALLOC(sz);
    	int n = (int)read(s->fd, buffer, sz);
    	if (n<0) {
    		FREE(buffer);
    		switch(errno) {
    		case EINTR:
    			break;
    		case AGAIN_WOULDBLOCK:
    			skynet_error(NULL, "socket-server: EAGAIN capture.");
    			break;
    		default:
    			// close when error
    			force_close(ss, s, l, result);
    			result->data = strerror(errno);
    			return SOCKET_ERR;
    		}
    		return -1;
    	}
    	if (n==0) {
    		FREE(buffer);
    		if (nomore_sending_data(s)) {
    			force_close(ss,s,l,result); 
    			return SOCKET_CLOSE;
    		} else { 
    			s->type = SOCKET_TYPE_HALFCLOSE;
    			shutdown(s->fd, SHUT_RD);
    			return -1;  // 怀疑此处返回值有问题
    		}
    	}
    
    	if (s->type == SOCKET_TYPE_HALFCLOSE) {
    		// discard recv data
    		FREE(buffer);
    		return -1;
    	}
    
    	stat_read(ss,s,n);
    
    	if (n == sz) {
    		s->p.size *= 2;
    	} else if (sz > MIN_READ_BUFFER && n*2 < sz) {
    		s->p.size /= 2;
    	}
    
    	result->opaque = s->opaque;
    	result->id = s->id;
    	result->ud = n;
    	result->data = buffer;
    	return SOCKET_DATA;
    }
    
    opened by sue602 19
  • Websocket

    Websocket

    #1053 使用之前加的的ltls实现了websocket wswss协议。提供接口如下:

    websocket.accept(socket_id, handle, protocol) 接受客户端socket_id发送过来的websocket协议。 handle为通知接口,protocolwswss,默认为ws

    websocket.connect(url, header) 发起一个websocket连接,返回socket id。

    websocket.read(id) 以websocket协议读取一个socket id。

    websocket.write(id, data, fmt) 以websocket协议写入一个socket id。data为写入的内容,fmttext或者binary

    websocket.ping(id) 以websocket协议发送ping frame。

    websocket.close(id, code, reason) 以websocket协议关闭socket id,同时可选发送错误码code和错误原因reason

    具体的使用示例可以在simplewebsocket.lua代码中查看。

    opened by lvzixun 19
  • 偶尔出现https读取报错

    偶尔出现https读取报错

    2022-09-27 10:44:02.957961 SKYNET - [:00000012] lua call [0 to :12 : 0 msgsz = 24] error : ./3rd/skynet/lualib/skynet.lua:859: ./3rd/skynet/lualib/skynet.lua:330: ./3rd/skynet/lualib/http/httpc.lua:118: ./3rd/skynet/lualib/http/tlshelper.lua:56: SSL_read error:1

    opened by zhuilang 3
  •  热更新lua代码导致skynet工作线程死锁

    热更新lua代码导致skynet工作线程死锁

    线上游戏服,今早玩家反馈卡顿,上服务器查看情况,发现cpu、负载很低,查看日志发现某服务出现大量的endless,并且当前服务没有任何其他日志输出(其他服务正常)。基于这些情况,执行 “pstack PID“ 查看skynet进程的线程情况发现 Thread 2 异常,具体如下:

    Thread 2 (Thread 0x7f19cf5f7700 (LWP 27881)):
    0  0x00007f19dad6989c in __lll_lock_wait_private () from /lib64/libc.so.6
    1  0x00007f19dacdb45d in _L_lock_121 () from /lib64/libc.so.6
    2  0x00007f19dacd9023 in __GI__IO_un_link () from /lib64/libc.so.6
    3  0x00007f19dacd7fe8 in __GI__IO_file_close_it () from /lib64/libc.so.6
    4  0x00007f19dacd55a9 in freopen64 () from /lib64/libc.so.6
    5  0x00000000004263b9 in luaL_loadfilex_ ([email protected]=0x7f189487af88, [email protected]=0x7f18ace7bac0 "scripts/apis/army.lua", [email protected]=0x7f19bb5d5be0 "bt") at lauxlib.c:794
    6  0x00000000004271fa in luaL_loadfilex ([email protected]=0x7f189487af88, [email protected]=0x7f18ace7bac0 "scripts/apis/army.lua", [email protected]=0x7f19bb5d5be0 "bt") at lauxlib.c:1232
    7  0x000000000042b3d6 in luaB_loadfile (L=0x7f189487af88) at lbaselib.c:322
    8  0x0000000000415763 in luaD_precall ([email protected]=0x7f189487af88, [email protected]=0x7f17a5598360, nresults=2) at ldo.c:532
    9  0x0000000000422576 in luaV_execute ([email protected]=0x7f189487af88, ci=<optimized out>) at lvm.c:1626
    10 0x00000000004158e0 in ccall ([email protected]=0x7f189487af88, func=<optimized out>, [email protected]=-1, [email protected]=1) at ldo.c:577
    11 0x00000000004159ca in luaD_call ([email protected]=0x7f189487af88, func=<optimized out>, [email protected]=-1) at ldo.c:587
    12 0x0000000000412a40 in lua_pcallk ([email protected]=0x7f189487af88, [email protected]=1, [email protected]=-1, [email protected]=2, [email protected]=2, [email protected]=0x42afd0 <finishpcall>) at lapi.c:1071
    13 0x000000000042b07f in luaB_xpcall (L=0x7f189487af88) at lbaselib.c:473
    14 0x0000000000415763 in luaD_precall ([email protected]=0x7f189487af88, [email protected]=0x7f17a55981b0, nresults=3) at ldo.c:532
    15 0x0000000000422576 in luaV_execute ([email protected]=0x7f189487af88, ci=<optimized out>, [email protected]=0x7f17dc692500) at lvm.c:1626
    16 0x0000000000415423 in unroll (L=0x7f189487af88, ud=<optimized out>) at ldo.c:685
    17 0x0000000000414b9a in luaD_rawrunprotected ([email protected]=0x7f189487af88, [email protected]=0x415910 <resume>, [email protected]=0x7f19cf5f4f7c) at ldo.c:144
    18 0x0000000000415a54 in lua_resume ([email protected]=0x7f189487af88, [email protected]=0x7f19a53d4a08, nargs=<optimized out>, [email protected]=5, [email protected]=0x7f19cf5f4fbc) at ldo.c:788
    19 0x00007f19d8ffd05d in lua_resumeX (nresults=0x7f19cf5f4fbc, nargs=5, from=0x7f19a53d4a08, L=0x7f189487af88) at service-src/service_snlua.c:90
    20 auxresume (narg=5, co=0x7f189487af88, L=0x7f19a53d4a08) at service-src/service_snlua.c:146
    21 timing_resume ([email protected]=0x7f19a53d4a08, [email protected]=1, n=5) at service-src/service_snlua.c:198
    22 0x00007f19d8ffd530 in luaB_coresume (L=0x7f19a53d4a08) at service-src/service_snlua.c:217
    23 0x0000000000415763 in luaD_precall ([email protected]=0x7f19a53d4a08, [email protected]=0x7f17d8bf8410, [email protected]=-1) at ldo.c:532
    24 0x000000000042227b in luaV_execute ([email protected]=0x7f19a53d4a08, ci=<optimized out>) at lvm.c:1656
    25 0x00000000004158e0 in ccall (L=0x7f19a53d4a08, func=<optimized out>, nResults=<optimized out>, inc=65537) at ldo.c:577
    26 0x0000000000414b9a in luaD_rawrunprotected ([email protected]=0x7f19a53d4a08, [email protected]=0x411370 <f_call>, [email protected]=0x7f19cf5f52c0) at ldo.c:144
    27 0x0000000000415c5e in luaD_pcall ([email protected]=0x7f19a53d4a08, [email protected]=0x411370 <f_call>, [email protected]=0x7f19cf5f52c0, old_top=192, ef=<optimized out>) at ldo.c:892
    28 0x00000000004129c7 in lua_pcallk ([email protected]=0x7f19a53d4a08, nargs=<optimized out>, [email protected]=-1, [email protected]=0, [email protected]=0, [email protected]=0x42afd0 <finishpcall>) at lapi.c:1059
    29 0x000000000042b0f0 in luaB_pcall (L=0x7f19a53d4a08) at lbaselib.c:456
    30 0x0000000000415763 in luaD_precall ([email protected]=0x7f19a53d4a08, [email protected]=0x7f17d8bf82a0, nresults=2) at ldo.c:532
    31 0x0000000000422576 in luaV_execute ([email protected]=0x7f19a53d4a08, ci=<optimized out>) at lvm.c:1626
    32 0x00000000004158e0 in ccall (L=0x7f19a53d4a08, func=<optimized out>, nResults=<optimized out>, inc=65537) at ldo.c:577
    33 0x0000000000414b9a in luaD_rawrunprotected ([email protected]=0x7f19a53d4a08, [email protected]=0x411370 <f_call>, [email protected]=0x7f19cf5f5590) at ldo.c:144
    34 0x0000000000415c5e in luaD_pcall ([email protected]=0x7f19a53d4a08, [email protected]=0x411370 <f_call>, [email protected]=0x7f19cf5f5590, old_top=48, ef=<optimized out>) at ldo.c:892
    35 0x00000000004129c7 in lua_pcallk ([email protected]=0x7f19a53d4a08, [email protected]=5, [email protected]=0, [email protected]=1, [email protected]=0, [email protected]=0x0) at lapi.c:1059
    36 0x00007f19ce6115b8 in _cb (context=0x7f19b6d38580, ud=0x7f19a53d4a08, type=20, session=2481, source=136, msg=0x7f19b8021900, sz=241) at lualib-src/lua-skynet.c:75
    37 0x00000000004095d6 in dispatch_message ([email protected]=0x7f19b6d38580, [email protected]=0x7f19cf5f5650) at skynet-src/skynet_server.c:276
    38 0x000000000040a1ac in skynet_context_message_dispatch ([email protected]=0x7f19da80b300, q=0x7f19290a86c0, [email protected]=1) at skynet-src/skynet_server.c:336
    39 0x000000000040a95e in thread_worker (p=<optimized out>) at skynet-src/skynet_start.c:163
    40 0x00007f19db955e25 in start_thread () from /lib64/libpthread.so.0
    41 0x00007f19dad5bbad in clone () from /lib64/libc.so.6
    

    看线程堆栈,像是线程调用luaL_loadfilex_ 造成的死锁,比较难复现。 skynet 版本1.5,lua版本是5.4.3

    opened by wanghongshuai137 4
  • 未知原因crash

    未知原因crash

    skynet版本使用的是2022年5月份的,出现过两次crash。使用最新的skynet版本还是会出现crash

    1. 第一次crash,gdb调试结果如下:

    Program terminated with signal 11, Segmentation fault. 0 sweep2old (p=0x7f34a6c2ca00, L=0x7f34a5a1d508) at lgc.c:1059 1059 lgc.c: No such file or directory. Missing separate debuginfos, use: debuginfo-install glibc-2.17-326.el7_9.x86_64 libgcc-4.8.5-44.el7.x86_64 libuuid-2.23.2-65.el7_9.1.x86_64 openssl11-libs-1.1.1k-4.el7.x86_64 zlib-1.2.7-20.el7_9.x86_64 (gdb) bt 0 sweep2old (p=0x7f34a6c2ca00, L=0x7f34a5a1d508) at lgc.c:1059 1 atomic2gen (g=0x7f34a5bbc5d0, L=0x7f34a5a1d508) at lgc.c:1276 2 stepgenfull (g=, L=) at lgc.c:1389 3 genstep (g=, L=) at lgc.c:1423 4 luaC_step ([email protected]=0x7f34a5a1d508) at lgc.c:1692 5 0x00000000004447d9 in luaV_execute ([email protected]=0x7f34a5a1d508, ci=, [email protected]=0x7f34a5a61d00) at lvm.c:1356 6 0x000000000042a7fb in unroll (L=0x7f34a5a1d508, ud=) at ldo.c:717 7 0x000000000042a21a in luaD_rawrunprotected (L=0x7f34a5a1d508, f=0x42c530 , ud=0x7f34ac7d9d7c) at ldo.c:144 8 0x000000000042d870 in lua_resume (L=0x7f34a5a1d508, from=, nargs=4, nresults=0x7f34ac7d9dcc) at ldo.c:822 9 0x00007f34adfe17ec in ?? () 10 0x00007f34a5a61a40 in ?? () 11 0x00007f34a5a1d428 in ?? () 12 0x0000000000000001 in ?? () 13 0x0000000000000000 in ?? ()

    1. 第二次crash, gdb调试结果如下:

    Program terminated with signal 7, Bus error. 0 0x00007f6aca24afe7 in OPENSSL_sk_dup () from /lib64/libcrypto.so.1.1 Missing separate debuginfos, use: debuginfo-install glibc-2.17-326.el7_9.x86_64 libgcc-4.8.5-44.el7.x86_64 libuuid-2.23.2-65.el7_9.1.x86_64 openssl11-libs-1.1.1k-4.el7.x86_64 zlib-1.2.7-20.el7_9.x86_64 (gdb) bt 0 0x00007f6aca24afe7 in OPENSSL_sk_dup () from /lib64/libcrypto.so.1.1 1 0x00007f6aca582838 in SSL_new () from /lib64/libssl.so.1.1 2 0x00007f6aca7d8994 in ?? () 3 0x00007f6ac7bcebf8 in ?? () 4 0x00007f6ac81c2a88 in ?? () 5 0x00007f6ac7bcebf8 in ?? () 6 0x00007f6aca7d8c72 in ?? () 7 0x0000000000000000 in ?? ()

    opened by RiceCN 14
  • 偶现内存问题

    偶现内存问题

    线上新项目玩家下线后agent出现内存泄漏,稳定4k。精简服务到比较小之后情况变为偶发。 直接拿最新版本skynet默认的agent来测试发现也会偶现(如下01000036、0100003e等服务),当然概率比我的环境小很多。修改examples/main.lua仅增加启动100个agent服务并立即关闭。

    local skynet = require "skynet"
    local sprotoloader = require "sprotoloader"
    
    local max_client = 64
    
    skynet.start(function()
    	skynet.error("Server start")
    	skynet.uniqueservice("protoloader")
    	if not skynet.getenv "daemon" then
    		local console = skynet.newservice("console")
    	end
    	skynet.newservice("debug_console",8000)
    	skynet.newservice("simpledb")
    	local watchdog = skynet.newservice("watchdog")
    	skynet.call(watchdog, "lua", "start", {
    		port = 8888,
    		maxclient = max_client,
    		nodelay = true,
    	})
    	skynet.error("Watchdog listen on", 8888)
    	for i = 1, 100 do
    		local agent = skynet.newservice("agent")
    		skynet.send(agent, "debug", "EXIT")
    	end
    	skynet.exit()
    end)
    

    debug_console查看c内存如下:

    bash-4.1# telnet 127.0.0.1 8000
    Trying 127.0.0.1...
    Connected to 127.0.0.1.
    Escape character is '^]'.
    Welcome to skynet console
    cmem
    :01000002	213920
    :01000003	47600
    :01000004	64240
    :01000005	95344
    :01000006	144
    :01000007	15488
    :01000008	76704
    :01000009	104848
    :0100000a	19344
    :0100000b	12048
    :0100000c	137360
    :0100000d	12800
    :0100000e	15712
    :0100000f	40352
    :01000010	21056
    :0100001f	64
    :01000036	64
    :0100003e	64
    :01000078	64
    :0100009c	64
    :fffffffe	32
    :ffffffff	12618368
    block	7675
    total	13496640
    <CMD OK>
    

    根据 https://github.com/cloudwu/skynet/issues/323 中云大指导的方案我在如下函数中增加调试输出,比对结果看着仿佛没有异常

    // hook : malloc, realloc, free, calloc
    
    void *
    skynet_malloc(size_t size) {
    	void* ptr = je_malloc(size + PREFIX_SIZE);
    	if(!ptr) malloc_oom(size);
    	uint32_t handle = skynet_current_handle();
    	fprintf(stderr, "malloc [:%08x] %p %ld\n", handle, ptr, size);
    	return fill_prefix(ptr);
    }
    
    void *
    skynet_realloc(void *ptr, size_t size) {
    	if (ptr == NULL) return skynet_malloc(size);
    
    	void* rawptr = clean_prefix(ptr);
    	void *newptr = je_realloc(rawptr, size+PREFIX_SIZE);
    	uint32_t handle = skynet_current_handle();
    	fprintf(stderr, "realloc [:%08x] %p %ld\n", handle, newptr, size);
    	if(!newptr) malloc_oom(size);
    	return fill_prefix(newptr);
    }
    
    void
    skynet_free(void *ptr) {
    	if (ptr == NULL) return;
    	void* rawptr = clean_prefix(ptr);
    	uint32_t handle = skynet_current_handle();
    	fprintf(stderr, "free [:%08x] %p\n", handle, rawptr);
    	je_free(rawptr);
    }
    
    void *
    skynet_calloc(size_t nmemb,size_t size) {
    	void* ptr = je_calloc(nmemb + ((PREFIX_SIZE+size-1)/size), size );
    	uint32_t handle = skynet_current_handle();
    	fprintf(stderr, "calloc [:%08x] %p %ld\n", handle, ptr, size);
    	if(!ptr) malloc_oom(size);
    	return fill_prefix(ptr);
    }
    

    贴了其中一个有内存问题服务日志,请查阅 https://gist.github.com/JieTrancender/b699b372e7137295ca7a7e846fefb1e2

    opened by JieTrancender 4
  • cluster 集群组网

    cluster 集群组网

    云大侠,我在某业务场景中需要实现 cluster 组网 skynet 进程都是等价的slave(不是使用master-slave模式) 目前cluser的配置只能声明

        nodename = "nodeaddress"
    

    我期望的输入方式

        slave = {
            "address",
            "address"
        }
    

    loadconfig中config已经规定了cluser的配置格式

        for name,address in pairs(tmp) do
            if name:sub(1,2) == "__" then
                name = name:sub(3)
                config[name] = address
                skynet.error(string.format("Config %s = %s", name, address))
            else
                assert(address == false or type(address) == "string")
                if node_address[name] ~= address then
                    -- address changed
                    if node_sender[name] then
                        -- reset connection if node_sender[name] exist
                        node_channel[name] = nil 
                        table.insert(reload, name)
                    end 
                    node_address[name] = address
                end 
                local ct = connecting[name]
                if ct and ct.namequery and not config.nowaiting then
                    skynet.error(string.format("Cluster node [%s] resloved : %s", name, address))
                    skynet.wakeup(ct.namequery)
                end 
            end 
        end 
    

    #Question: 我想问的是: 业务层不关心目标node在哪的情况下

    可以对cluster进行扩展 支持 array吗?

    还是自行将cluster包装一次 在wrapper中调度cluster (wrapper 中可以实现load level) ,例如: wrapper.lua:

    local config = {
    	slave = {
    		"slave1",	--cluster config key
    		"slave2"
    	}
    }
    
    local wrapper = {}
    
    function wrapper.call(name, ...)
    	local slave = assert(config[name], name)
    	local name = slave[math.random(1, #slave)] --load level
    	cluserd.call(name, ...)
    end
    
    wrapper.call( slave,  ...)
    

    这样就存在一个问题 cluster配置会变得臃肿 name将变成一个无意义的key cluser

        slave1 = "address"
        slave2 = "address"
    
    opened by fanyh 24
Releases(v1.5.0)
Owner
云风
coder ( c , lua , open source )
云风
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