zavier-wong / acid Goto Github PK

我是ubuntu系统，更新了g++-11。
在cmake中设置 '-std=c++20' ，make时会报错
c++: error: unrecognized command line option ‘-std=c++20’; did you mean ‘-std=c++2a’?
如果改为 '-std=c++2a' 又会报
fatal error: concepts: No such file or directory

希望更详细地说明一下项目中c++20如何通过编译，谢谢！

直接把负载均衡模块做个客户端，是不是不太妥当？按道理，负载均衡对于客户端来说，应该是无感知的，是不是可以把负载均衡单独出来一个服务？

对于makefile这块不是很熟悉，感觉看着好乱，望大佬提供点思路^^

这里m_loggers类型是mapstd::string,Logger::ptr，但我看具体实现好像对key的排序没啥要求，如果只是单纯哈希的话，是不是unordered_map会更好一点，毕竟map底层是红黑树，一次查询的复杂度是O(logN)级别的，而unordered_map是O(1)

系统: Ubuntu20.04 LTS
按照安装文档，升了gcc g++ 也安装了yaml-cpp，这是什么原因？求解决

[ 39%] Linking CXX executable ../../bin/test/test_log
cd /home/w/Workspace/CpperDay/C++/项目/acid/build/tests && /usr/bin/cmake -E cmake_link_script CMakeFiles/test_log.dir/link.txt --verbose=1
/usr/bin/g++-11   -rdynamic  -std=c++20  -Wall -Werror -Wno-deprecated -Wno-unused-function    CMakeFiles/test_log.dir/test_log.cpp.o  -o ../../bin/test/test_log   -L/home/w/Workspace/CpperDay/C++/项目/acid/lib  -Wl,-rpath,/home/w/Workspace/CpperDay/C++/项目/acid/lib ../../lib/libacid.so -lpthread -lyaml-cpp -ldl 
/usr/bin/ld: ../../lib/libacid.so: undefined reference to `YAML::detail::node::m_amount'
/usr/bin/ld: ../../lib/libacid.so: undefined reference to `YAML::detail::node_data::empty_scalar[abi:cxx11]()'
/usr/bin/ld: ../../lib/libacid.so: undefined reference to `YAML::detail::node_data::push_back(YAML::detail::node&, std::shared_ptr<YAML::detail::memory_holder> const&)'
/usr/bin/ld: ../../lib/libacid.so: undefined reference to `YAML::detail::node_data::convert_to_map(std::shared_ptr<YAML::detail::memory_holder> const&)'
collect2: error: ld returned 1 exit status
make[2]: *** [tests/CMakeFiles/test_log.dir/build.make:88: ../bin/test/test_log] Error 1
make[2]: Leaving directory '/home/w/Workspace/CpperDay/C++/项目/acid/build'
make[1]: *** [CMakeFiles/Makefile2:228: tests/CMakeFiles/test_log.dir/all] Error 2
make[1]: Leaving directory '/home/w/Workspace/CpperDay/C++/项目/acid/build'
make: *** [Makefile:87: all] Error 2

嗨！ 你好，看了这个repo感觉受益匪浅！
有问题想请教一下， 按照我的理解，这个repo里的协程似乎并没有使用C++ 20 里的标准， 而是通过定义Fiber类自己实现了一套协程？

想在服务端实现负载均衡是怎么样的一个思路，老哥能给个想法吗。

运行环境

Ubuntu 21.10

IDE

Clion-2021.1.3

问题

2022-04-08 23:46:57	[ DEBUG	]	[root]	20761	main	0		tests/test_scheduler.cpp:70	main
2022-04-08 23:46:57	[ INFO	]	[system]	20761	main	0		source/scheduler.cpp:144	notify
2022-04-08 23:46:57	[ DEBUG	]	[root]	20764	test_2	2		tests/test_scheduler.cpp:64	Im fiber 1
2022-04-08 23:46:57	[ ERROR	]	[root]	20761	main	0		source/scheduler.cpp:21	ASSERTION: m_stop
backtrace:
    /home/titto/CProjects/acid-main/bin/test/test_scheduler(_ZN4acid9SchedulerD1Ev+0x236) [0x55b92b1cd5f4]
    /home/titto/CProjects/acid-main/bin/test/test_scheduler(main+0x206) [0x55b92b1678ec]
    /lib/x86_64-linux-gnu/libc.so.6(+0x29fd0) [0x7f11eaa4cfd0]
    /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x7d) [0x7f11eaa4d07d]
    /home/titto/CProjects/acid-main/bin/test/test_scheduler(_start+0x25) [0x55b92b1662c5]

2022-04-08 23:46:57	[ INFO	]	[system]	20763	test_1	3		source/scheduler.cpp:149	idle
test_scheduler: source/scheduler.cpp:21: virtual acid::Scheduler::~Scheduler(): Assertion `m_stop' failed.

Process finished with exit code 134 (interrupted by signal 6: SIGABRT)

你好，首先我觉得写的挺好的，我有个问题，这个http支持http2.0嘛 ，因为rpc是一对一的，我之前用过rpc是支持http2.0 的，然后它社区也有对应协成的一些仓库，如果这边可以改善是个很好的点 我也试着学习修改

请问这个库是什么情况呢，本人是刚入门的小白，望大佬不吝赐教^^

使用Ubuntu22.04 g++10.3编译失败

报错信息：
macro "__has_attribute" requires an identifier 304 | #if __GNUC_PREREQ (2,5) || __glibc_has_attribute (__const__)

您好！每次打开第三个集群都会出现倒数两行关于entry冲突的日志；另外任期一直在不断增长，在稳定的raft流程中似乎不会出现这种情况？期待您对这两个问题出现的原因及如何解决的答复，感谢您！
xxx@ubuntu:~/acid/example/build/kvhttp$ ./kvhttp_server 3
[2023-04-21 13:11:26.564] [acid] [info] [util.cpp:13] ENABLE_DEBUGGER
[2023-04-21 13:11:26.564] [info] [kvhttp_server.cpp:58] argv[1] = 3
[2023-04-21 13:11:26.564] [acid] [info] [persister.cpp:20] Persist path : /home/xxx/acid/example/build/kvhttp/kvhttp-3
[2023-04-21 13:11:26.565] [acid] [debug] [raft_node.cpp:492] Node[3] add peer[1], address is 127.0.0.1:7001
[2023-04-21 13:11:26.565] [acid] [debug] [raft_node.cpp:492] Node[3] add peer[2], address is 127.0.0.1:7002
[2023-04-21 13:11:26.565] [acid] [info] [tcp_server.cpp:51] server Raft-Node[3] bind [socket sock=3 isConnected=0 family=2 type=1 protocol=0 localAddress=127.0.0.1:7003] success
[2023-04-21 13:11:26.565] [acid] [info] [tcp_server.cpp:51] server acid/1.0.0 bind [socket sock=4 isConnected=0 family=2 type=1 protocol=0 localAddress=127.0.0.1:10003] success
[2023-04-21 13:11:26.565] [acid] [info] [raft_node.cpp:98] initialize from state persisted before a crash, term 162, vote -1, commit 2
[2023-04-21 13:11:26.566] [acid] [debug] [kvserver.cpp:132] Node[3] tries to apply message type: Entry, index: 1, term: 94, data size: 0
[2023-04-21 13:11:26.566] [acid] [debug] [kvserver.cpp:132] Node[3] tries to apply message type: Entry, index: 2, term: 95, data size: 0
[2023-04-21 13:11:26.566] [acid] [debug] [raft_node.cpp:175] Node[3] applies entries 0-2 in term 162
[2023-04-21 13:11:26.775] [acid] [debug] [rpc_server.cpp:118] handleClient: [socket sock=6 isConnected=1 family=2 type=1 protocol=0 localAddress=127.0.0.1:7003 remoteAddress=127.0.0.1:55704]
[2023-04-21 13:11:26.775] [acid] [critical] [raft_log.cpp:91] found conflict at index 2 [existing term: 95, conflicting term: 99]
[2023-04-21 13:11:26.775] [acid] [critical] [raft_log.cpp:39] entry 2 conflict with committed entry [committed(2)]

我在test_fiber里运行test1例子，出现了stack smashing detected ****

2022-11-17 11:52:56 [ INFO ] [root] 6918 main 0 source/http/parse.cpp:400 lookup name=raft.timer.election.top already exist 2022-11-17 11:52:56 [ INFO ] [root] 6919 main_0 2 tests/test_fiber.cpp:21 begin 2022-11-17 11:52:56 [ INFO ] [root] 6919 main_0 5 tests/test_fiber.cpp:13 run_in_fiber begin 2022-11-17 11:52:56 [ INFO ] [root] 6919 main_0 0 tests/test_fiber.cpp:24 after swap in 2022-11-17 11:52:56 [ INFO ] [root] 6919 main_0 5 tests/test_fiber.cpp:15 run_in_fiber end 2022-11-17 11:52:56 [ INFO ] [root] 6919 main_0 0 tests/test_fiber.cpp:26 end *** stack smashing detected ***: terminated [1] 6918 abort ./test_fiber

请问是什么原因呢？