git pull git push长时间无响应很慢_git push缓慢

# 现象

1、浏览器可以访问 gitlab 页面。一直正常。

2、在 IDEA 和 git bash 窗口中执行所有远程操作（git pull git push ）都很慢，得等个好几分钟才有反应。偶尔正常不用等待。

# 排查

STEP1  在git bash 窗口中执行 GIT_TRACE=2  GIT_CURL_VERBOSE=2 git pull 可以追踪整个执行链路，发现卡在了链接服务器上， Trying 错误IP，这个IP不是我gitlab的服务地址

18:43:08.966375 exec-cmd.c:237          trace: resolved executable dir: D:/tools/Git/mingw64/bin
18:43:08.972462 git.c:460               trace: built-in: git pull
18:43:08.973967 run-command.c:655       trace: run_command: git fetch --update-head-ok
18:43:08.986495 exec-cmd.c:237          trace: resolved executable dir: D:/tools/Git/mingw64/libexec/git-core
18:43:08.992495 git.c:460               trace: built-in: git fetch --update-head-ok
18:43:08.997015 run-command.c:655       trace: run_command: GIT_DIR=.git git remote-http origin xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
18:43:09.008530 exec-cmd.c:237          trace: resolved executable dir: D:/tools/Git/mingw64/libexec/git-core
18:43:09.014040 git.c:750               trace: exec: git-remote-http origin xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
18:43:09.014040 run-command.c:655       trace: run_command: git-remote-http origin xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
18:43:09.026075 exec-cmd.c:237          trace: resolved executable dir: D:/tools/Git/mingw64/libexec/git-core
18:43:09.034585 http.c:724              == Info: Couldn't find host xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx in the (nil) file; using defaults
18:43:09.040597 http.c:724              == Info:   Trying 错误IP:80...

# 解决方式

方案1：host配置正确的IP到gitlab地址

方案2：配置网络DNS 8.8.8.8

# 原因分析

迁库地址已变。

但究其原理，为什么时而好时而不好？为什么等几分钟try fail之后后来try的IP是正确的？未知。欢迎技术大佬留言解惑。