GDB - 调试正在运行的进程

以backup为例

怎么调试正在运行的进程

ps -ef | grep dbackup

查看dbackup的pid

root      750103       1  0 15:52 ?        00:00:00 nginx: master process /opt/xxx/bin/dbackup3-nginx -g daemon on; master_process on;
root      750785       1  1 15:52 ?        00:00:03 /opt/xxx/bin/dbackup3-backupd --reactor=dev_poll -f /etc/opt/xxx/backupd/svc.conf.d
root      750846       1  0 15:52 ?        00:00:01 /opt/xxx/bin/dbackup3-licensed --reactor=dev_poll -f /etc/opt/xxx/licensed/svc.conf.d
root      750923       1  0 15:52 ?        00:00:01 /opt/xxx/bin/dbackup3-storaged --reactor=dev_poll -f /etc/opt/xxx/storaged/svc.conf.d
root      751523       1  0 15:53 ?        00:00:00 /opt/xxx/bin/dbackup3-agent -f /etc/opt/xxx/agent/svc.conf.d
root      751765  162212  0 15:56 pts/1    00:00:00 grep --color=auto dbackup

• 750785：该进程是 dbackup3-backupd，它是 dbackup3 系统中的备份进程，负责管理备份任务。–reactor=dev_poll 和 -f 后面的配置文件指定了其运行参数。750785 是这个进程的 PID

调试这个进程

gdb a 750785