nginx Binary熱更新
阿新 • • 發佈：2017-08-15
nginx
1、更新Binary
# cp /usr/loca/nginx/sbin/nginx /usr/loca/nginx/sbin/nginxbak //備份 # cp /usr/local/nginx-12.1/sbin/nginx/ /usr/loca/sbin/nginx //跟新新文件
2、給原來的nginx master進程發送USR2信號
# kill -USR2 `cat /var/run/nginx.pid`
2.1此時會生成兩個nginx 的master進程及其work進程
# ps aux | grep nginx root 20650 1.0 0.1 1336856 22536 ? S 11:29 0:00 nginx: master process /usr/local/nginx/sbin/nginx nobody 20655 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20656 0.0 0.3 1378468 54412 ? S 11:29 0:00 nginx: worker process nobody 20657 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20658 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20659 0.0 0.0 1336856 12168 ? S 11:29 0:00 nginx: cache manager process nobody 20660 0.0 0.0 1336856 12048 ? S 11:29 0:00 nginx: cache loader process root 22250 0.0 0.1 1336856 22540 ? S 11:10 0:00 nginx: master process /usr/local/nginx/sbin/nginx nobody 22251 0.0 0.3 1378272 53356 ? S 11:10 0:00 nginx: worker process nobody 22252 0.0 0.3 1378568 54728 ? S 11:10 0:00 nginx: worker process nobody 22254 0.0 0.3 1378468 54416 ? S 11:10 0:00 nginx: worker process nobody 22255 0.0 0.3 1378272 53356 ? S 11:10 0:00 nginx: worker process nobody 22256 0.0 0.0 1336856 12172 ? S 11:10 0:00 nginx: cache manager process
3、給原來的nginx 的master進程發送WINCH信號，執行步驟二之後，老的nginx進程會在/var/run/生成一個舊的pid文件，為：/var/run/nginx.pid.oldbin
# kill -WINCH `cat /var/run/nginx.pid.oldbin`
3.1此時舊nginx的work進行已不存在
# ps aux | grep nginx hujingfu 1324 0.0 0.0 103304 848 pts/101 S+ 11:30 0:00 grep nginx root 20650 0.2 0.1 1336856 22536 ? S 11:29 0:00 nginx: master process /usr/local/nginx/sbin/nginx nobody 20655 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20656 0.0 0.3 1378468 54412 ? S 11:29 0:00 nginx: worker process nobody 20657 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20658 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20659 0.0 0.0 1336856 12168 ? S 11:29 0:00 nginx: cache manager process nobody 20660 0.0 0.0 1336856 12048 ? S 11:29 0:00 nginx: cache loader process root 22250 0.0 0.1 1336856 22540 ? S 11:10 0:00 nginx: master process /usr/local/nginx/sbin/nginx
4、給舊nginx 的master進行發送QUIT信號，讓其推出
# kill -QUIT `cat /var/run/nginx.pid.oldbin`
4.1 此時舊的nginx所有進程都已推出，新的nginx已經生效，nginx 熱跟新Binary 完成
# ps aux | grep nginx hujingfu 1502 0.0 0.0 103304 844 pts/101 S+ 11:30 0:00 grep nginx root 20650 0.1 0.1 1336856 22536 ? S 11:29 0:00 nginx: master process /usr/local/nginx/sbin/nginx nobody 20655 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20656 0.0 0.3 1378468 54412 ? S 11:29 0:00 nginx: worker process nobody 20657 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20658 0.0 0.3 1378272 53352 ? S 11:29 0:00 nginx: worker process nobody 20659 0.0 0.0 1336856 12168 ? S 11:29 0:00 nginx: cache manager process nobody 20660 0.0 0.0 1336856 12048 ? S 11:29 0:00 nginx: cache loader process
參考鏈接：
http://www.cnblogs.com/sayou/p/3711918.html
http://blog.csdn.net/huzelin1008/article/details/43193991
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nginx Binary熱更新