id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
2417	nginx temp file Directory permissions change	yjlr.jia@…		"when I start nginx use “ultiamtech” user，

[ultimatech@activemq nginx]$ pwd
/usr/local/nginx
[ultimatech@activemq nginx]$ ls -lt
总用量 4
drwxr-xr-x 2 ultimatech ultimatech 333 11月 23 10:32 conf
drwxr-xr-x 2 ultimatech ultimatech  58 11月 23 10:28 logs
drwxr-xr-x 2 ultimatech ultimatech  32 11月 23 10:28 sbin
-rw-rw-r-- 1 ultimatech ultimatech 307 11月 23 09:56 1.txt
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 client_body_temp
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 fastcgi_temp
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 proxy_temp
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 scgi_temp
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 uwsgi_temp
drwxr-xr-x 2 ultimatech ultimatech  40 11月 22 18:40 html
[ultimatech@activemq nginx]$ sbin/nginx  -v
nginx version: nginx/1.22.1
[ultimatech@activemq nginx]$ 
[ultimatech@activemq nginx]$ sbin/nginx
[ultimatech@activemq nginx]$ ps -ef|grep nginx
ultimat+  54881      1  0 10:58 ?        00:00:00 nginx: master process sbin/nginx
ultimat+  54882  54881  0 10:58 ?        00:00:00 nginx: worker process
ultimat+  54885  54608  0 10:59 pts/2    00:00:00 grep --color=auto nginx

we find the directory *_temp  owner is : ultiamtech 
but when we use ""root"" user ,exec command: ""nginx -t"" , the file directory *_temp : owner change ,directory owner is : nobody ,like this:
[root@activemq nginx]# pwd
/usr/local/nginx
[root@activemq nginx]# ls -lt
总用量 4
drwxr-xr-x 2 ultimatech ultimatech  58 11月 23 10:58 logs
drwxr-xr-x 2 ultimatech ultimatech 333 11月 23 10:58 conf
drwxr-xr-x 2 ultimatech ultimatech  32 11月 23 10:28 sbin
-rw-rw-r-- 1 ultimatech ultimatech 307 11月 23 09:56 1.txt
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 client_body_temp
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 fastcgi_temp
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 proxy_temp
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 scgi_temp
drwx------ 2 ultimatech ultimatech   6 11月 22 18:40 uwsgi_temp
drwxr-xr-x 2 ultimatech ultimatech  40 11月 22 18:40 html
[root@activemq nginx]# sbin/nginx  -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[root@activemq nginx]# ls -lt
总用量 4
drwxr-xr-x 2 ultimatech ultimatech  58 11月 23 10:58 logs
drwxr-xr-x 2 ultimatech ultimatech 333 11月 23 10:58 conf
drwxr-xr-x 2 ultimatech ultimatech  32 11月 23 10:28 sbin
-rw-rw-r-- 1 ultimatech ultimatech 307 11月 23 09:56 1.txt
drwx------ 2 nobody     ultimatech   6 11月 22 18:40 client_body_temp
drwx------ 2 nobody     ultimatech   6 11月 22 18:40 fastcgi_temp
drwx------ 2 nobody     ultimatech   6 11月 22 18:40 proxy_temp
drwx------ 2 nobody     ultimatech   6 11月 22 18:40 scgi_temp
drwx------ 2 nobody     ultimatech   6 11月 22 18:40 uwsgi_temp
drwxr-xr-x 2 ultimatech ultimatech  40 11月 22 18:40 html


I  find the souce code :
ngx_file.c 
ngx_int_t
ngx_create_paths(ngx_cycle_t *cycle, ngx_uid_t user){

        if (user == (ngx_uid_t) NGX_CONF_UNSET_UINT) {
            ngx_log_stderr(0, ""nginx create paths  start  continue "");
            continue;
        }

        if (fi.st_uid != user) {  // user  config define user   :  start user: ultimatech  ,default :nobody
            if (chown((const char *) path[i]->name.data, user, -1) == -1) {
                ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno,
                              ""chown(\""%s\"", %d) failed"",
                              path[i]->name.data, user);
                return NGX_ERROR;
            }
        }
}

Why is there a  ""chown"" operation? the  chown() function cat be remove???
"	defect	closed	major		nginx-core	1.20.x	invalid		yjlr.jia@…	Linux activemq 5.4.109-1.el7.elrepo.x86_64 #1 SMP Mon Mar 29 10:03:34 EDT 2021 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.20.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC) 
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx1.20 --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module"