Fixing this "couldn't get 'max filedescriptors'" error

After installing some packages on my Debian VPS, I couldn't reboot my webservice (lighttpd). This error kept appearing: 2018-04-12 19:34:00: (server.c.1201) couldn't get 'max filedescriptors' Function not implemented After searching the interwebz I could not find a proper fix. A solution seemed nowhere to be found, so I just downloaded lighttpd and statically set the max filedescriptor like this in server.c: srv->max_fds = 1024 //rlim.rlim_cur; Just comment out all the surrounding code, and it works! I hope this helps others.

For clearance, here is the source code I commented out:

1189 if (0 != getrlimit(RLIMIT_NOFILE, &rlim)) { 1190 log_error_write(srv, __FILE__, __LINE__, 1191 "ss", "couldn't get 'max filedescriptors'", 1192 strerror(errno)); 1193 return -1; 1194 } 1195 1196 /** 1197 * if we are not root can can't increase the fd-limit above rlim_max, but we can reduce it 1198 */ 1199 if (use_rlimit && srv->srvconf.max_fds 1200 && (i_am_root || srv->srvconf.max_fds <= rlim.rlim_max)) { 1201 /* set rlimits */ 1202 1203 rlim.rlim_cur = srv->srvconf.max_fds; 1204 if (i_am_root) rlim.rlim_max = srv->srvconf.max_fds; 1205 1206 if (0 != setrlimit(RLIMIT_NOFILE, &rlim)) { 1207 log_error_write(srv, __FILE__, __LINE__, 1208 "ss", "couldn't set 'max filedescriptors'", 1209 strerror(errno)); 1210 return -1; 1211 } 1212 } 1213 1214 srv->max_fds = rlim.rlim_cur; 1215 /*(default upper limit of 4k if server.max-fds not specified)*/ 1216 if (i_am_root && 0 == srv->srvconf.max_fds && rlim.rlim_cur > 4096) 1217 srv->max_fds = 4096; 1218 1219 /* set core file rlimit, if enable_cores is set */ 1220 if (use_rlimit && srv->srvconf.enable_cores && getrlimit(RLIMIT_CORE, &rlim) == 0) { 1221 rlim.rlim_cur = rlim.rlim_max; 1222 setrlimit(RLIMIT_CORE, &rlim); 1223 }

April, 2018