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Code Issues Releases Wiki Activity

Config: Refine ulimit check.

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This commit is contained in:
winlin 2022-08-22 19:46:47 +08:00
parent 9b010ac158
commit 2438bc99e0
1 changed files with 10 additions and 36 deletions
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42
trunk/src/app/srs_app_config.cpp
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@ -2830,43 +2830,17 @@ srs_error_t SrsConfig::check_number_connections()
////////////////////////////////////////////////////////////////////////
// check max connections
////////////////////////////////////////////////////////////////////////
if (get_max_connections() <= 0) {
return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "max_connections=%d is invalid", get_max_connections());
int nb_connections = get_max_connections();
if (nb_connections <= 0) {
return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "max_connections=%d is invalid", nb_connections);
}
// check max connections of system limits
if (true) {
int nb_consumed_fds = (int)get_listens().size();
if (!get_http_api_listen().empty()) {
nb_consumed_fds++;
}
if (!get_http_stream_listen().empty()) {
nb_consumed_fds++;
}
if (get_log_tank_file()) {
nb_consumed_fds++;
}
// 0, 1, 2 for stdin, stdout and stderr.
nb_consumed_fds += 3;
int nb_connections = get_max_connections();
int nb_total = nb_connections + nb_consumed_fds;
int max_open_files = (int)sysconf(_SC_OPEN_MAX);
int nb_canbe = max_open_files - nb_consumed_fds - 1;
// for each play connections, we open a pipe(2fds) to convert SrsConsumver to io,
if (nb_total >= max_open_files) {
srs_error("invalid max_connections=%d, required=%d, system limit to %d, "
"total=%d(max_connections=%d, nb_consumed_fds=%d). "
"you can change max_connections from %d to %d, or "
"you can login as root and set the limit: ulimit -HSn %d",
nb_connections, nb_total + 100, max_open_files,
nb_total, nb_connections, nb_consumed_fds,
nb_connections, nb_canbe, nb_total + 100);
return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "%d exceed max open files=%d",
nb_total, max_open_files);
}
int nb_total = nb_connections + 128; // Simple reserved some fds.
int max_open_files = (int)sysconf(_SC_OPEN_MAX);
if (nb_total >= max_open_files) {
srs_error("max_connections=%d, system limit to %d, please run: ulimit -HSn %d", nb_connections, max_open_files, srs_max(10000, nb_connections * 10));
return srs_error_new(ERROR_SYSTEM_CONFIG_INVALID, "%d exceed max open files=%d", nb_total, max_open_files);
}
return err;