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Add support for listen(2) backlog definition

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In high RPS environments, the default listen backlog is not sufficient, so
giving users the power to configure it is the right approach, especially
since it requires only minor modifications to the code.
This commit is contained in:
Nenad Merdanovic
2013-11-08 20:55:48 +01:00
committed by antirez
parent f0652c37a5
commit 8dda9dbef0
6 changed files with 31 additions and 21 deletions
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7
src/config.c
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@ -125,6 +125,11 @@ void loadServerConfigFromString(char *config) {
if (server.port < 0 || server.port > 65535) {
err = "Invalid port"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"backlog") && argc == 2) {
server.backlog = atoi(argv[1]);
if (server.backlog < 0) {
err = "Invalid backlog value"; goto loaderr;
}
} else if (!strcasecmp(argv[0],"bind") && argc >= 2) {
int j, addresses = argc-1;
@ -935,6 +940,7 @@ void configGetCommand(redisClient *c) {
config_get_numerical_field("slowlog-max-len",
server.slowlog_max_len);
config_get_numerical_field("port",server.port);
config_get_numerical_field("backlog",server.backlog);
config_get_numerical_field("databases",server.dbnum);
config_get_numerical_field("repl-ping-slave-period",server.repl_ping_slave_period);
config_get_numerical_field("repl-timeout",server.repl_timeout);
@ -1652,6 +1658,7 @@ int rewriteConfig(char *path) {
rewriteConfigYesNoOption(state,"daemonize",server.daemonize,0);
rewriteConfigStringOption(state,"pidfile",server.pidfile,REDIS_DEFAULT_PID_FILE);
rewriteConfigNumericalOption(state,"port",server.port,REDIS_SERVERPORT);
rewriteConfigNumericalOption(state,"backlog",server.backlog,REDIS_BACKLOG);
rewriteConfigBindOption(state);
rewriteConfigStringOption(state,"unixsocket",server.unixsocket,NULL);
rewriteConfigOctalOption(state,"unixsocketperm",server.unixsocketperm,REDIS_DEFAULT_UNIX_SOCKET_PERM);