X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/15ef6053404686995024adb373854a009a3d2d39..8996bf77204b6084796608ebad3b1688212d8bfc:/src/redis.c diff --git a/src/redis.c b/src/redis.c index 94daf348..a7d8254b 100644 --- a/src/redis.c +++ b/src/redis.c @@ -207,14 +207,16 @@ struct redisCommand redisCommandTable[] = { {"watch",watchCommand,-2,"rs",0,noPreloadGetKeys,1,-1,1,0,0}, {"unwatch",unwatchCommand,1,"rs",0,NULL,0,0,0,0,0}, {"cluster",clusterCommand,-2,"ar",0,NULL,0,0,0,0,0}, - {"restore",restoreCommand,4,"awm",0,NULL,0,0,0,0,0}, + {"restore",restoreCommand,4,"awm",0,NULL,1,1,1,0,0}, {"migrate",migrateCommand,6,"aw",0,NULL,0,0,0,0,0}, + {"asking",askingCommand,1,"r",0,NULL,0,0,0,0,0}, {"dump",dumpCommand,2,"ar",0,NULL,0,0,0,0,0}, {"object",objectCommand,-2,"r",0,NULL,0,0,0,0,0}, {"client",clientCommand,-2,"ar",0,NULL,0,0,0,0,0}, {"eval",evalCommand,-3,"wms",0,zunionInterGetKeys,0,0,0,0,0}, {"evalsha",evalShaCommand,-3,"wms",0,zunionInterGetKeys,0,0,0,0,0}, - {"slowlog",slowlogCommand,-2,"r",0,NULL,0,0,0,0,0} + {"slowlog",slowlogCommand,-2,"r",0,NULL,0,0,0,0,0}, + {"script",scriptCommand,-2,"ras",0,NULL,0,0,0,0,0} }; /*============================ Utility functions ============================ */ @@ -791,6 +793,8 @@ void createSharedObjects(void) { "-NOSCRIPT No matching script. Please use EVAL.\r\n")); shared.loadingerr = createObject(REDIS_STRING,sdsnew( "-LOADING Redis is loading the dataset in memory\r\n")); + shared.slowscripterr = createObject(REDIS_STRING,sdsnew( + "-BUSY Redis is busy running a script. Please wait or stop the server with SHUTDOWN.\r\n")); shared.space = createObject(REDIS_STRING,sdsnew(" ")); shared.colon = createObject(REDIS_STRING,sdsnew(":")); shared.plus = createObject(REDIS_STRING,sdsnew("+")); @@ -822,6 +826,7 @@ void initServerConfig() { server.port = REDIS_SERVERPORT; server.bindaddr = NULL; server.unixsocket = NULL; + server.unixsocketperm = 0; server.ipfd = -1; server.sofd = -1; server.dbnum = REDIS_DEFAULT_DBNUM; @@ -851,7 +856,7 @@ void initServerConfig() { server.requirepass = NULL; server.rdbcompression = 1; server.activerehashing = 1; - server.maxclients = 0; + server.maxclients = REDIS_MAX_CLIENTS; server.bpop_blocked_clients = 0; server.maxmemory = 0; server.maxmemory_policy = REDIS_MAXMEMORY_VOLATILE_LRU; @@ -864,9 +869,13 @@ void initServerConfig() { server.zset_max_ziplist_entries = REDIS_ZSET_MAX_ZIPLIST_ENTRIES; server.zset_max_ziplist_value = REDIS_ZSET_MAX_ZIPLIST_VALUE; server.shutdown_asap = 0; + server.repl_ping_slave_period = REDIS_REPL_PING_SLAVE_PERIOD; + server.repl_timeout = REDIS_REPL_TIMEOUT; server.cluster_enabled = 0; server.cluster.configfile = zstrdup("nodes.conf"); server.lua_time_limit = REDIS_LUA_TIME_LIMIT; + server.lua_client = NULL; + server.lua_timedout = 0; updateLRUClock(); resetServerSaveParams(); @@ -935,7 +944,7 @@ void initServer() { } if (server.unixsocket != NULL) { unlink(server.unixsocket); /* don't care if this fails */ - server.sofd = anetUnixServer(server.neterr,server.unixsocket); + server.sofd = anetUnixServer(server.neterr,server.unixsocket,server.unixsocketperm); if (server.sofd == ANET_ERR) { redisLog(REDIS_WARNING, "Opening socket: %s", server.neterr); exit(1); @@ -993,6 +1002,39 @@ void initServer() { slowlogInit(); bioInit(); srand(time(NULL)^getpid()); + + /* Try to raise the max number of open files accordingly to the + * configured max number of clients. Also account for 32 additional + * file descriptors as we need a few more for persistence, listening + * sockets, log files and so forth. */ + { + rlim_t maxfiles = server.maxclients+32; + struct rlimit limit; + + if (maxfiles < 1024) maxfiles = 1024; + if (getrlimit(RLIMIT_NOFILE,&limit) == -1) { + redisLog(REDIS_WARNING,"Unable to obtain the current NOFILE limit (%s), assuming 1024 and setting the max clients configuration accordingly.", + strerror(errno)); + server.maxclients = 1024-32; + } else { + rlim_t oldlimit = limit.rlim_cur; + + /* Set the max number of files if the current limit is not enough + * for our needs. */ + if (oldlimit < maxfiles) { + limit.rlim_cur = maxfiles; + limit.rlim_max = maxfiles; + if (setrlimit(RLIMIT_NOFILE,&limit) == -1) { + server.maxclients = oldlimit-32; + redisLog(REDIS_WARNING,"Unable to set the max number of files limit to %d (%s), setting the max clients configuration to %d.", + (int) maxfiles, strerror(errno), (int) server.maxclients); + } else { + redisLog(REDIS_NOTICE,"Max number of open files set to %d", + (int) maxfiles); + } + } + } + } } /* Populates the Redis Command Table starting from the hard coded list @@ -1179,6 +1221,12 @@ int processCommand(redisClient *c) { return REDIS_OK; } + /* Lua script too slow? */ + if (server.lua_timedout && c->cmd->proc != shutdownCommand) { + addReply(c, shared.slowscripterr); + return REDIS_OK; + } + /* Exec the command */ if (c->flags & REDIS_MULTI && c->cmd->proc != execCommand && c->cmd->proc != discardCommand && @@ -1236,6 +1284,10 @@ int prepareForShutdown() { /* Close the listening sockets. Apparently this allows faster restarts. */ if (server.ipfd != -1) close(server.ipfd); if (server.sofd != -1) close(server.sofd); + if (server.unixsocket) { + redisLog(REDIS_NOTICE,"Removing the unix socket file."); + unlink(server.unixsocket); /* don't care if this fails */ + } redisLog(REDIS_WARNING,"Redis is now ready to exit, bye bye..."); return REDIS_OK; @@ -1244,7 +1296,9 @@ int prepareForShutdown() { /*================================== Commands =============================== */ void authCommand(redisClient *c) { - if (!server.requirepass || !strcmp(c->argv[1]->ptr, server.requirepass)) { + if (!server.requirepass) { + addReplyError(c,"Client sent AUTH, but no password is set"); + } else if (!strcmp(c->argv[1]->ptr, server.requirepass)) { c->authenticated = 1; addReply(c,shared.ok); } else { @@ -1510,10 +1564,10 @@ sds genRedisInfoString(char *section) { "used_cpu_user:%.2f\r\n" "used_cpu_sys_children:%.2f\r\n" "used_cpu_user_children:%.2f\r\n", - (float)self_ru.ru_utime.tv_sec+(float)self_ru.ru_utime.tv_usec/1000000, (float)self_ru.ru_stime.tv_sec+(float)self_ru.ru_stime.tv_usec/1000000, - (float)c_ru.ru_utime.tv_sec+(float)c_ru.ru_utime.tv_usec/1000000, - (float)c_ru.ru_stime.tv_sec+(float)c_ru.ru_stime.tv_usec/1000000); + (float)self_ru.ru_utime.tv_sec+(float)self_ru.ru_utime.tv_usec/1000000, + (float)c_ru.ru_stime.tv_sec+(float)c_ru.ru_stime.tv_usec/1000000, + (float)c_ru.ru_utime.tv_sec+(float)c_ru.ru_utime.tv_usec/1000000); } /* cmdtime */ @@ -1795,8 +1849,13 @@ int main(int argc, char **argv) { if (loadAppendOnlyFile(server.appendfilename) == REDIS_OK) redisLog(REDIS_NOTICE,"DB loaded from append only file: %.3f seconds",(float)(ustime()-start)/1000000); } else { - if (rdbLoad(server.dbfilename) == REDIS_OK) - redisLog(REDIS_NOTICE,"DB loaded from disk: %.3f seconds",(float)(ustime()-start)/1000000); + if (rdbLoad(server.dbfilename) == REDIS_OK) { + redisLog(REDIS_NOTICE,"DB loaded from disk: %.3f seconds", + (float)(ustime()-start)/1000000); + } else if (errno != ENOENT) { + redisLog(REDIS_WARNING,"Fatal error loading the DB. Exiting."); + exit(1); + } } if (server.ipfd > 0) redisLog(REDIS_NOTICE,"The server is now ready to accept connections on port %d", server.port);