* results. For instance SPOP and RANDOMKEY are two random commands.
* S: Sort command output array if called from script, so that the output
* is deterministic.
+ * l: Allow command while loading the database.
+ * t: Allow command while a slave has stale data but is not allowed to
+ * server this data. Normally no command is accepted in this condition
+ * but just a few.
*/
struct redisCommand redisCommandTable[] = {
{"get",getCommand,2,"r",0,NULL,1,1,1,0,0},
{"flushdb",flushdbCommand,1,"w",0,NULL,0,0,0,0,0},
{"flushall",flushallCommand,1,"w",0,NULL,0,0,0,0,0},
{"sort",sortCommand,-2,"wmS",0,NULL,1,1,1,0,0},
- {"info",infoCommand,-1,"r",0,NULL,0,0,0,0,0},
+ {"info",infoCommand,-1,"rlt",0,NULL,0,0,0,0,0},
{"monitor",monitorCommand,1,"ars",0,NULL,0,0,0,0,0},
{"ttl",ttlCommand,2,"r",0,NULL,1,1,1,0,0},
{"pttl",pttlCommand,2,"r",0,NULL,1,1,1,0,0},
{"persist",persistCommand,2,"w",0,NULL,1,1,1,0,0},
- {"slaveof",slaveofCommand,3,"as",0,NULL,0,0,0,0,0},
+ {"slaveof",slaveofCommand,3,"ast",0,NULL,0,0,0,0,0},
{"debug",debugCommand,-2,"as",0,NULL,0,0,0,0,0},
{"config",configCommand,-2,"ar",0,NULL,0,0,0,0,0},
- {"subscribe",subscribeCommand,-2,"rps",0,NULL,0,0,0,0,0},
- {"unsubscribe",unsubscribeCommand,-1,"rps",0,NULL,0,0,0,0,0},
- {"psubscribe",psubscribeCommand,-2,"rps",0,NULL,0,0,0,0,0},
- {"punsubscribe",punsubscribeCommand,-1,"rps",0,NULL,0,0,0,0,0},
- {"publish",publishCommand,3,"pf",0,NULL,0,0,0,0,0},
+ {"subscribe",subscribeCommand,-2,"rpslt",0,NULL,0,0,0,0,0},
+ {"unsubscribe",unsubscribeCommand,-1,"rpslt",0,NULL,0,0,0,0,0},
+ {"psubscribe",psubscribeCommand,-2,"rpslt",0,NULL,0,0,0,0,0},
+ {"punsubscribe",punsubscribeCommand,-1,"rpslt",0,NULL,0,0,0,0,0},
+ {"publish",publishCommand,3,"pflt",0,NULL,0,0,0,0,0},
{"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},
* a macro is used: run_with_period(milliseconds) { .... }
*/
-/* Using the following macro you can run code inside serverCron() with the
- * specified period, specified in milliseconds.
- * The actual resolution depends on REDIS_HZ. */
-#define run_with_period(_ms_) if (!(loops % ((_ms_)/(1000/REDIS_HZ))))
-
int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
- int j, loops = server.cronloops;
+ int j;
REDIS_NOTUSED(eventLoop);
REDIS_NOTUSED(id);
REDIS_NOTUSED(clientData);
}
/* Show information about connected clients */
- run_with_period(5000) {
- redisLog(REDIS_VERBOSE,"%d clients connected (%d slaves), %zu bytes in use",
- listLength(server.clients)-listLength(server.slaves),
- listLength(server.slaves),
- zmalloc_used_memory());
+ if (!server.sentinel_mode) {
+ run_with_period(5000) {
+ redisLog(REDIS_VERBOSE,
+ "%d clients connected (%d slaves), %zu bytes in use",
+ listLength(server.clients)-listLength(server.slaves),
+ listLength(server.slaves),
+ zmalloc_used_memory());
+ }
}
/* We need to do a few operations on clients asynchronously. */
if (server.cluster_enabled) clusterCron();
}
+ /* Run the sentinel timer if we are in sentinel mode. */
+ run_with_period(100) {
+ if (server.sentinel_mode) sentinelTimer();
+ }
+
server.cronloops++;
return 1000/REDIS_HZ;
}
server.aof_last_fsync = time(NULL);
server.aof_rewrite_time_last = -1;
server.aof_rewrite_time_start = -1;
+ server.aof_lastbgrewrite_status = REDIS_OK;
server.aof_delayed_fsync = 0;
server.aof_fd = -1;
server.aof_selected_db = -1; /* Make sure the first time will not match */
case 's': c->flags |= REDIS_CMD_NOSCRIPT; break;
case 'R': c->flags |= REDIS_CMD_RANDOM; break;
case 'S': c->flags |= REDIS_CMD_SORT_FOR_SCRIPT; break;
+ case 'l': c->flags |= REDIS_CMD_LOADING; break;
+ case 't': c->flags |= REDIS_CMD_STALE; break;
default: redisPanic("Unsupported command flag"); break;
}
f++;
return REDIS_OK;
}
- /* Don't accept wirte commands if this is a read only slave. But
+ /* Don't accept write commands if this is a read only slave. But
* accept write commands if this is our master. */
if (server.masterhost && server.repl_slave_ro &&
!(c->flags & REDIS_MASTER) &&
* we are a slave with a broken link with master. */
if (server.masterhost && server.repl_state != REDIS_REPL_CONNECTED &&
server.repl_serve_stale_data == 0 &&
- c->cmd->proc != infoCommand && c->cmd->proc != slaveofCommand)
+ !(c->cmd->flags & REDIS_CMD_STALE))
{
addReply(c, shared.masterdownerr);
return REDIS_OK;
}
- /* Loading DB? Return an error if the command is not INFO */
- if (server.loading && c->cmd->proc != infoCommand) {
+ /* Loading DB? Return an error if the command has not the
+ * REDIS_CMD_LOADING flag. */
+ if (server.loading && !(c->cmd->flags & REDIS_CMD_LOADING)) {
addReply(c, shared.loadingerr);
return REDIS_OK;
}
- /* Lua script too slow? Only allow SHUTDOWN NOSAVE and SCRIPT KILL. */
+ /* Lua script too slow? Only allow commands with REDIS_CMD_STALE flag. */
if (server.lua_timedout &&
!(c->cmd->proc == shutdownCommand &&
c->argc == 2 &&
"aof_rewrite_in_progress:%d\r\n"
"aof_rewrite_scheduled:%d\r\n"
"aof_last_rewrite_time_sec:%ld\r\n"
- "aof_current_rewrite_time_sec:%ld\r\n",
+ "aof_current_rewrite_time_sec:%ld\r\n"
+ "aof_last_bgrewrite_status:%s\r\n",
server.loading,
server.dirty,
server.rdb_child_pid != -1,
server.lastsave,
- server.lastbgsave_status == REDIS_OK ? "ok" : "err",
+ (server.lastbgsave_status == REDIS_OK) ? "ok" : "err",
server.rdb_save_time_last,
(server.rdb_child_pid == -1) ?
-1 : time(NULL)-server.rdb_save_time_start,
server.aof_rewrite_scheduled,
server.aof_rewrite_time_last,
(server.aof_child_pid == -1) ?
- -1 : time(NULL)-server.aof_rewrite_time_start);
+ -1 : time(NULL)-server.aof_rewrite_time_start,
+ (server.aof_lastbgrewrite_status == REDIS_OK) ? "ok" : "err");
if (server.aof_state != REDIS_AOF_OFF) {
info = sdscatprintf(info,
fprintf(stderr," ./redis-server /etc/redis/6379.conf\n");
fprintf(stderr," ./redis-server --port 7777\n");
fprintf(stderr," ./redis-server --port 7777 --slaveof 127.0.0.1 8888\n");
- fprintf(stderr," ./redis-server /etc/myredis.conf --loglevel verbose\n");
+ fprintf(stderr," ./redis-server /etc/myredis.conf --loglevel verbose\n\n");
+ fprintf(stderr,"Sentinel mode:\n");
+ fprintf(stderr," ./redis-server /etc/sentinel.conf --sentinel\n");
exit(1);
}
void redisAsciiArt(void) {
#include "asciilogo.h"
char *buf = zmalloc(1024*16);
+ char *mode = "stand alone";
+
+ if (server.cluster_enabled) mode = "cluster";
+ else if (server.sentinel_mode) mode = "sentinel";
snprintf(buf,1024*16,ascii_logo,
REDIS_VERSION,
redisGitSHA1(),
strtol(redisGitDirty(),NULL,10) > 0,
(sizeof(long) == 8) ? "64" : "32",
- server.cluster_enabled ? "cluster" : "stand alone",
- server.port,
+ mode, server.port,
(long) getpid()
);
redisLogRaw(REDIS_NOTICE|REDIS_LOG_RAW,buf);
void memtest(size_t megabytes, int passes);
+/* Returns 1 if there is --sentinel among the arguments or if
+ * argv[0] is exactly "redis-sentinel". */
+int checkForSentinelMode(int argc, char **argv) {
+ int j;
+
+ if (strstr(argv[0],"redis-sentinel") != NULL) return 1;
+ for (j = 1; j < argc; j++)
+ if (!strcmp(argv[j],"--sentinel")) return 1;
+ return 0;
+}
+
+/* Function called at startup to load RDB or AOF file in memory. */
+void loadDataFromDisk(void) {
+ long long start = ustime();
+ if (server.aof_state == REDIS_AOF_ON) {
+ if (loadAppendOnlyFile(server.aof_filename) == REDIS_OK)
+ redisLog(REDIS_NOTICE,"DB loaded from append only file: %.3f seconds",(float)(ustime()-start)/1000000);
+ } else {
+ if (rdbLoad(server.rdb_filename) == 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);
+ }
+ }
+}
+
int main(int argc, char **argv) {
- long long start;
struct timeval tv;
/* We need to initialize our libraries, and the server configuration. */
srand(time(NULL)^getpid());
gettimeofday(&tv,NULL);
dictSetHashFunctionSeed(tv.tv_sec^tv.tv_usec^getpid());
+ server.sentinel_mode = checkForSentinelMode(argc,argv);
initServerConfig();
+ /* We need to init sentinel right now as parsing the configuration file
+ * in sentinel mode will have the effect of populating the sentinel
+ * data structures with master nodes to monitor. */
+ if (server.sentinel_mode) {
+ initSentinelConfig();
+ initSentinel();
+ }
+
if (argc >= 2) {
int j = 1; /* First option to parse in argv[] */
sds options = sdsempty();
loadServerConfig(configfile,options);
sdsfree(options);
} else {
- redisLog(REDIS_WARNING,"Warning: no config file specified, using the default config. In order to specify a config file use 'redis-server /path/to/redis.conf'");
+ redisLog(REDIS_WARNING, "Warning: no config file specified, using the default config. In order to specify a config file use %s /path/to/%s.conf", argv[0], server.sentinel_mode ? "sentinel" : "redis");
}
if (server.daemonize) daemonize();
initServer();
if (server.daemonize) createPidFile();
redisAsciiArt();
- redisLog(REDIS_WARNING,"Server started, Redis version " REDIS_VERSION);
-#ifdef __linux__
- linuxOvercommitMemoryWarning();
-#endif
- start = ustime();
- if (server.aof_state == REDIS_AOF_ON) {
- if (loadAppendOnlyFile(server.aof_filename) == REDIS_OK)
- redisLog(REDIS_NOTICE,"DB loaded from append only file: %.3f seconds",(float)(ustime()-start)/1000000);
- } else {
- if (rdbLoad(server.rdb_filename) == 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.sentinel_mode) {
+ /* Things only needed when not runnign in Sentinel mode. */
+ redisLog(REDIS_WARNING,"Server started, Redis version " REDIS_VERSION);
+ #ifdef __linux__
+ linuxOvercommitMemoryWarning();
+ #endif
+ loadDataFromDisk();
+ if (server.ipfd > 0)
+ redisLog(REDIS_NOTICE,"The server is now ready to accept connections on port %d", server.port);
+ if (server.sofd > 0)
+ redisLog(REDIS_NOTICE,"The server is now ready to accept connections at %s", server.unixsocket);
}
- if (server.ipfd > 0)
- redisLog(REDIS_NOTICE,"The server is now ready to accept connections on port %d", server.port);
- if (server.sofd > 0)
- redisLog(REDIS_NOTICE,"The server is now ready to accept connections at %s", server.unixsocket);
+
aeSetBeforeSleepProc(server.el,beforeSleep);
aeMain(server.el);
aeDeleteEventLoop(server.el);
projects / redis.git / commitdiff
