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-rw-r--r--src/redis.c107
1 files changed, 72 insertions, 35 deletions
diff --git a/src/redis.c b/src/redis.c
index b6490d57a..248693b6f 100644
--- a/src/redis.c
+++ b/src/redis.c
@@ -821,13 +821,8 @@ void clientsCron(void) {
* 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);
@@ -896,11 +891,14 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *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. */
@@ -985,6 +983,11 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
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;
}
@@ -2444,21 +2447,26 @@ void usage() {
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);
@@ -2496,8 +2504,35 @@ void setupSignalHandlers(void) {
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. */
@@ -2505,8 +2540,17 @@ int main(int argc, char **argv) {
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();
@@ -2558,27 +2602,20 @@ int main(int argc, char **argv) {
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);
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