SHUTDOWN now does the right thing when append only is on, that is, fsync instead...

[redis.git] / redis.c

diff --git a/redis.c b/redis.c
index cadba369af6a88daf08d75984e62e9145366a445..274dec7a85a3be63c984783ea27c73026fdf6716 100644 (file)
--- a/redis.c
+++ b/redis.c
@@ -301,6 +301,7 @@ struct redisServer {
     char *appendfilename;
     char *requirepass;
     int shareobjects;
+    int rdbcompression;
     /* Replication related */
     int isslave;
     char *masterauth;
@@ -1141,6 +1142,7 @@ static void initServerConfig() {
     server.appendfilename = "appendonly.aof";
     server.requirepass = NULL;
     server.shareobjects = 0;
+    server.rdbcompression = 1;
     server.sharingpoolsize = 1024;
     server.maxclients = 0;
     server.maxmemory = 0;
@@ -1341,6 +1343,10 @@ static void loadServerConfig(char *filename) {
             if ((server.shareobjects = yesnotoi(argv[1])) == -1) {
                 err = "argument must be 'yes' or 'no'"; goto loaderr;
             }
+        } else if (!strcasecmp(argv[0],"rdbcompression") && argc == 2) {
+            if ((server.rdbcompression = yesnotoi(argv[1])) == -1) {
+                err = "argument must be 'yes' or 'no'"; goto loaderr;
+            }
         } else if (!strcasecmp(argv[0],"shareobjectspoolsize") && argc == 2) {
             server.sharingpoolsize = atoi(argv[1]);
             if (server.sharingpoolsize < 1) {
@@ -2488,7 +2494,7 @@ static int rdbSaveStringObjectRaw(FILE *fp, robj *obj) {
 
     /* Try LZF compression - under 20 bytes it's unable to compress even
      * aaaaaaaaaaaaaaaaaa so skip it */
-    if (len > 20) {
+    if (server.rdbcompression && len > 20) {
         int retval;
 
         retval = rdbSaveLzfStringObject(fp,obj);
@@ -3314,20 +3320,26 @@ static void shutdownCommand(redisClient *c) {
         kill(server.bgsavechildpid,SIGKILL);
         rdbRemoveTempFile(server.bgsavechildpid);
     }
-    /* SYNC SAVE */
-    if (rdbSave(server.dbfilename) == REDIS_OK) {
-        if (server.daemonize)
-            unlink(server.pidfile);
-        redisLog(REDIS_WARNING,"%zu bytes used at exit",zmalloc_used_memory());
-        redisLog(REDIS_WARNING,"Server exit now, bye bye...");
-        exit(1);
+    if (server.appendonly) {
+        /* Append only file: fsync() the AOF and exit */
+        fsync(server.appendfd);
+        exit(0);
     } else {
-        /* Ooops.. error saving! The best we can do is to continue operating.
-         * Note that if there was a background saving process, in the next
-         * cron() Redis will be notified that the background saving aborted,
-         * handling special stuff like slaves pending for synchronization... */
-        redisLog(REDIS_WARNING,"Error trying to save the DB, can't exit"); 
-        addReplySds(c,sdsnew("-ERR can't quit, problems saving the DB\r\n"));
+        /* Snapshotting. Perform a SYNC SAVE and exit */
+        if (rdbSave(server.dbfilename) == REDIS_OK) {
+            if (server.daemonize)
+                unlink(server.pidfile);
+            redisLog(REDIS_WARNING,"%zu bytes used at exit",zmalloc_used_memory());
+            redisLog(REDIS_WARNING,"Server exit now, bye bye...");
+            exit(0);
+        } else {
+            /* Ooops.. error saving! The best we can do is to continue operating.
+             * Note that if there was a background saving process, in the next
+             * cron() Redis will be notified that the background saving aborted,
+             * handling special stuff like slaves pending for synchronization... */
+            redisLog(REDIS_WARNING,"Error trying to save the DB, can't exit"); 
+            addReplySds(c,sdsnew("-ERR can't quit, problems saving the DB\r\n"));
+        }
     }
 }
 
@@ -3625,7 +3637,7 @@ static void ltrimCommand(redisClient *c) {
     
     o = lookupKeyWrite(c->db,c->argv[1]);
     if (o == NULL) {
-        addReply(c,shared.nokeyerr);
+        addReply(c,shared.ok);
     } else {
         if (o->type != REDIS_LIST) {
             addReply(c,shared.wrongtypeerr);
@@ -3962,7 +3974,8 @@ static void sinterGenericCommand(redisClient *c, robj **setskeys, unsigned long
         if (!setobj) {
             zfree(dv);
             if (dstkey) {
-                deleteKey(c->db,dstkey);
+                if (deleteKey(c->db,dstkey))
+                    server.dirty++;
                 addReply(c,shared.czero);
             } else {
                 addReply(c,shared.nullmultibulk);