cluster import/export of hash slots implemented in the query redirection engine

[redis.git] / src / redis.c

diff --git a/src/redis.c b/src/redis.c
index 1ac95702bfe72c5f361fe663526606d7f49bf0d8..5ddbb177cf6d284c2bceead0f7894f8b11034e3d 100644 (file)
--- a/src/redis.c
+++ b/src/redis.c
@@ -192,7 +192,8 @@ struct redisCommand redisCommandTable[] = {
     {"restore",restoreCommand,4,0,NULL,0,0,0,0,0},
     {"migrate",migrateCommand,6,0,NULL,0,0,0,0,0},
     {"dump",dumpCommand,2,0,NULL,0,0,0,0,0},
-    {"object",objectCommand,-2,0,NULL,0,0,0,0,0}
+    {"object",objectCommand,-2,0,NULL,0,0,0,0,0},
+    {"client",clientCommand,-2,0,NULL,0,0,0,0,0}
 };
 
 /*============================ Utility functions ============================ */
@@ -585,6 +586,10 @@ int serverCron(struct aeEventLoop *eventLoop, long long id, void *clientData) {
      */
     updateLRUClock();
 
+    /* Record the max memory used since the server was started. */
+    if (zmalloc_used_memory() > server.stat_peak_memory)
+        server.stat_peak_memory = zmalloc_used_memory();
+
     /* We received a SIGTERM, shutting down here in a safe way, as it is
      * not ok doing so inside the signal handler. */
     if (server.shutdown_asap) {
@@ -957,6 +962,7 @@ void initServer() {
     server.stat_starttime = time(NULL);
     server.stat_keyspace_misses = 0;
     server.stat_keyspace_hits = 0;
+    server.stat_peak_memory = 0;
     server.unixtime = time(NULL);
     aeCreateTimeEvent(server.el, 1, serverCron, NULL, NULL);
     if (server.ipfd > 0 && aeCreateFileEvent(server.el,server.ipfd,AE_READABLE,
@@ -1090,13 +1096,15 @@ int processCommand(redisClient *c) {
             addReplyError(c,"The cluster is down. Check with CLUSTER INFO for more information");
             return REDIS_OK;
         } else {
-            clusterNode *n = getNodeByQuery(c,cmd,c->argv,c->argc,&hashslot);
+            int ask;
+            clusterNode *n = getNodeByQuery(c,cmd,c->argv,c->argc,&hashslot,&ask);
             if (n == NULL) {
-                addReplyError(c,"Invalid cross-node request");
+                addReplyError(c,"Multi keys request invalid in cluster");
                 return REDIS_OK;
             } else if (n != server.cluster.myself) {
                 addReplySds(c,sdscatprintf(sdsempty(),
-                    "-MOVED %d %s:%d\r\n",hashslot,n->ip,n->port));
+                    "-%s %d %s:%d\r\n", ask ? "ASK" : "MOVED",
+                    hashslot,n->ip,n->port));
                 return REDIS_OK;
             }
         }
@@ -1240,7 +1248,6 @@ sds genRedisInfoString(char *section) {
     sds info = sdsempty();
     time_t uptime = time(NULL)-server.stat_starttime;
     int j, numcommands;
-    char hmem[64];
     struct rusage self_ru, c_ru;
     unsigned long lol, bib;
     int allsections = 0, defsections = 0;
@@ -1254,7 +1261,6 @@ sds genRedisInfoString(char *section) {
     getrusage(RUSAGE_SELF, &self_ru);
     getrusage(RUSAGE_CHILDREN, &c_ru);
     getClientsMaxBuffers(&lol,&bib);
-    bytesToHuman(hmem,zmalloc_used_memory());
 
     /* Server */
     if (allsections || defsections || !strcasecmp(section,"server")) {
@@ -1299,17 +1305,26 @@ sds genRedisInfoString(char *section) {
 
     /* Memory */
     if (allsections || defsections || !strcasecmp(section,"memory")) {
+        char hmem[64];
+        char peak_hmem[64];
+
+        bytesToHuman(hmem,zmalloc_used_memory());
+        bytesToHuman(peak_hmem,server.stat_peak_memory);
         if (sections++) info = sdscat(info,"\r\n");
         info = sdscatprintf(info,
             "# Memory\r\n"
             "used_memory:%zu\r\n"
             "used_memory_human:%s\r\n"
             "used_memory_rss:%zu\r\n"
+            "used_memory_peak:%zu\r\n"
+            "used_memory_peak_human:%s\r\n"
             "mem_fragmentation_ratio:%.2f\r\n"
             "use_tcmalloc:%d\r\n",
             zmalloc_used_memory(),
             hmem,
             zmalloc_get_rss(),
+            server.stat_peak_memory,
+            peak_hmem,
             zmalloc_get_fragmentation_ratio(),
     #ifdef USE_TCMALLOC
             1