stat_fork_time taken at wrong place

deps/Makefile

@@ -95,7 +95,7 @@ JEMALLOC_LDFLAGS= $(LDFLAGS)
 
 jemalloc: .make-prerequisites
 	@printf '%b %b\n' $(MAKECOLOR)MAKE$(ENDCOLOR) $(BINCOLOR)$@$(ENDCOLOR)
-	cd jemalloc && ./configure --with-version=5.2.1-0-g0 --with-lg-quantum=3 --disable-cxx CFLAGS="$(JEMALLOC_CFLAGS)" LDFLAGS="$(JEMALLOC_LDFLAGS)"
+	cd jemalloc && ./configure --with-version=5.2.1-0-g0 --with-lg-quantum=3 --with-jemalloc-prefix=je_ --disable-cxx CFLAGS="$(JEMALLOC_CFLAGS)" LDFLAGS="$(JEMALLOC_LDFLAGS)"
 	cd jemalloc && $(MAKE) CFLAGS="$(JEMALLOC_CFLAGS)" LDFLAGS="$(JEMALLOC_LDFLAGS)" lib/libjemalloc.a
 
 .PHONY: jemalloc

runtest-moduleapi

@@ -37,6 +37,5 @@ $TCLSH tests/test_helper.tcl \
 --single unit/moduleapi/hash \
 --single unit/moduleapi/zset \
 --single unit/moduleapi/stream \
---single unit/moduleapi/load \
 --config server-threads 3 \
 "${@}"

src/IStorage.h

@@ -33,11 +33,10 @@ public:
     virtual bool enumerate(callback fn) const = 0;
     virtual size_t count() const = 0;
 
-    virtual void bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, char *rgfOverwrite, size_t celem) {
+    virtual void bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, size_t celem) {
         beginWriteBatch();
         for (size_t ielem = 0; ielem < celem; ++ielem) {
-            bool fOverwrite = (rgfOverwrite != nullptr) ? rgfOverwrite[ielem] : false;
-            insert(rgkeys[ielem], rgcbkeys[ielem], rgvals[ielem], rgcbvals[ielem], fOverwrite);
+            insert(rgkeys[ielem], rgcbkeys[ielem], rgvals[ielem], rgcbvals[ielem], false);
         }
         endWriteBatch();
     }

src/Makefile

@@ -25,7 +25,7 @@ NODEPS:=clean distclean
 
 # Default settings
 STD=-pedantic -DREDIS_STATIC=''
-CXX_STD=-std=c++17 -pedantic -fno-rtti -D__STDC_FORMAT_MACROS  
+CXX_STD=-std=c++14 -pedantic -fno-rtti -D__STDC_FORMAT_MACROS  
 ifneq (,$(findstring clang,$(CC)))
   STD+=-Wno-c11-extensions
 else

src/SnapshotPayloadParseState.cpp

@@ -140,7 +140,7 @@ void SnapshotPayloadParseState::flushQueuedKeys() {
     auto &insertsInFlightTmp = insertsInFlight; // C++ GRRRRRRRRRRRRRRRR, we don't want to capute "this" because that's dangerous
     if (current_database < cserver.dbnum) {
         g_pserver->asyncworkqueue->AddWorkFunction([idb, vecqueuedKeys = std::move(this->vecqueuedKeys), vecqueuedKeysCb = std::move(this->vecqueuedKeysCb), vecqueuedVals = std::move(this->vecqueuedVals), vecqueuedValsCb = std::move(this->vecqueuedValsCb), &insertsInFlightTmp, pallocator = m_spallocator.release()]() mutable {
-            g_pserver->db[idb]->bulkDirectStorageInsert(vecqueuedKeys.data(), vecqueuedKeysCb.data(), vecqueuedVals.data(), vecqueuedValsCb.data(), vecqueuedKeys.size());
+            g_pserver->db[idb]->bulkStorageInsert(vecqueuedKeys.data(), vecqueuedKeysCb.data(), vecqueuedVals.data(), vecqueuedValsCb.data(), vecqueuedKeys.size());
             --insertsInFlightTmp;
             delete pallocator;
         });

src/StorageCache.cpp

@@ -114,14 +114,13 @@ void StorageCache::insert(sds key, const void *data, size_t cbdata, bool fOverwr
 }
 
 long _dictKeyIndex(dict *d, const void *key, uint64_t hash, dictEntry **existing);
-void StorageCache::bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, char *rgfOverwrite, size_t celem)
+void StorageCache::bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, size_t celem)
 {
     std::vector<dictEntry*> vechashes;
     if (m_pdict != nullptr) {
         vechashes.reserve(celem);
 
         for (size_t ielem = 0; ielem < celem; ++ielem) {
-            if (rgfOverwrite != nullptr && rgfOverwrite[ielem]) continue;
             dictEntry *de = (dictEntry*)zmalloc(sizeof(dictEntry));
             de->key = (void*)dictGenHashFunction(rgkeys[ielem], (int)rgcbkeys[ielem]);
             de->v.u64 = 1;
@@ -153,7 +152,7 @@ void StorageCache::bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, si
     }
     ul.unlock();
 
-    m_spstorage->bulkInsert(rgkeys, rgcbkeys, rgvals, rgcbvals, rgfOverwrite, celem);
+    m_spstorage->bulkInsert(rgkeys, rgcbkeys, rgvals, rgcbvals, celem);
 
     bulkInsertsInProgress--;
 }

src/StorageCache.h

@@ -41,7 +41,7 @@ public:
     void clear(void(callback)(void*));
     void clearAsync();
     void insert(sds key, const void *data, size_t cbdata, bool fOverwrite);
-    void bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, char *rgfOverwrite, size_t celem);
+    void bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, size_t celem);
     void retrieve(sds key, IStorage::callbackSingle fn) const;
     bool erase(sds key);
     void emergencyFreeCache();

src/ae.cpp

@@ -859,11 +859,6 @@ void aeReleaseForkLock()
     g_forkLock.downgradeWrite();
 }
 
-void aeForkLockInChild()
-{
-    g_forkLock.setNotify(false);
-}
-
 int aeThreadOwnsLock()
 {
     return fOwnLockOverride || g_lock.fOwnLock();

src/ae.h

@@ -171,7 +171,6 @@ int aeTryAcquireLock(int fWeak);
 void aeThreadOffline();
 void aeReleaseLock();
 void aeReleaseForkLock();
-void aeForkLockInChild();
 int aeThreadOwnsLock();
 void aeSetThreadOwnsLockOverride(int fOverride);
 int aeLockContested(int threshold);

src/anet.c

@@ -441,7 +441,7 @@ static int _anetTcpServer(char *err, int port, const char *bindaddr, int af, int
     char _port[6];  /* strlen("65535") */
     struct addrinfo hints, *servinfo, *p;
 
-    snprintf(_port,sizeof(_port),"%d",port);
+    snprintf(_port,6,"%d",port);
     memset(&hints,0,sizeof(hints));
     hints.ai_family = af;
     hints.ai_socktype = SOCK_STREAM;

src/aof.cpp

@@ -752,7 +752,7 @@ void feedAppendOnlyFile(struct redisCommand *cmd, int dictid, robj **argv, int a
      * accumulate the differences between the child DB and the current one
      * in a buffer, so that when the child process will do its work we
      * can append the differences to the new append only file. */
-    if (hasActiveChildProcess() && g_pserver->child_type == CHILD_TYPE_AOF)
+    if (g_pserver->child_type == CHILD_TYPE_AOF)
         aofRewriteBufferAppend((unsigned char*)buf,sdslen(buf));
 
     sdsfree(buf);
@@ -1658,7 +1658,7 @@ int rewriteAppendOnlyFile(char *filename) {
 { // BEGIN GOTO SCOPED VARIABLES
     /* Note that we have to use a different temp name here compared to the
      * one used by rewriteAppendOnlyFileBackground() function. */
-    snprintf(tmpfile,sizeof(tmpfile),"temp-rewriteaof-%d.aof", (int) getpid());
+    snprintf(tmpfile,256,"temp-rewriteaof-%d.aof", (int) getpid());
     fp = fopen(tmpfile,"w");
     if (!fp) {
         serverLog(LL_WARNING, "Opening the temp file for AOF rewrite in rewriteAppendOnlyFile(): %s", strerror(errno));
@@ -1895,7 +1895,7 @@ int rewriteAppendOnlyFileBackground(void) {
         /* Child */
         redisSetProcTitle("keydb-aof-rewrite");
         redisSetCpuAffinity(g_pserver->aof_rewrite_cpulist);
-        snprintf(tmpfile,sizeof(tmpfile),"temp-rewriteaof-bg-%d.aof", (int) getpid());
+        snprintf(tmpfile,256,"temp-rewriteaof-bg-%d.aof", (int) getpid());
         if (rewriteAppendOnlyFile(tmpfile) == C_OK) {
             sendChildCowInfo(CHILD_INFO_TYPE_AOF_COW_SIZE, "AOF rewrite");
             exitFromChild(0);
@@ -1944,10 +1944,10 @@ void bgrewriteaofCommand(client *c) {
 void aofRemoveTempFile(pid_t childpid) {
     char tmpfile[256];
 
-    snprintf(tmpfile,sizeof(tmpfile),"temp-rewriteaof-bg-%d.aof", (int) childpid);
+    snprintf(tmpfile,256,"temp-rewriteaof-bg-%d.aof", (int) childpid);
     bg_unlink(tmpfile);
 
-    snprintf(tmpfile,sizeof(tmpfile),"temp-rewriteaof-%d.aof", (int) childpid);
+    snprintf(tmpfile,256,"temp-rewriteaof-%d.aof", (int) childpid);
     bg_unlink(tmpfile);
 }
 
@@ -1985,7 +1985,7 @@ void backgroundRewriteDoneHandler(int exitcode, int bysignal) {
         /* Flush the differences accumulated by the parent to the
          * rewritten AOF. */
         latencyStartMonitor(latency);
-        snprintf(tmpfile,sizeof(tmpfile),"temp-rewriteaof-bg-%d.aof",
+        snprintf(tmpfile,256,"temp-rewriteaof-bg-%d.aof",
             (int)g_pserver->child_pid);
         newfd = open(tmpfile,O_WRONLY|O_APPEND);
         if (newfd == -1) {

src/childinfo.cpp

@@ -42,7 +42,6 @@ typedef struct {
  * RDB / AOF saving process from the child to the parent (for instance
  * the amount of copy on write memory used) */
 void openChildInfoPipe(void) {
-    serverAssert(g_pserver->child_info_pipe[0] == -1);
     if (pipe(g_pserver->child_info_pipe) == -1) {
         /* On error our two file descriptors should be still set to -1,
          * but we call anyway closeChildInfoPipe() since can't hurt. */

src/cluster.cpp

@@ -5107,7 +5107,7 @@ void createDumpPayload(rio *payload, robj_roptr o, robj *key) {
     serverAssert(rdbSaveObject(payload,o,key));
     char szT[32];
     uint64_t mvcc = mvccFromObj(o);
-    snprintf(szT, sizeof(szT), "%" PRIu64, mvcc);
+    snprintf(szT, 32, "%" PRIu64, mvcc);
     serverAssert(rdbSaveAuxFieldStrStr(payload,"mvcc-tstamp", szT) != -1);
 
     /* Write the footer, this is how it looks like:

src/config.cpp

@@ -35,7 +35,6 @@
 
 #include <fcntl.h>
 #include <sys/stat.h>
-#include <sys/wait.h>
 #ifdef __linux__
 #include <sys/sysinfo.h>
 #endif
@@ -2457,32 +2456,6 @@ static int isValidAOFfilename(char *val, const char **err) {
     return 1;
 }
 
-static int isValidS3Bucket(char *s3bucket, const char **err) {
-    int status = EXIT_FAILURE;
-    pid_t pid = fork();
-    if (pid < 0)
-    {
-        *err = "couldn't fork to call aws cli";
-        return 0;
-    }
-
-    if (pid == 0)
-    {
-        execlp("aws", "aws", "s3", "ls", s3bucket);
-        exit(EXIT_FAILURE);
-    }
-    else 
-    {
-        waitpid(pid, &status, 0);
-    }
-
-    if (status != EXIT_SUCCESS) {
-        *err = "could not access s3 bucket";
-        return 0;
-    }
-    return 1;
-}
-
 /* Validate specified string is a valid proc-title-template */
 static int isValidProcTitleTemplate(char *val, const char **err) {
     if (!validateProcTitleTemplate(val)) {
@@ -2615,7 +2588,7 @@ static int updateMaxclients(long long val, long long prev, const char **err) {
         adjustOpenFilesLimit();
         if (g_pserver->maxclients != val) {
             static char msg[128];
-            snprintf(msg, sizeof(msg), "The operating system is not able to handle the specified number of clients, try with %d", g_pserver->maxclients);
+            snprintf(msg, 128, "The operating system is not able to handle the specified number of clients, try with %d", g_pserver->maxclients);
             *err = msg;
             if (g_pserver->maxclients > prev) {
                 g_pserver->maxclients = prev;
@@ -2654,7 +2627,7 @@ static int updateMaxclients(long long val, long long prev, const char **err) {
 
                 if (res != AE_OK){
                     static char msg[128];
-                    snprintf(msg, sizeof(msg),"Failed to post the request to change setsize for Thread %d", iel);
+                    snprintf(msg, 128,"Failed to post the request to change setsize for Thread %d", iel);
                     *err = msg;
                     return 0;
                 }
@@ -2830,7 +2803,6 @@ standardConfig configs[] = {
     createStringConfig("cluster-announce-ip", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, g_pserver->cluster_announce_ip, NULL, NULL, NULL),
     createStringConfig("syslog-ident", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, g_pserver->syslog_ident, "redis", NULL, NULL),
     createStringConfig("dbfilename", NULL, MODIFIABLE_CONFIG, ALLOW_EMPTY_STRING, g_pserver->rdb_filename, CONFIG_DEFAULT_RDB_FILENAME, isValidDBfilename, NULL),
-    createStringConfig("db-s3-object", NULL, MODIFIABLE_CONFIG, EMPTY_STRING_IS_NULL, g_pserver->rdb_s3bucketpath, NULL, isValidS3Bucket, NULL),
     createStringConfig("appendfilename", NULL, IMMUTABLE_CONFIG, ALLOW_EMPTY_STRING, g_pserver->aof_filename, "appendonly.aof", isValidAOFfilename, NULL),
     createStringConfig("server_cpulist", NULL, IMMUTABLE_CONFIG, EMPTY_STRING_IS_NULL, g_pserver->server_cpulist, NULL, NULL, NULL),
     createStringConfig("bio_cpulist", NULL, IMMUTABLE_CONFIG, EMPTY_STRING_IS_NULL, g_pserver->bio_cpulist, NULL, NULL, NULL),

src/db.cpp

@@ -1059,7 +1059,7 @@ void keysCommand(client *c) {
     sds pattern = szFromObj(c->argv[1]);
 
     const redisDbPersistentDataSnapshot *snapshot = nullptr;
-    if (!(c->flags & (CLIENT_MULTI | CLIENT_BLOCKED | CLIENT_DENY_BLOCKING)))
+    if (!(c->flags & (CLIENT_MULTI | CLIENT_BLOCKED)))
         snapshot = c->db->createSnapshot(c->mvccCheckpoint, true /* fOptional */);
     if (snapshot != nullptr)
     {
@@ -2607,17 +2607,6 @@ void clusterStorageLoadCallback(const char *rgchkey, size_t cch, void *)
     slotToKeyUpdateKeyCore(rgchkey, cch, true /*add*/);
 }
 
-void moduleLoadCallback(const char * rgchKey, size_t, void *data) {
-    redisObjectStack keyobj;
-    initStaticStringObject(keyobj, const_cast<char *>(rgchKey));
-    moduleNotifyKeyspaceEvent(NOTIFY_LOADED, "loaded", &keyobj, *(int *)data);
-}
-
-void moduleClusterLoadCallback(const char * rgchKey, size_t cchKey, void *data) {
-    clusterStorageLoadCallback(rgchKey, cchKey, data);
-    moduleLoadCallback(rgchKey, cchKey, data);
-}
-
 void redisDb::initialize(int id)
 {
     redisDbPersistentData::initialize();
@@ -2636,8 +2625,8 @@ void redisDb::storageProviderInitialize()
 {
     if (g_pserver->m_pstorageFactory != nullptr)
     {
-        IStorageFactory::key_load_iterator itr = g_pserver->cluster_enabled ? moduleClusterLoadCallback : moduleLoadCallback;
-        this->setStorageProvider(StorageCache::create(g_pserver->m_pstorageFactory, id, itr, &id));
+        IStorageFactory::key_load_iterator itr = (g_pserver->cluster_enabled) ? clusterStorageLoadCallback : nullptr;
+        this->setStorageProvider(StorageCache::create(g_pserver->m_pstorageFactory, id, itr, nullptr));
     }
 }
 
@@ -2908,13 +2897,15 @@ void redisDbPersistentData::storeDatabase()
     dictReleaseIterator(di);
 }
 
-/* static */ sds redisDbPersistentData::serializeChange(redisDbPersistentData *db, const char *key)
+/* static */ void redisDbPersistentData::serializeAndStoreChange(StorageCache *storage, redisDbPersistentData *db, const char *key, bool fUpdate)
 {
     auto itr = db->find_cached_threadsafe(key);
     if (itr == nullptr)
-        return nullptr;
+        return;
     robj *o = itr.val();
-    return serializeStoredObjectAndExpire(db, (const char*) itr.key(), o);
+    sds temp = serializeStoredObjectAndExpire(db, (const char*) itr.key(), o);
+    storage->insert((sds)key, temp, sdslen(temp), fUpdate);
+    sdsfree(temp);
 }
 
 bool redisDbPersistentData::processChanges(bool fSnapshot)
@@ -2957,30 +2948,10 @@ bool redisDbPersistentData::processChanges(bool fSnapshot)
             {
                 dictIterator *di = dictGetIterator(m_dictChanged);
                 dictEntry *de;
-                std::vector<char*> veckeys;
-                std::vector<size_t> veccbkeys;
-                std::vector<char*> vecvals;
-                std::vector<size_t> veccbvals;
-                std::vector<char> vecoverwrite;
-                veckeys.reserve(dictSize(m_dictChanged));
-                veccbkeys.reserve(dictSize(m_dictChanged));
-                vecvals.reserve(dictSize(m_dictChanged));
-                veccbvals.reserve(dictSize(m_dictChanged));
-                vecoverwrite.reserve(dictSize(m_dictChanged));
                 while ((de = dictNext(di)) != nullptr)
                 {
-                    sds val = serializeChange(this, (const char*)dictGetKey(de));
-                    if (val != nullptr) {
-                        veckeys.push_back((char*)dictGetKey(de));
-                        veccbkeys.push_back(sdslen((sds)dictGetKey(de)));
-                        vecvals.push_back(val);
-                        veccbvals.push_back(sdslen(val));
-                        vecoverwrite.push_back((bool)dictGetVal(de));
-                    }
+                    serializeAndStoreChange(m_spstorage.get(), this, (const char*)dictGetKey(de), (bool)dictGetVal(de));
                 }
-                m_spstorage->bulkInsert(veckeys.data(), veccbkeys.data(), vecvals.data(), veccbvals.data(), vecoverwrite.data(), veckeys.size());
-                for (auto val : vecvals)
-                    sdsfree(val);
                 dictReleaseIterator(di);
             }
         }
@@ -3014,7 +2985,7 @@ void redisDbPersistentData::processChangesAsync(std::atomic<int> &pendingJobs)
             vecvals.push_back(temp);
             veccbvals.push_back(sdslen(temp));
         }
-        m_spstorage->bulkInsert(veckeys.data(), veccbkeys.data(), vecvals.data(), veccbvals.data(), nullptr, veckeys.size());
+        m_spstorage->bulkInsert(veckeys.data(), veccbkeys.data(), vecvals.data(), veccbvals.data(), veckeys.size());
         for (auto val : vecvals)
             sdsfree(val);
         dictReleaseIterator(di);
@@ -3023,17 +2994,9 @@ void redisDbPersistentData::processChangesAsync(std::atomic<int> &pendingJobs)
     });
 }
 
-/* This function is to bulk insert directly to storage provider bypassing in memory, assumes rgKeys and rgVals are not sds strings */
-void redisDbPersistentData::bulkDirectStorageInsert(char **rgKeys, size_t *rgcbKeys, char **rgVals, size_t *rgcbVals, size_t celem)
+void redisDbPersistentData::bulkStorageInsert(char **rgKeys, size_t *rgcbKeys, char **rgVals, size_t *rgcbVals, size_t celem)
 {
-    if (g_pserver->cluster_enabled) {
-        aeAcquireLock();
-        for (size_t i = 0; i < celem; i++) {
-            slotToKeyUpdateKeyCore(rgKeys[i], rgcbKeys[i], 1);
-        }
-        aeReleaseLock();
-    }
-    m_spstorage->bulkInsert(rgKeys, rgcbKeys, rgVals, rgcbVals, nullptr, celem);
+    m_spstorage->bulkInsert(rgKeys, rgcbKeys, rgVals, rgcbVals, celem);
 }
 
 void redisDbPersistentData::commitChanges(const redisDbPersistentDataSnapshot **psnapshotFree)
@@ -3042,30 +3005,10 @@ void redisDbPersistentData::commitChanges(const redisDbPersistentDataSnapshot **
     {
         dictIterator *di = dictGetIterator(m_dictChangedStorageFlush);
         dictEntry *de;
-        std::vector<char*> veckeys;
-        std::vector<size_t> veccbkeys;
-        std::vector<char*> vecvals;
-        std::vector<size_t> veccbvals;
-        std::vector<char> vecoverwrite;
-        veckeys.reserve(dictSize(m_dictChanged));
-        veccbkeys.reserve(dictSize(m_dictChanged));
-        vecvals.reserve(dictSize(m_dictChanged));
-        veccbvals.reserve(dictSize(m_dictChanged));
-        vecoverwrite.resize(dictSize(m_dictChanged));
         while ((de = dictNext(di)) != nullptr)
         {
-            sds val = serializeChange((redisDbPersistentData*)m_pdbSnapshotStorageFlush, (const char*)dictGetKey(de));
-            if (val != nullptr) {
-                veckeys.push_back((char*)dictGetKey(de));
-                veccbkeys.push_back(sdslen((sds)dictGetKey(de)));
-                vecvals.push_back(val);
-                veccbvals.push_back(sdslen(val));
-                vecoverwrite.push_back((bool)dictGetVal(de));
-            }
+            serializeAndStoreChange(m_spstorage.get(), (redisDbPersistentData*)m_pdbSnapshotStorageFlush, (const char*)dictGetKey(de), (bool)dictGetVal(de));
         }
-        m_spstorage->bulkInsert(veckeys.data(), veccbkeys.data(), vecvals.data(), veccbvals.data(), vecoverwrite.data(), veckeys.size());
-        for (auto val : vecvals)
-            sdsfree(val);
         dictReleaseIterator(di);
         dictRelease(m_dictChangedStorageFlush);
         m_dictChangedStorageFlush = nullptr;
@@ -3314,7 +3257,7 @@ int dbnumFromDb(redisDb *db)
     serverPanic("invalid database pointer");
 }
 
-void redisDbPersistentData::prefetchKeysAsync(client *c, parsed_command &command)
+bool redisDbPersistentData::prefetchKeysAsync(client *c, parsed_command &command, bool fExecOK)
 {
     if (m_spstorage == nullptr) {
 #if defined(__x86_64__) || defined(__i386__)
@@ -3326,7 +3269,7 @@ void redisDbPersistentData::prefetchKeysAsync(client *c, parsed_command &command
             const char *cmd = szFromObj(command.argv[0]);
             if (!strcasecmp(cmd, "set") || !strcasecmp(cmd, "get")) {
                 if (c->db->m_spdbSnapshotHOLDER != nullptr)
-                    return; // this is dangerous enough without a snapshot around
+                    return false; // this is dangerous enough without a snapshot around
                 auto h = dictSdsHash(szFromObj(command.argv[1]));
                 for (int iht = 0; iht < 2; ++iht) {
                     auto hT = h & c->db->m_pdict->ht[iht].sizemask;
@@ -3346,7 +3289,7 @@ void redisDbPersistentData::prefetchKeysAsync(client *c, parsed_command &command
             }
         }
 #endif
-        return;
+        return false;
     }
 
     AeLocker lock;
@@ -3356,10 +3299,10 @@ void redisDbPersistentData::prefetchKeysAsync(client *c, parsed_command &command
     getKeysResult result = GETKEYS_RESULT_INIT;
     auto cmd = lookupCommand(szFromObj(command.argv[0]));
     if (cmd == nullptr)
-        return; // Bad command? It's not for us to judge, just bail
+        return false; // Bad command? It's not for us to judge, just bail
     
     if (command.argc < std::abs(cmd->arity))
-        return; // Invalid number of args
+        return false; // Invalid number of args
     
     int numkeys = getKeysFromCommand(cmd, command.argv, command.argc, &result);
     for (int ikey = 0; ikey < numkeys; ++ikey)
@@ -3392,6 +3335,7 @@ void redisDbPersistentData::prefetchKeysAsync(client *c, parsed_command &command
         }
     }
 
+    bool fNoInsert = false;
     if (!vecInserts.empty()) {
         lock.arm(c);
         for (auto &tuple : vecInserts)
@@ -3407,11 +3351,13 @@ void redisDbPersistentData::prefetchKeysAsync(client *c, parsed_command &command
                     // While unlocked this was already ensured
                     decrRefCount(o);
                     sdsfree(sharedKey);
+                    fNoInsert = true;
                 }
                 else
                 {
                     if (spexpire != nullptr) {
                         if (spexpire->when() < mstime()) {
+                            fNoInsert = true;
                             break;
                         }
                     }
@@ -3438,5 +3384,12 @@ void redisDbPersistentData::prefetchKeysAsync(client *c, parsed_command &command
         lock.disarm();
     }
 
-    return;
-}
+    if (fExecOK && !fNoInsert && cmd->proc == getCommand && !vecInserts.empty()) {
+        robj *o = std::get<1>(vecInserts[0]);
+        if (o != nullptr) {
+            addReplyBulk(c, o);
+            return true;
+        }
+    }
+    return false;
+}

src/debug.cpp

@@ -341,10 +341,10 @@ void mallctl_int(client *c, robj **argv, int argc) {
     }
     size_t sz = sizeof(old);
     while (sz > 0) {
-        if ((ret=mallctl(szFromObj(argv[0]), &old, &sz, argc > 1? &val: NULL, argc > 1?sz: 0))) {
+        if ((ret=je_mallctl(szFromObj(argv[0]), &old, &sz, argc > 1? &val: NULL, argc > 1?sz: 0))) {
             if (ret == EPERM && argc > 1) {
                 /* if this option is write only, try just writing to it. */
-                if (!(ret=mallctl(szFromObj(argv[0]), NULL, 0, &val, sz))) {
+                if (!(ret=je_mallctl(szFromObj(argv[0]), NULL, 0, &val, sz))) {
                     addReply(c, shared.ok);
                     return;
                 }
@@ -375,7 +375,7 @@ void mallctl_string(client *c, robj **argv, int argc) {
     char *old;
     size_t sz = sizeof(old);
     /* for strings, it seems we need to first get the old value, before overriding it. */
-    if ((rret=mallctl(szFromObj(argv[0]), &old, &sz, NULL, 0))) {
+    if ((rret=je_mallctl(szFromObj(argv[0]), &old, &sz, NULL, 0))) {
         /* return error unless this option is write only. */
         if (!(rret == EPERM && argc > 1)) {
             addReplyErrorFormat(c,"%s", strerror(rret));
@@ -387,7 +387,7 @@ void mallctl_string(client *c, robj **argv, int argc) {
         char **valref = &val;
         if ((!strcmp(val,"VOID")))
             valref = NULL, sz = 0;
-        wret = mallctl(szFromObj(argv[0]), NULL, 0, valref, sz);
+        wret = je_mallctl(szFromObj(argv[0]), NULL, 0, valref, sz);
     }
     if (!rret)
         addReplyBulkCString(c, old);

src/dict.cpp

@@ -1577,7 +1577,7 @@ char *stringFromLongLong(long long value) {
     int len;
     char *s;
 
-    len = snprintf(buf,sizeof(buf),"%lld",value);
+    len = snprintf(buf,32,"%lld",value);
     s = zmalloc(len+1);
     memcpy(s, buf, len);
     s[len] = '\0';

src/endianconv.c

@@ -112,15 +112,15 @@ int endianconvTest(int argc, char *argv[], int accurate) {
     UNUSED(argv);
     UNUSED(accurate);
 
-    snprintf(buf,sizeof(buf),"ciaoroma");
+    snprintf(buf,32,"ciaoroma");
     memrev16(buf);
     printf("%s\n", buf);
 
-    snprintf(buf,sizeof(buf),"ciaoroma");
+    snprintf(buf,32,"ciaoroma");
     memrev32(buf);
     printf("%s\n", buf);
 
-    snprintf(buf,sizeof(buf),"ciaoroma");
+    snprintf(buf,32,"ciaoroma");
     memrev64(buf);
     printf("%s\n", buf);
 

src/keydb-diagnostic-tool.cpp

@@ -904,7 +904,7 @@ int main(int argc, const char **argv) {
 
     while (self_threads < config.max_threads) {
         for (int i = 0; i < config.numclients; i++) {
-            snprintf(command, sizeof(command), "SET %d %s\r\n", self_threads * config.numclients + i, set_value);
+            snprintf(command, 63, "SET %d %s\r\n", self_threads * config.numclients + i, set_value);
             createClient(command, strlen(command), NULL,self_threads);
         }
 

src/modules/hellotimer.c

@@ -51,9 +51,8 @@ int TimerCommand_RedisCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int
 
     for (int j = 0; j < 10; j++) {
         int delay = rand() % 5000;
-        int bufsize = 256;
-        char *buf = RedisModule_Alloc(bufsize);
-        snprintf(buf,bufsize,"After %d", delay);
+        char *buf = RedisModule_Alloc(256);
+        snprintf(buf,256,"After %d", delay);
         RedisModuleTimerID tid = RedisModule_CreateTimer(ctx,delay,timerHandler,buf);
         REDISMODULE_NOT_USED(tid);
     }

src/networking.cpp

@@ -145,7 +145,7 @@ client *createClient(connection *conn, int iel) {
     client_id = g_pserver->next_client_id.fetch_add(1);
     c->iel = iel;
     c->id = client_id;
-    snprintf(c->lock.szName, sizeof(c->lock.szName), "client %" PRIu64, client_id);
+    snprintf(c->lock.szName, 56, "client %" PRIu64, client_id);
     c->resp = 2;
     c->conn = conn;
     c->name = NULL;
@@ -777,11 +777,11 @@ void setDeferredAggregateLen(client *c, void *node, long length, char prefix) {
          * we return NULL in addReplyDeferredLen() */
         if (node == NULL) return;
         char lenstr[128];
-        size_t lenstr_len = snprintf(lenstr, sizeof(lenstr), "%c%ld\r\n", prefix, length);
+        size_t lenstr_len = snprintf(lenstr, 128, "%c%ld\r\n", prefix, length);
         setDeferredReply(c, node, lenstr, lenstr_len);
     } else {
         char lenstr[128];
-        int lenstr_len = snprintf(lenstr, sizeof(lenstr), "%c%ld\r\n", prefix, length);
+        int lenstr_len = snprintf(lenstr, 128, "%c%ld\r\n", prefix, length);
 
         size_t idxSplice = (size_t)node;
         serverAssert(idxSplice <= c->replyAsync->used);
@@ -2595,7 +2595,9 @@ void parseClientCommandBuffer(client *c) {
             (g_pserver->m_pstorageFactory || aeLockContested(cserver.cthreads/2) || cserver.cthreads == 1) && !GlobalLocksAcquired()) {
             auto &query = c->vecqueuedcmd.back();
             if (query.argc > 0 && query.argc == query.argcMax) {
-                c->db->prefetchKeysAsync(c, query);
+                if (c->db->prefetchKeysAsync(c, query, c->vecqueuedcmd.size() == 1)) {
+                    c->vecqueuedcmd.erase(c->vecqueuedcmd.begin());
+                }
             }
         }
         c->reqtype = 0;

src/new.cpp

@@ -41,3 +41,10 @@ void operator delete(void *p, std::size_t) noexcept
 }
 
 #endif
+
+#if defined(USE_JEMALLOC)
+extern "C" size_t malloc_usable_size(void *ptr)
+{
+    return zmalloc_usable_size(ptr);
+}
+#endif

src/object.cpp

@@ -1541,7 +1541,7 @@ void memoryCommand(client *c) {
     } else if (!strcasecmp(szFromObj(c->argv[1]),"malloc-stats") && c->argc == 2) {
 #if defined(USE_JEMALLOC)
         sds info = sdsempty();
-        malloc_stats_print(inputCatSds, &info, NULL);
+        je_malloc_stats_print(inputCatSds, &info, NULL);
         addReplyVerbatim(c,info,sdslen(info),"txt");
         sdsfree(info);
 #else

src/rdb.cpp

@@ -1163,7 +1163,7 @@ int rdbSaveKeyValuePair(rio *rdb, robj_roptr key, robj_roptr val, const expireEn
 
     char szT[32];
     if (g_pserver->fActiveReplica) {
-        snprintf(szT, sizeof(szT), "%" PRIu64, mvccFromObj(val));
+        snprintf(szT, 32, "%" PRIu64, mvccFromObj(val));
         if (rdbSaveAuxFieldStrStr(rdb,"mvcc-tstamp", szT) == -1) return -1;
     }
 
@@ -1190,7 +1190,7 @@ int rdbSaveKeyValuePair(rio *rdb, robj_roptr key, robj_roptr val, const expireEn
         {
             if (itr.subkey() == nullptr)
                 continue;   // already saved
-            snprintf(szT, sizeof(szT), "%lld", itr.when());
+            snprintf(szT, 32, "%lld", itr.when());
             rdbSaveAuxFieldStrStr(rdb,"keydb-subexpire-key",itr.subkey());
             rdbSaveAuxFieldStrStr(rdb,"keydb-subexpire-when",szT);
         }
@@ -1490,7 +1490,7 @@ int rdbSaveFile(char *filename, const redisDbPersistentDataSnapshot **rgpdb, rdb
     rio rdb;
     int error = 0;
 
-    getTempFileName(tmpfile, g_pserver->rdbThreadVars.tmpfileNum);
+    snprintf(tmpfile,256,"temp-%d-%d.rdb", getpid(), g_pserver->rdbThreadVars.tmpfileNum);
     fp = fopen(tmpfile,"w");
     if (!fp) {
         char *cwdp = getcwd(cwd,MAXPATHLEN);
@@ -1660,14 +1660,12 @@ int launchRdbSaveThread(pthread_t &child, rdbSaveInfo *rsi)
         pthread_attr_t tattr;
         pthread_attr_init(&tattr);
         pthread_attr_setstacksize(&tattr, 1 << 23); // 8 MB
-        openChildInfoPipe();
         if (pthread_create(&child, &tattr, rdbSaveThread, args)) {
             pthread_attr_destroy(&tattr);
             for (int idb = 0; idb < cserver.dbnum; ++idb)
                 g_pserver->db[idb]->endSnapshot(args->rgpdb[idb]);
             args->~rdbSaveThreadArgs();
             zfree(args);
-            closeChildInfoPipe();
             return C_ERR;
         }
         pthread_attr_destroy(&tattr);
@@ -1685,11 +1683,13 @@ int rdbSaveBackground(rdbSaveInfo *rsi) {
 
     g_pserver->dirty_before_bgsave = g_pserver->dirty;
     g_pserver->lastbgsave_try = time(NULL);
+    openChildInfoPipe();
 
     start = ustime();
     latencyStartMonitor(g_pserver->rdb_save_latency);
 
     if (launchRdbSaveThread(child, rsi) != C_OK) {
+        closeChildInfoPipe();
         g_pserver->lastbgsave_status = C_ERR;
         serverLog(LL_WARNING,"Can't save in background: fork: %s",
             strerror(errno));
@@ -3694,7 +3694,7 @@ void killRDBChild(bool fSynchronous) {
     serverAssert(GlobalLocksAcquired());
 
     if (cserver.fForkBgSave) {
-        kill(g_pserver->child_pid,SIGUSR1);
+        kill(g_pserver->rdb_child_pid,SIGUSR1);
     } else { 
         g_pserver->rdbThreadVars.fRdbThreadCancel = true;
         if (g_pserver->rdb_child_type == RDB_CHILD_TYPE_SOCKET) {

src/rdb.h

@@ -151,7 +151,6 @@ int rdbLoad(rdbSaveInfo *rsi, int rdbflags);
 int rdbLoadFile(const char *filename, rdbSaveInfo *rsi, int rdbflags);
 int rdbSaveBackground(rdbSaveInfo *rsi);
 int rdbSaveToSlavesSockets(rdbSaveInfo *rsi);
-void getTempFileName(char tmpfile[], int tmpfileNum);
 void rdbRemoveTempFile(pid_t childpid, int from_signal);
 int rdbSave(const redisDbPersistentDataSnapshot **rgpdb, rdbSaveInfo *rsi);
 int rdbSaveFile(char *filename, const redisDbPersistentDataSnapshot **rgpdb, rdbSaveInfo *rsi);

src/readwritelock.h

@@ -8,7 +8,6 @@ class readWriteLock {
     int m_readCount = 0;
     int m_writeCount = 0;
     bool m_writeWaiting = false;
-    bool m_notify = true;
 public:
     readWriteLock(const char *name) : m_readLock(name), m_writeLock(name) {}
 
@@ -66,8 +65,7 @@ public:
     void releaseRead() {
         std::unique_lock<fastlock> rm(m_readLock);
         m_readCount--;
-        if (m_notify)
-            m_cv.notify_all();
+        m_cv.notify_all();
     }
 
     void releaseWrite(bool exclusive = true) {
@@ -76,8 +74,7 @@ public:
         if (exclusive)
             m_writeLock.unlock();
         m_writeCount--;
-        if (m_notify)
-            m_cv.notify_all();
+        m_cv.notify_all();
     }
 
     void downgradeWrite(bool exclusive = true) {
@@ -85,10 +82,6 @@ public:
         acquireRead();
     }
 
-    void setNotify(bool notify) {
-        m_notify = notify;
-    }
-
     bool hasReader() {
         return m_readCount > 0;
     }

src/redis-cli.c

@@ -3293,8 +3293,8 @@ static redisReply *clusterManagerMigrateKeysInReply(clusterManagerNode *source,
     argv_len = zcalloc(argc * sizeof(size_t), MALLOC_LOCAL);
     char portstr[255];
     char timeoutstr[255];
-    snprintf(portstr, sizeof(portstr), "%d", target->port);
-    snprintf(timeoutstr, sizeof(timeoutstr), "%d", timeout);
+    snprintf(portstr, 10, "%d", target->port);
+    snprintf(timeoutstr, 10, "%d", timeout);
     argv[0] = "MIGRATE";
     argv_len[0] = 7;
     argv[1] = target->ip;
@@ -6825,7 +6825,7 @@ static long getLongInfoField(char *info, char *field) {
 
 /* Convert number of bytes into a human readable string of the form:
  * 100B, 2G, 100M, 4K, and so forth. */
-void bytesToHuman(char *s, long long n, size_t bufsize) {
+void bytesToHuman(char *s, long long n) {
     double d;
 
     if (n < 0) {
@@ -6835,17 +6835,17 @@ void bytesToHuman(char *s, long long n, size_t bufsize) {
     }
     if (n < 1024) {
         /* Bytes */
-        snprintf(s,bufsize,"%lldB",n);
+        snprintf(s,256,"%lldB",n);
         return;
     } else if (n < (1024*1024)) {
         d = (double)n/(1024);
-        snprintf(s,bufsize,"%.2fK",d);
+        snprintf(s,256,"%.2fK",d);
     } else if (n < (1024LL*1024*1024)) {
         d = (double)n/(1024*1024);
-        snprintf(s,bufsize,"%.2fM",d);
+        snprintf(s,256,"%.2fM",d);
     } else if (n < (1024LL*1024*1024*1024)) {
         d = (double)n/(1024LL*1024*1024);
-        snprintf(s,bufsize,"%.2fG",d);
+        snprintf(s,256,"%.2fG",d);
     }
 }
 
@@ -6875,38 +6875,38 @@ static void statMode(void) {
         for (j = 0; j < 20; j++) {
             long k;
 
-            snprintf(buf,sizeof(buf),"db%d:keys",j);
+            snprintf(buf,64,"db%d:keys",j);
             k = getLongInfoField(reply->str,buf);
             if (k == LONG_MIN) continue;
             aux += k;
         }
-        snprintf(buf,sizeof(buf),"%ld",aux);
+        snprintf(buf,64,"%ld",aux);
         printf("%-11s",buf);
 
         /* Used memory */
         aux = getLongInfoField(reply->str,"used_memory");
-        bytesToHuman(buf,aux,sizeof(buf));
+        bytesToHuman(buf,aux);
         printf("%-8s",buf);
 
         /* Clients */
         aux = getLongInfoField(reply->str,"connected_clients");
-        snprintf(buf,sizeof(buf),"%ld",aux);
+        snprintf(buf,64,"%ld",aux);
         printf(" %-8s",buf);
 
         /* Blocked (BLPOPPING) Clients */
         aux = getLongInfoField(reply->str,"blocked_clients");
-        snprintf(buf,sizeof(buf),"%ld",aux);
+        snprintf(buf,64,"%ld",aux);
         printf("%-8s",buf);
 
         /* Requests */
         aux = getLongInfoField(reply->str,"total_commands_processed");
-        snprintf(buf,sizeof(buf),"%ld (+%ld)",aux,requests == 0 ? 0 : aux-requests);
+        snprintf(buf,64,"%ld (+%ld)",aux,requests == 0 ? 0 : aux-requests);
         printf("%-19s",buf);
         requests = aux;
 
         /* Connections */
         aux = getLongInfoField(reply->str,"total_connections_received");
-        snprintf(buf,sizeof(buf),"%ld",aux);
+        snprintf(buf,64,"%ld",aux);
         printf(" %-12s",buf);
 
         /* Children */

src/redismodule.h

@@ -326,7 +326,6 @@ static const RedisModuleEvent
 #define REDISMODULE_SUBEVENT_LOADING_ENDED 3
 #define REDISMODULE_SUBEVENT_LOADING_FAILED 4
 #define _REDISMODULE_SUBEVENT_LOADING_NEXT 5
-#define REDISMODULE_SUBEVENT_LOADING_FLASH_START 6
 
 #define REDISMODULE_SUBEVENT_CLIENT_CHANGE_CONNECTED 0
 #define REDISMODULE_SUBEVENT_CLIENT_CHANGE_DISCONNECTED 1

src/replication.cpp

@@ -3736,7 +3736,7 @@ retry_connect:
         while(maxtries--) {
             auto dt = std::chrono::system_clock::now().time_since_epoch();
             auto dtMillisecond = std::chrono::duration_cast<std::chrono::milliseconds>(dt);
-            snprintf(tmpfile,sizeof(tmpfile),
+            snprintf(tmpfile,256,
                 "temp-%d.%ld.rdb",(int)dtMillisecond.count(),(long int)getpid());
             dfd = open(tmpfile,O_CREAT|O_WRONLY|O_EXCL,0644);
             if (dfd != -1) break;
@@ -3797,11 +3797,9 @@ int connectWithMaster(redisMaster *mi) {
     connSetPrivateData(mi->repl_transfer_s, mi);
     if (connConnect(mi->repl_transfer_s, mi->masterhost, mi->masterport,
                 NET_FIRST_BIND_ADDR, syncWithMaster) == C_ERR) {
-        const char *err = "Unknown Error";
-        if (mi->repl_transfer_s->last_errno != 0)
-            err = connGetLastError(mi->repl_transfer_s);
-        int sev = g_pserver->enable_multimaster ? LL_NOTICE : LL_WARNING;   // with multimaster its not unheard of to intentionally have downed masters
-        serverLog(sev, "Unable to connect to MASTER: %s", err);
+        int sev = g_pserver->enable_multimaster ? LL_NOTICE : LL_WARNING;   // with multimaster its not unheard of to intentiallionall have downed masters
+        serverLog(sev,"Unable to connect to MASTER: %s",
+                connGetLastError(mi->repl_transfer_s));
         connClose(mi->repl_transfer_s);
         mi->repl_transfer_s = NULL;
         return C_ERR;

src/scripting.cpp

@@ -1264,9 +1264,6 @@ void scriptingInit(int setup) {
 
     /* Finally set the table as 'redis' global var. */
     lua_setglobal(lua,"redis");
-    /* Set table as 'keydb' global var as well */
-    lua_getglobal(lua,"redis");
-    lua_setglobal(lua,"keydb");
 
     /* Replace math.random and math.randomseed with our implementations. */
     lua_getglobal(lua,"math");

src/server.cpp

@@ -2219,7 +2219,6 @@ void checkChildrenDone(void) {
             g_pserver->rdbThreadVars.fRdbThreadCancel = false;
             g_pserver->rdbThreadVars.fDone = false;
             if (exitcode == 0) receiveChildInfo();
-            closeChildInfoPipe();
         }
     }
     else if ((pid = waitpid(-1, &statloc, WNOHANG)) != 0) {
@@ -4069,6 +4068,12 @@ void initServer(void) {
         }
     }
 
+    /* We have to initialize storage providers after the cluster has been initialized */
+    for (int idb = 0; idb < cserver.dbnum; ++idb)
+    {
+        g_pserver->db[idb]->storageProviderInitialize();
+    }
+
     saveMasterStatusToStorage(false); // eliminate the repl-offset field
     
     /* Initialize ACL default password if it exists */
@@ -4081,15 +4086,6 @@ void initServer(void) {
  * Thread Local Storage initialization collides with dlopen call.
  * see: https://sourceware.org/bugzilla/show_bug.cgi?id=19329 */
 void InitServerLast() {
-
-    /* We have to initialize storage providers after the cluster has been initialized */
-    moduleFireServerEvent(REDISMODULE_EVENT_LOADING, REDISMODULE_SUBEVENT_LOADING_FLASH_START, NULL);
-    for (int idb = 0; idb < cserver.dbnum; ++idb)
-    {
-        g_pserver->db[idb]->storageProviderInitialize();
-    }
-    moduleFireServerEvent(REDISMODULE_EVENT_LOADING, REDISMODULE_SUBEVENT_LOADING_ENDED, NULL);
-
     bioInit();
     set_jemalloc_bg_thread(cserver.jemalloc_bg_thread);
     g_pserver->initial_memory_usage = zmalloc_used_memory();
@@ -5472,30 +5468,30 @@ NULL
 
 /* Convert an amount of bytes into a human readable string in the form
  * of 100B, 2G, 100M, 4K, and so forth. */
-void bytesToHuman(char *s, unsigned long long n, size_t bufsize) {
+void bytesToHuman(char *s, unsigned long long n) {
     double d;
 
     if (n < 1024) {
         /* Bytes */
-        snprintf(s,bufsize,"%lluB",n);
+        snprintf(s,256,"%lluB",n);
     } else if (n < (1024*1024)) {
         d = (double)n/(1024);
-        snprintf(s,bufsize,"%.2fK",d);
+        snprintf(s,256,"%.2fK",d);
     } else if (n < (1024LL*1024*1024)) {
         d = (double)n/(1024*1024);
-        snprintf(s,bufsize,"%.2fM",d);
+        snprintf(s,256,"%.2fM",d);
     } else if (n < (1024LL*1024*1024*1024)) {
         d = (double)n/(1024LL*1024*1024);
-        snprintf(s,bufsize,"%.2fG",d);
+        snprintf(s,256,"%.2fG",d);
     } else if (n < (1024LL*1024*1024*1024*1024)) {
         d = (double)n/(1024LL*1024*1024*1024);
-        snprintf(s,bufsize,"%.2fT",d);
+        snprintf(s,256,"%.2fT",d);
     } else if (n < (1024LL*1024*1024*1024*1024*1024)) {
         d = (double)n/(1024LL*1024*1024*1024*1024);
-        snprintf(s,bufsize,"%.2fP",d);
+        snprintf(s,256,"%.2fP",d);
     } else {
         /* Let's hope we never need this */
-        snprintf(s,bufsize,"%lluB",n);
+        snprintf(s,256,"%lluB",n);
     }
 }
 
@@ -5671,13 +5667,13 @@ sds genRedisInfoString(const char *section) {
         if (zmalloc_used > g_pserver->stat_peak_memory)
             g_pserver->stat_peak_memory = zmalloc_used;
 
-        bytesToHuman(hmem,zmalloc_used,sizeof(hmem));
-        bytesToHuman(peak_hmem,g_pserver->stat_peak_memory,sizeof(peak_hmem));
-        bytesToHuman(total_system_hmem,total_system_mem,sizeof(total_system_hmem));
-        bytesToHuman(used_memory_lua_hmem,memory_lua,sizeof(used_memory_lua_hmem));
-        bytesToHuman(used_memory_scripts_hmem,mh->lua_caches,sizeof(used_memory_scripts_hmem));
-        bytesToHuman(used_memory_rss_hmem,g_pserver->cron_malloc_stats.process_rss,sizeof(used_memory_rss_hmem));
-        bytesToHuman(maxmemory_hmem,g_pserver->maxmemory,sizeof(maxmemory_hmem));
+        bytesToHuman(hmem,zmalloc_used);
+        bytesToHuman(peak_hmem,g_pserver->stat_peak_memory);
+        bytesToHuman(total_system_hmem,total_system_mem);
+        bytesToHuman(used_memory_lua_hmem,memory_lua);
+        bytesToHuman(used_memory_scripts_hmem,mh->lua_caches);
+        bytesToHuman(used_memory_rss_hmem,g_pserver->cron_malloc_stats.process_rss);
+        bytesToHuman(maxmemory_hmem,g_pserver->maxmemory);
 
         if (sections++) info = sdscat(info,"\r\n");
         info = sdscatprintf(info,
@@ -6564,8 +6560,7 @@ void usage(void) {
 
 void redisAsciiArt(void) {
 #include "asciilogo.h"
-    size_t bufsize = 1024*16;
-    char *buf = (char*)zmalloc(bufsize, MALLOC_LOCAL);
+    char *buf = (char*)zmalloc(1024*16, MALLOC_LOCAL);
     const char *mode;
 
     if (g_pserver->cluster_enabled) mode = "cluster";
@@ -6587,7 +6582,7 @@ void redisAsciiArt(void) {
         );
     } else {
         sds motd = fetchMOTD(true, cserver.enable_motd);
-        snprintf(buf,bufsize,ascii_logo,
+        snprintf(buf,1024*16,ascii_logo,
             KEYDB_REAL_VERSION,
             redisGitSHA1(),
             strtol(redisGitDirty(),NULL,10) > 0,
@@ -6890,7 +6885,6 @@ int redisFork(int purpose) {
     latencyAddSampleIfNeeded("fork-lock",(ustime()-startWriteLock)/1000);
     if ((childpid = fork()) == 0) {
         /* Child */
-        aeForkLockInChild();
         aeReleaseForkLock();
         g_pserver->in_fork_child = purpose;
         setOOMScoreAdj(CONFIG_OOM_BGCHILD);

src/server.h

@@ -1204,12 +1204,12 @@ public:
     void disableKeyCache();
     bool keycacheIsEnabled();
 
-    void prefetchKeysAsync(client *c, struct parsed_command &command);
+    bool prefetchKeysAsync(client *c, struct parsed_command &command, bool fExecOK);
 
     bool FSnapshot() const { return m_spdbSnapshotHOLDER != nullptr; }
 
     std::unique_ptr<const StorageCache> CloneStorageCache() { return std::unique_ptr<const StorageCache>(m_spstorage->clone()); }
-    void bulkDirectStorageInsert(char **rgKeys, size_t *rgcbKeys, char **rgVals, size_t *rgcbVals, size_t celem);
+    void bulkStorageInsert(char **rgKeys, size_t *rgcbKeys, char **rgVals, size_t *rgcbVals, size_t celem);
 
     dict_iter find_cached_threadsafe(const char *key) const;
 
@@ -1217,7 +1217,7 @@ protected:
     uint64_t m_mvccCheckpoint = 0;
 
 private:
-    static sds serializeChange(redisDbPersistentData *db, const char *key);
+    static void serializeAndStoreChange(StorageCache *storage, redisDbPersistentData *db, const char *key, bool fUpdate);
 
     void ensure(const char *key);
     void ensure(const char *key, dictEntry **de);
@@ -1370,7 +1370,7 @@ struct redisDb : public redisDbPersistentDataSnapshot
     using redisDbPersistentData::FRehashing;
     using redisDbPersistentData::FTrackingChanges;
     using redisDbPersistentData::CloneStorageCache;
-    using redisDbPersistentData::bulkDirectStorageInsert;
+    using redisDbPersistentData::bulkStorageInsert;
 
 public:
     const redisDbPersistentDataSnapshot *createSnapshot(uint64_t mvccCheckpoint, bool fOptional) {
@@ -3894,13 +3894,13 @@ void incrementMvccTstamp();
 
 #if __GNUC__ >= 7 && !defined(NO_DEPRECATE_FREE)
  [[deprecated]]
-void *calloc(size_t count, size_t size) noexcept;
+void *calloc(size_t count, size_t size);
  [[deprecated]]
-void free(void *ptr) noexcept;
+void free(void *ptr);
  [[deprecated]]
-void *malloc(size_t size) noexcept;
+void *malloc(size_t size);
  [[deprecated]]
-void *realloc(void *ptr, size_t size) noexcept;
+void *realloc(void *ptr, size_t size);
 #endif
 
 /* Debugging stuff */

src/storage/rocksdb.cpp

@@ -43,9 +43,8 @@ void RocksDBStorageProvider::insert(const char *key, size_t cchKey, void *data,
         ++m_count;
 }
 
-void RocksDBStorageProvider::bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, char *rgfOverwrite, size_t celem)
+void RocksDBStorageProvider::bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, size_t celem)
 {
-    size_t coverwrites = 0;
     if (celem >= 16384) {
         rocksdb::Options options = DefaultRocksDBOptions();
         rocksdb::SstFileWriter sst_file_writer(rocksdb::EnvOptions(), options, options.comparator);
@@ -93,15 +92,8 @@ void RocksDBStorageProvider::bulkInsert(char **rgkeys, size_t *rgcbkeys, char **
         m_spdb->Write(WriteOptions(), spbatch.get());
     }
 
-    if (rgfOverwrite != nullptr) {
-        for (size_t ielem = 0; ielem < celem; ++ielem) {
-            if (rgfOverwrite[ielem])
-                ++coverwrites;
-        }
-    }
-
     std::unique_lock<fastlock> l(m_lock);
-    m_count += celem - coverwrites;
+    m_count += celem;
 }
 
 bool RocksDBStorageProvider::erase(const char *key, size_t cchKey)

src/storage/rocksdb.h

@@ -38,7 +38,7 @@ public:
     virtual void beginWriteBatch() override;
     virtual void endWriteBatch() override;
 
-    virtual void bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, char *rgfOverwrite, size_t celem) override;
+    virtual void bulkInsert(char **rgkeys, size_t *rgcbkeys, char **rgvals, size_t *rgcbvals, size_t celem) override;
 
     virtual void batch_lock() override;
     virtual void batch_unlock() override;

src/tls.cpp

@@ -616,9 +616,8 @@ bool tlsValidateCertificateName(tls_connection* conn){
     /* If neither the CN nor the SANs match, update the SSL error and return false */
     conn->c.last_errno = 0;
     if (conn->ssl_error) zfree(conn->ssl_error);
-    size_t bufsize = 512;
-    conn->ssl_error = (char*)zmalloc(bufsize);
-    snprintf(conn->ssl_error, bufsize, "Client CN (%s) and SANs not found in allowlist.", commonName);
+    conn->ssl_error = (char*)zmalloc(512);
+    snprintf(conn->ssl_error, 512, "Client CN (%s) and SANs not found in allowlist.", commonName);
     return false;
 }
 

src/ziplist.c

@@ -1704,17 +1704,17 @@ static unsigned char *createIntList() {
     unsigned char *zl = ziplistNew();
     char buf[32];
 
-    snprintf(buf, sizeof(buf), "100");
+    snprintf(buf, 32, "100");
     zl = ziplistPush(zl, (unsigned char*)buf, strlen(buf), ZIPLIST_TAIL);
-    snprintf(buf, sizeof(buf), "128000");
+    snprintf(buf, 32, "128000");
     zl = ziplistPush(zl, (unsigned char*)buf, strlen(buf), ZIPLIST_TAIL);
-    snprintf(buf, sizeof(buf), "-100");
+    snprintf(buf, 32, "-100");
     zl = ziplistPush(zl, (unsigned char*)buf, strlen(buf), ZIPLIST_HEAD);
-    snprintf(buf, sizeof(buf), "4294967296");
+    snprintf(buf, 32, "4294967296");
     zl = ziplistPush(zl, (unsigned char*)buf, strlen(buf), ZIPLIST_HEAD);
-    snprintf(buf, sizeof(buf), "non integer");
+    snprintf(buf, 32, "non integer");
     zl = ziplistPush(zl, (unsigned char*)buf, strlen(buf), ZIPLIST_TAIL);
-    snprintf(buf, sizeof(buf), "much much longer non integer");
+    snprintf(buf, 32, "much much longer non integer");
     zl = ziplistPush(zl, (unsigned char*)buf, strlen(buf), ZIPLIST_TAIL);
     return zl;
 }
@@ -2228,7 +2228,7 @@ int ziplistTest(int argc, char **argv, int accurate) {
         char buf[32];
         int i,len;
         for (i = 0; i < 1000; i++) {
-            len = snprintf(buf,sizeof(buf),"%d",i);
+            len = snprintf(buf,32,"%d",i);
             zl = ziplistPush(zl,(unsigned char*)buf,len,ZIPLIST_TAIL);
         }
         for (i = 0; i < 1000; i++) {
@@ -2375,13 +2375,13 @@ int ziplistTest(int argc, char **argv, int accurate) {
                 } else {
                     switch(rand() % 3) {
                     case 0:
-                        buflen = snprintf(buf,sizeof(buf),"%lld",(0LL + rand()) >> 20);
+                        buflen = snprintf(buf,1024,"%lld",(0LL + rand()) >> 20);
                         break;
                     case 1:
-                        buflen = snprintf(buf,sizeof(buf),"%lld",(0LL + rand()));
+                        buflen = snprintf(buf,1024,"%lld",(0LL + rand()));
                         break;
                     case 2:
-                        buflen = snprintf(buf,sizeof(buf),"%lld",(0LL + rand()) << 20);
+                        buflen = snprintf(buf,1024,"%lld",(0LL + rand()) << 20);
                         break;
                     default:
                         assert(NULL);
@@ -2410,7 +2410,7 @@ int ziplistTest(int argc, char **argv, int accurate) {
 
                 assert(ziplistGet(p,&sstr,&slen,&sval));
                 if (sstr == NULL) {
-                    buflen = snprintf(buf,sizeof(buf),"%lld",sval);
+                    buflen = snprintf(buf,1024,"%lld",sval);
                 } else {
                     buflen = slen;
                     memcpy(buf,sstr,buflen);

src/zmalloc.cpp

@@ -80,12 +80,12 @@ static_assert((PREFIX_SIZE % 16) == 0, "Our prefix must be modulo 16-bytes or ou
 #define realloc(ptr,size, type) tc_realloc(ptr,size)
 #define free(ptr) tc_free(ptr)
 #elif defined(USE_JEMALLOC)
-#define malloc(size, type) malloc(size)
-#define calloc(count,size,type) calloc(count,size)
-#define realloc(ptr,size,type) realloc(ptr,size)
-#define free(ptr) free(ptr)
-#define mallocx(size,flags) mallocx(size,flags)
-#define dallocx(ptr,flags) dallocx(ptr,flags)
+#define malloc(size, type) je_malloc(size)
+#define calloc(count,size,type) je_calloc(count,size)
+#define realloc(ptr,size,type) je_realloc(ptr,size)
+#define free(ptr) je_free(ptr)
+#define mallocx(size,flags) je_mallocx(size,flags)
+#define dallocx(ptr,flags) je_dallocx(ptr,flags)
 #else
 #define malloc(size, type) malloc(size)
 #define calloc(count,size,type) calloc(count,size)
@@ -370,7 +370,7 @@ size_t zmalloc_get_rss(void) {
     int fd, count;
     char *p, *x;
 
-    snprintf(filename,sizeof(filename),"/proc/%ld/stat",(long) getpid());
+    snprintf(filename,256,"/proc/%ld/stat",(long) getpid());
     if ((fd = open(filename,O_RDONLY)) == -1) return 0;
     if (read(fd,buf,4096) <= 0) {
         close(fd);
@@ -462,7 +462,7 @@ size_t zmalloc_get_rss(void) {
     char filename[256];
     int fd;
 
-    snprintf(filename,sizeof(filename),"/proc/%ld/psinfo",(long) getpid());
+    snprintf(filename,256,"/proc/%ld/psinfo",(long) getpid());
 
     if ((fd = open(filename,O_RDONLY)) == -1) return 0;
     if (ioctl(fd, PIOCPSINFO, &info) == -1) {
@@ -494,17 +494,17 @@ int zmalloc_get_allocator_info(size_t *allocated,
     *allocated = *resident = *active = 0;
     /* Update the statistics cached by mallctl. */
     sz = sizeof(epoch);
-    mallctl("epoch", &epoch, &sz, &epoch, sz);
+    je_mallctl("epoch", &epoch, &sz, &epoch, sz);
     sz = sizeof(size_t);
     /* Unlike RSS, this does not include RSS from shared libraries and other non
      * heap mappings. */
-    mallctl("stats.resident", resident, &sz, NULL, 0);
+    je_mallctl("stats.resident", resident, &sz, NULL, 0);
     /* Unlike resident, this doesn't not include the pages jemalloc reserves
      * for re-use (purge will clean that). */
-    mallctl("stats.active", active, &sz, NULL, 0);
+    je_mallctl("stats.active", active, &sz, NULL, 0);
     /* Unlike zmalloc_used_memory, this matches the stats.resident by taking
      * into account all allocations done by this process (not only zmalloc). */
-    mallctl("stats.allocated", allocated, &sz, NULL, 0);
+    je_mallctl("stats.allocated", allocated, &sz, NULL, 0);
     return 1;
 }
 
@@ -512,7 +512,7 @@ void set_jemalloc_bg_thread(int enable) {
     /* let jemalloc do purging asynchronously, required when there's no traffic 
      * after flushdb */
     char val = !!enable;
-    mallctl("background_thread", NULL, 0, &val, 1);
+    je_mallctl("background_thread", NULL, 0, &val, 1);
 }
 
 int jemalloc_purge() {
@@ -520,9 +520,9 @@ int jemalloc_purge() {
     char tmp[32];
     unsigned narenas = 0;
     size_t sz = sizeof(unsigned);
-    if (!mallctl("arenas.narenas", &narenas, &sz, NULL, 0)) {
-        snprintf(tmp, sizeof(tmp), "arena.%d.purge", narenas);
-        if (!mallctl(tmp, NULL, 0, NULL, 0))
+    if (!je_mallctl("arenas.narenas", &narenas, &sz, NULL, 0)) {
+        snprintf(tmp, 32, "arena.%d.purge", narenas);
+        if (!je_mallctl(tmp, NULL, 0, NULL, 0))
             return 0;
     }
     return -1;

src/zmalloc.h

@@ -55,7 +55,7 @@
 #include <jemalloc/jemalloc.h>
 #if (JEMALLOC_VERSION_MAJOR == 2 && JEMALLOC_VERSION_MINOR >= 1) || (JEMALLOC_VERSION_MAJOR > 2)
 #define HAVE_MALLOC_SIZE 1
-#define zmalloc_size(p) malloc_usable_size(p)
+#define zmalloc_size(p) je_malloc_usable_size(p)
 #else
 #error "Newer version of jemalloc required"
 #endif

tests/modules/Makefile

@@ -39,8 +39,7 @@ TEST_MODULES = \
     defragtest.so \
     hash.so \
     zset.so \
-    stream.so \
-    load.so
+    stream.so
 
 
 .PHONY: all

tests/modules/hooks.c

@@ -212,7 +212,6 @@ void loadingCallback(RedisModuleCtx *ctx, RedisModuleEvent e, uint64_t sub, void
         case REDISMODULE_SUBEVENT_LOADING_RDB_START: keyname = "loading-rdb-start"; break;
         case REDISMODULE_SUBEVENT_LOADING_AOF_START: keyname = "loading-aof-start"; break;
         case REDISMODULE_SUBEVENT_LOADING_REPL_START: keyname = "loading-repl-start"; break;
-        case REDISMODULE_SUBEVENT_LOADING_FLASH_START: keyname = "loading-flash-start"; break;
         case REDISMODULE_SUBEVENT_LOADING_ENDED: keyname = "loading-end"; break;
         case REDISMODULE_SUBEVENT_LOADING_FAILED: keyname = "loading-failed"; break;
     }

tests/modules/load.c

@@ -1,94 +0,0 @@
-/* Server hooks API example
- *
- * -----------------------------------------------------------------------------
- *
- * Copyright (c) 2019, Salvatore Sanfilippo <antirez at gmail dot com>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *   * Redistributions of source code must retain the above copyright notice,
- *     this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- *   * Neither the name of Redis nor the names of its contributors may be used
- *     to endorse or promote products derived from this software without
- *     specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#define REDISMODULE_EXPERIMENTAL_API
-#include "redismodule.h"
-
-size_t count, finalCount;
-
-/* Client state change callback. */
-void loadCallback(RedisModuleCtx *ctx, RedisModuleEvent e, uint64_t sub, void *data) {
-    REDISMODULE_NOT_USED(ctx);
-    REDISMODULE_NOT_USED(e);
-    REDISMODULE_NOT_USED(data);
-
-    if (sub == REDISMODULE_SUBEVENT_LOADING_FLASH_START || sub == REDISMODULE_SUBEVENT_LOADING_RDB_START || sub == REDISMODULE_SUBEVENT_LOADING_AOF_START || sub == REDISMODULE_SUBEVENT_LOADING_REPL_START) {
-        count = 0;
-        finalCount = 0;
-    } else if (sub == REDISMODULE_SUBEVENT_LOADING_ENDED) {
-        finalCount = count;
-    }
-}
-
-int loadKeyCallback(RedisModuleCtx *ctx, int type,  const char *event, RedisModuleString *key) {
-    REDISMODULE_NOT_USED(ctx);
-    REDISMODULE_NOT_USED(type);
-    REDISMODULE_NOT_USED(event);
-
-    const char *keyname = RedisModule_StringPtrLen(key, NULL);
-
-    RedisModule_Log(ctx, REDISMODULE_LOGLEVEL_NOTICE, "Loaded key: %s", keyname);
-
-    count++;
-    return 0;
-}
-
-int LoadCount_RedisCommand(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
-    REDISMODULE_NOT_USED(argv);
-    RedisModule_AutoMemory(ctx); /* Use automatic memory management. */
-
-    if (argc != 1) return RedisModule_WrongArity(ctx);
-
-    RedisModule_ReplyWithLongLong(ctx, finalCount);
-
-    return REDISMODULE_OK;
-}
-
-/* This function must be present on each Redis module. It is used in order to
- * register the commands into the Redis server. */
-int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
-    REDISMODULE_NOT_USED(argv);
-    REDISMODULE_NOT_USED(argc);
-
-    if (RedisModule_Init(ctx,"load",1,REDISMODULE_APIVER_1)
-        == REDISMODULE_ERR) return REDISMODULE_ERR;
-
-    RedisModule_SubscribeToServerEvent(ctx,
-        RedisModuleEvent_Loading, loadCallback);
-    RedisModule_SubscribeToKeyspaceEvents(ctx,
-        REDISMODULE_NOTIFY_LOADED, loadKeyCallback);
-
-    if (RedisModule_CreateCommand(ctx, "load.count",
-        LoadCount_RedisCommand,"readonly",1,1,1) == REDISMODULE_ERR)
-        return REDISMODULE_ERR;
-    return REDISMODULE_OK;
-}

tests/unit/introspection.tcl

@@ -162,16 +162,15 @@ start_server {tags {"introspection"}} {
             aof_rewrite_cpulist
             time-thread-priority
             bgsave_cpulist
-	    storage-cache-mode
-	    storage-provider-options
-	    use-fork
+	        storage-cache-mode
+	        storage-provider-options
+	        use-fork
             multi-master
             active-replica
             bind
             set-proc-title
             repl-backlog-disk-reserve
 	    tls-allowlist
-            db-s3-object
         }
 
         if {!$::tls} {

tests/unit/moduleapi/load.tcl

@@ -1,15 +0,0 @@
-set testmodule [file normalize tests/modules/load.so]
-
-if {$::flash_enabled} {
-    start_server [list tags [list "modules"] overrides [list storage-provider {flash ./rocks.db.master} databases 256 loadmodule $testmodule]] {
-        test "Module is notified of keys loaded from flash" {
-            r flushall
-            r set foo bar
-            r set bar foo
-            r set foobar barfoo
-            assert_equal [r load.count] 0
-            r debug reload
-            assert_equal [r load.count] 3
-        }
-    }
-}

tests/unit/scripting.tcl

@@ -43,15 +43,6 @@ start_server {tags {"scripting"}} {
         r eval {return redis.call('get',KEYS[1])} 1 mykey
     } {myval}
 
-    test {EVAL - keys command works? } {
-        r eval {return redis.call('keys', 'test')} 0
-    }
-
-    test {EVAL - KeyDB global works } {
-        r eval {return keydb.call('get', KEYS[1])} 1 mykey
-        assert_equal [r eval {return redis.call('get',KEYS[1])} 1 mykey] [r eval {return keydb.call('get', KEYS[1])} 1 mykey]
-    }
-
     test {EVALSHA - Can we call a SHA1 if already defined?} {
         r evalsha fd758d1589d044dd850a6f05d52f2eefd27f033f 1 mykey
     } {myval}