More fixes

src/db.cpp

@@ -3376,10 +3376,10 @@ void redisDbPersistentData::prefetchKeysFlash(std::unordered_set<client*> &setc)
             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
+                break; // Bad command? It's not for us to judge, just bail
 
             if (command.argc < std::abs(cmd->arity))
-                return; // Invalid number of args
+                break; // Invalid number of args
 
             int numkeys = getKeysFromCommand(cmd, command.argv, command.argc, &result);
             bool fQueued = false;

src/storage/rocksdb.cpp

@@ -288,8 +288,10 @@ StorageToken *RocksDBStorageProvider::begin_retrieve(struct aeEventLoop *el, aeP
     for (size_t ikey = 0; ikey < ckey; ++ikey) {
         tok->mapkeydata.insert(std::make_pair(std::string(rgkey[ikey], sdslen(rgkey[ikey])), nullptr));
     }
-
-    (*m_pfactory->m_wqueue)->AddWorkFunction([this, el, callback, tok]{
+
+    auto opts = ReadOptions();
+    opts.async_io = true;
+    (*m_pfactory->m_wqueue)->AddWorkFunction([this, el, callback, tok, opts]{
         std::vector<std::string> veckeysStr;
         std::vector<rocksdb::Slice> veckeys;
         std::vector<rocksdb::PinnableSlice> vecvals;