MemTableOptions

Summary: removed reference to options in WriteBatch and DBImpl::Get()

Test Plan: make all check

Reviewers: yhchiang, igor, sdong

Reviewed By: sdong

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D23049

db/column_family.cc

@@ -383,7 +383,8 @@ void ColumnFamilyData::CreateNewMemtable() {
   if (mem_ != nullptr) {
     delete mem_->Unref();
   }
-  mem_ = new MemTable(internal_comparator_, options_);
+  mem_ = new MemTable(internal_comparator_, ioptions_,
+                      MemTableOptions(options_));
   mem_->Ref();
 }
 

db/db_impl.cc

@@ -3434,10 +3434,10 @@ Status DBImpl::GetImpl(const ReadOptions& options,
   LookupKey lkey(key, snapshot);
   PERF_TIMER_STOP(get_snapshot_time);
 
-  if (sv->mem->Get(lkey, value, &s, merge_context, *cfd->options())) {
+  if (sv->mem->Get(lkey, value, &s, merge_context)) {
     // Done
     RecordTick(stats_, MEMTABLE_HIT);
-  } else if (sv->imm->Get(lkey, value, &s, merge_context, *cfd->options())) {
+  } else if (sv->imm->Get(lkey, value, &s, merge_context)) {
     // Done
     RecordTick(stats_, MEMTABLE_HIT);
   } else {
@@ -3522,12 +3522,9 @@ std::vector<Status> DBImpl::MultiGet(
     assert(mgd_iter != multiget_cf_data.end());
     auto mgd = mgd_iter->second;
     auto super_version = mgd->super_version;
-    auto cfd = mgd->cfd;
-    if (super_version->mem->Get(lkey, value, &s, merge_context,
-                                *cfd->options())) {
+    if (super_version->mem->Get(lkey, value, &s, merge_context)) {
       // Done
-    } else if (super_version->imm->Get(lkey, value, &s, merge_context,
-                                       *cfd->options())) {
+    } else if (super_version->imm->Get(lkey, value, &s, merge_context)) {
       // Done
     } else {
       super_version->current->Get(options, lkey, value, &s, &merge_context);
@@ -4294,7 +4291,9 @@ Status DBImpl::SetNewMemtableAndNewLogFile(ColumnFamilyData* cfd,
     }
 
     if (s.ok()) {
-      new_mem = new MemTable(cfd->internal_comparator(), *cfd->options());
+      new_mem = new MemTable(cfd->internal_comparator(),
+                             *cfd->ioptions(),
+                             MemTableOptions(*cfd->options()));
       new_superversion = new SuperVersion();
     }
   }

db/db_impl_readonly.cc

@@ -41,9 +41,9 @@
 
 namespace rocksdb {
 
-DBImplReadOnly::DBImplReadOnly(const DBOptions& options,
+DBImplReadOnly::DBImplReadOnly(const DBOptions& db_options,
                                const std::string& dbname)
-    : DBImpl(options, dbname) {
+    : DBImpl(db_options, dbname) {
   Log(db_options_.info_log, "Opening the db in read only mode");
 }
 
@@ -51,7 +51,7 @@ DBImplReadOnly::~DBImplReadOnly() {
 }
 
 // Implementations of the DB interface
-Status DBImplReadOnly::Get(const ReadOptions& options,
+Status DBImplReadOnly::Get(const ReadOptions& read_options,
                            ColumnFamilyHandle* column_family, const Slice& key,
                            std::string* value) {
   Status s;
@@ -61,10 +61,9 @@ Status DBImplReadOnly::Get(const ReadOptions& options,
   SuperVersion* super_version = cfd->GetSuperVersion();
   MergeContext merge_context;
   LookupKey lkey(key, snapshot);
-  if (super_version->mem->Get(lkey, value, &s, merge_context,
-                              *cfd->options())) {
+  if (super_version->mem->Get(lkey, value, &s, merge_context)) {
   } else {
-    super_version->current->Get(options, lkey, value, &s, &merge_context);
+    super_version->current->Get(read_options, lkey, value, &s, &merge_context);
   }
   return s;
 }

db/memtable.cc

@@ -31,35 +31,51 @@
 
 namespace rocksdb {
 
-MemTable::MemTable(const InternalKeyComparator& cmp, const Options& options)
+MemTableOptions::MemTableOptions(const Options& options)
+  : write_buffer_size(options.write_buffer_size),
+    arena_block_size(options.arena_block_size),
+    memtable_prefix_bloom_bits(options.memtable_prefix_bloom_bits),
+    memtable_prefix_bloom_probes(options.memtable_prefix_bloom_probes),
+    memtable_prefix_bloom_huge_page_tlb_size(
+        options.memtable_prefix_bloom_huge_page_tlb_size),
+    inplace_update_support(options.inplace_update_support),
+    inplace_update_num_locks(options.inplace_update_num_locks),
+    inplace_callback(options.inplace_callback),
+    max_successive_merges(options.max_successive_merges),
+    filter_deletes(options.filter_deletes) {}
+
+MemTable::MemTable(const InternalKeyComparator& cmp,
+                   const ImmutableCFOptions& ioptions,
+                   const MemTableOptions& moptions)
     : comparator_(cmp),
+      ioptions_(ioptions),
+      moptions_(moptions),
       refs_(0),
-      kArenaBlockSize(OptimizeBlockSize(options.arena_block_size)),
-      kWriteBufferSize(options.write_buffer_size),
-      arena_(options.arena_block_size),
-      table_(options.memtable_factory->CreateMemTableRep(
-          comparator_, &arena_, options.prefix_extractor.get(),
-          options.info_log.get())),
+      kArenaBlockSize(OptimizeBlockSize(moptions.arena_block_size)),
+      arena_(moptions.arena_block_size),
+      table_(ioptions.memtable_factory->CreateMemTableRep(
+          comparator_, &arena_, ioptions.prefix_extractor,
+          ioptions.info_log)),
       num_entries_(0),
       flush_in_progress_(false),
       flush_completed_(false),
       file_number_(0),
       first_seqno_(0),
       mem_next_logfile_number_(0),
-      locks_(options.inplace_update_support ? options.inplace_update_num_locks
+      locks_(moptions.inplace_update_support ? moptions.inplace_update_num_locks
                                              : 0),
-      prefix_extractor_(options.prefix_extractor.get()),
+      prefix_extractor_(ioptions.prefix_extractor),
       should_flush_(ShouldFlushNow()) {
   // if should_flush_ == true without an entry inserted, something must have
   // gone wrong already.
   assert(!should_flush_);
-  if (prefix_extractor_ && options.memtable_prefix_bloom_bits > 0) {
+  if (prefix_extractor_ && moptions.memtable_prefix_bloom_bits > 0) {
     prefix_bloom_.reset(new DynamicBloom(
         &arena_,
-        options.memtable_prefix_bloom_bits, options.bloom_locality,
-        options.memtable_prefix_bloom_probes, nullptr,
-        options.memtable_prefix_bloom_huge_page_tlb_size,
-        options.info_log.get()));
+        moptions.memtable_prefix_bloom_bits, ioptions.bloom_locality,
+        moptions.memtable_prefix_bloom_probes, nullptr,
+        moptions.memtable_prefix_bloom_huge_page_tlb_size,
+        ioptions.info_log));
   }
 }
 
@@ -97,14 +113,16 @@ bool MemTable::ShouldFlushNow() const {
   // if we can still allocate one more block without exceeding the
   // over-allocation ratio, then we should not flush.
   if (allocated_memory + kArenaBlockSize <
-      kWriteBufferSize + kArenaBlockSize * kAllowOverAllocationRatio) {
+      moptions_.write_buffer_size +
+      kArenaBlockSize * kAllowOverAllocationRatio) {
     return false;
   }
 
-  // if user keeps adding entries that exceeds kWriteBufferSize, we need to
-  // flush earlier even though we still have much available memory left.
-  if (allocated_memory >
-      kWriteBufferSize + kArenaBlockSize * kAllowOverAllocationRatio) {
+  // if user keeps adding entries that exceeds moptions.write_buffer_size,
+  // we need to flush earlier even though we still have much available
+  // memory left.
+  if (allocated_memory > moptions_.write_buffer_size +
+      kArenaBlockSize * kAllowOverAllocationRatio) {
     return true;
   }
 
@@ -175,12 +193,12 @@ const char* EncodeKey(std::string* scratch, const Slice& target) {
 class MemTableIterator: public Iterator {
  public:
   MemTableIterator(
-      const MemTable& mem, const ReadOptions& options, Arena* arena)
+      const MemTable& mem, const ReadOptions& read_options, Arena* arena)
       : bloom_(nullptr),
         prefix_extractor_(mem.prefix_extractor_),
         valid_(false),
         arena_mode_(arena != nullptr) {
-    if (prefix_extractor_ != nullptr && !options.total_order_seek) {
+    if (prefix_extractor_ != nullptr && !read_options.total_order_seek) {
       bloom_ = mem.prefix_bloom_.get();
       iter_ = mem.table_->GetDynamicPrefixIterator(arena);
     } else {
@@ -248,10 +266,10 @@ class MemTableIterator: public Iterator {
   void operator=(const MemTableIterator&);
 };
 
-Iterator* MemTable::NewIterator(const ReadOptions& options, Arena* arena) {
+Iterator* MemTable::NewIterator(const ReadOptions& read_options, Arena* arena) {
   assert(arena != nullptr);
   auto mem = arena->AllocateAligned(sizeof(MemTableIterator));
-  return new (mem) MemTableIterator(*this, options, arena);
+  return new (mem) MemTableIterator(*this, read_options, arena);
 }
 
 port::RWMutex* MemTable::GetLock(const Slice& key) {
@@ -412,7 +430,7 @@ static bool SaveValue(void* arg, const char* entry) {
 }
 
 bool MemTable::Get(const LookupKey& key, std::string* value, Status* s,
-                   MergeContext& merge_context, const Options& options) {
+                   MergeContext& merge_context) {
   // The sequence number is updated synchronously in version_set.h
   if (IsEmpty()) {
     // Avoiding recording stats for speed.
@@ -437,10 +455,10 @@ bool MemTable::Get(const LookupKey& key, std::string* value, Status* s,
     saver.status = s;
     saver.mem = this;
     saver.merge_context = &merge_context;
-    saver.merge_operator = options.merge_operator.get();
-    saver.logger = options.info_log.get();
-    saver.inplace_update_support = options.inplace_update_support;
-    saver.statistics = options.statistics.get();
+    saver.merge_operator = ioptions_.merge_operator;
+    saver.logger = ioptions_.info_log;
+    saver.inplace_update_support = moptions_.inplace_update_support;
+    saver.statistics = ioptions_.statistics;
     table_->Get(key, &saver, SaveValue);
   }
 
@@ -512,8 +530,7 @@ void MemTable::Update(SequenceNumber seq,
 
 bool MemTable::UpdateCallback(SequenceNumber seq,
                               const Slice& key,
-                              const Slice& delta,
-                              const Options& options) {
+                              const Slice& delta) {
   LookupKey lkey(key, seq);
   Slice memkey = lkey.memtable_key();
 
@@ -548,7 +565,7 @@ bool MemTable::UpdateCallback(SequenceNumber seq,
 
           std::string str_value;
           WriteLock wl(GetLock(lkey.user_key()));
-          auto status = options.inplace_callback(prev_buffer, &new_prev_size,
+          auto status = moptions_.inplace_callback(prev_buffer, &new_prev_size,
                                                    delta, &str_value);
           if (status == UpdateStatus::UPDATED_INPLACE) {
             // Value already updated by callback.
@@ -562,12 +579,12 @@ bool MemTable::UpdateCallback(SequenceNumber seq,
                 memcpy(p, prev_buffer, new_prev_size);
               }
             }
-            RecordTick(options.statistics.get(), NUMBER_KEYS_UPDATED);
+            RecordTick(ioptions_.statistics, NUMBER_KEYS_UPDATED);
             should_flush_ = ShouldFlushNow();
             return true;
           } else if (status == UpdateStatus::UPDATED) {
             Add(seq, kTypeValue, key, Slice(str_value));
-            RecordTick(options.statistics.get(), NUMBER_KEYS_WRITTEN);
+            RecordTick(ioptions_.statistics, NUMBER_KEYS_WRITTEN);
             should_flush_ = ShouldFlushNow();
             return true;
           } else if (status == UpdateStatus::UPDATE_FAILED) {

db/memtable.h

@@ -16,6 +16,7 @@
 #include "db/version_edit.h"
 #include "rocksdb/db.h"
 #include "rocksdb/memtablerep.h"
+#include "rocksdb/immutable_options.h"
 #include "util/arena.h"
 #include "util/dynamic_bloom.h"
 
@@ -26,6 +27,23 @@ class Mutex;
 class MemTableIterator;
 class MergeContext;
 
+struct MemTableOptions {
+  explicit MemTableOptions(const Options& options);
+  size_t write_buffer_size;
+  size_t arena_block_size;
+  uint32_t memtable_prefix_bloom_bits;
+  uint32_t memtable_prefix_bloom_probes;
+  size_t memtable_prefix_bloom_huge_page_tlb_size;
+  bool inplace_update_support;
+  size_t inplace_update_num_locks;
+  UpdateStatus (*inplace_callback)(char* existing_value,
+                                   uint32_t* existing_value_size,
+                                   Slice delta_value,
+                                   std::string* merged_value);
+  size_t max_successive_merges;
+  bool filter_deletes;
+};
+
 class MemTable {
  public:
   struct KeyComparator : public MemTableRep::KeyComparator {
@@ -40,7 +58,8 @@ class MemTable {
   // MemTables are reference counted.  The initial reference count
   // is zero and the caller must call Ref() at least once.
   explicit MemTable(const InternalKeyComparator& comparator,
-                    const Options& options);
+                    const ImmutableCFOptions& ioptions,
+                    const MemTableOptions& moptions);
 
   ~MemTable();
 
@@ -81,7 +100,7 @@ class MemTable {
   // arena: If not null, the arena needs to be used to allocate the Iterator.
   //        Calling ~Iterator of the iterator will destroy all the states but
   //        those allocated in arena.
-  Iterator* NewIterator(const ReadOptions& options, Arena* arena);
+  Iterator* NewIterator(const ReadOptions& read_options, Arena* arena);
 
   // Add an entry into memtable that maps key to value at the
   // specified sequence number and with the specified type.
@@ -99,7 +118,7 @@ class MemTable {
   //   store MergeInProgress in s, and return false.
   // Else, return false.
   bool Get(const LookupKey& key, std::string* value, Status* s,
-           MergeContext& merge_context, const Options& options);
+           MergeContext& merge_context);
 
   // Attempts to update the new_value inplace, else does normal Add
   // Pseudocode
@@ -123,8 +142,7 @@ class MemTable {
   //   else return false
   bool UpdateCallback(SequenceNumber seq,
                       const Slice& key,
-                      const Slice& delta,
-                      const Options& options);
+                      const Slice& delta);
 
   // Returns the number of successive merge entries starting from the newest
   // entry for the key up to the last non-merge entry or last entry for the
@@ -172,6 +190,9 @@ class MemTable {
 
   const Arena& TEST_GetArena() const { return arena_; }
 
+  const ImmutableCFOptions* GetImmutableOptions() const { return &ioptions_; }
+  const MemTableOptions* GetMemTableOptions() const { return &moptions_; }
+
  private:
   // Dynamically check if we can add more incoming entries.
   bool ShouldFlushNow() const;
@@ -181,9 +202,10 @@ class MemTable {
   friend class MemTableList;
 
   KeyComparator comparator_;
+  const ImmutableCFOptions& ioptions_;
+  const MemTableOptions moptions_;
   int refs_;
   const size_t kArenaBlockSize;
-  const size_t kWriteBufferSize;
   Arena arena_;
   unique_ptr<MemTableRep> table_;
 

db/memtable_list.cc

@@ -62,10 +62,9 @@ int MemTableList::size() const {
 // Return the most recent value found, if any.
 // Operands stores the list of merge operations to apply, so far.
 bool MemTableListVersion::Get(const LookupKey& key, std::string* value,
-                              Status* s, MergeContext& merge_context,
-                              const Options& options) {
+                              Status* s, MergeContext& merge_context) {
   for (auto& memtable : memlist_) {
-    if (memtable->Get(key, value, s, merge_context, options)) {
+    if (memtable->Get(key, value, s, merge_context)) {
       return true;
     }
   }

db/memtable_list.h

@@ -46,7 +46,7 @@ class MemTableListVersion {
   // Search all the memtables starting from the most recent one.
   // Return the most recent value found, if any.
   bool Get(const LookupKey& key, std::string* value, Status* s,
-           MergeContext& merge_context, const Options& options);
+           MergeContext& merge_context);
 
   void AddIterators(const ReadOptions& options,
                     std::vector<Iterator*>* iterator_list, Arena* arena);

db/repair.cc

@@ -219,7 +219,7 @@ class Repairer {
     std::string scratch;
     Slice record;
     WriteBatch batch;
-    MemTable* mem = new MemTable(icmp_, options_);
+    MemTable* mem = new MemTable(icmp_, ioptions_, MemTableOptions(options_));
     auto cf_mems_default = new ColumnFamilyMemTablesDefault(mem, &options_);
     mem->Ref();
     int counter = 0;

db/write_batch.cc

@@ -23,7 +23,6 @@
 //    data: uint8[len]
 
 #include "rocksdb/write_batch.h"
-#include "rocksdb/options.h"
 #include "rocksdb/merge_operator.h"
 #include "db/dbformat.h"
 #include "db/db_impl.h"
@@ -350,14 +349,15 @@ class MemTableInserter : public WriteBatch::Handler {
       return seek_status;
     }
     MemTable* mem = cf_mems_->GetMemTable();
-    const Options* options = cf_mems_->GetOptions();
-    if (!options->inplace_update_support) {
+    auto* ioptions = mem->GetImmutableOptions();
+    auto* moptions = mem->GetMemTableOptions();
+    if (!moptions->inplace_update_support) {
       mem->Add(sequence_, kTypeValue, key, value);
-    } else if (options->inplace_callback == nullptr) {
+    } else if (moptions->inplace_callback == nullptr) {
       mem->Update(sequence_, key, value);
-      RecordTick(options->statistics.get(), NUMBER_KEYS_UPDATED);
+      RecordTick(ioptions->statistics, NUMBER_KEYS_UPDATED);
     } else {
-      if (mem->UpdateCallback(sequence_, key, value, *options)) {
+      if (mem->UpdateCallback(sequence_, key, value)) {
       } else {
         // key not found in memtable. Do sst get, update, add
         SnapshotImpl read_from_snapshot;
@@ -376,17 +376,17 @@ class MemTableInserter : public WriteBatch::Handler {
 
         char* prev_buffer = const_cast<char*>(prev_value.c_str());
         uint32_t prev_size = prev_value.size();
-        auto status = options->inplace_callback(s.ok() ? prev_buffer : nullptr,
+        auto status = moptions->inplace_callback(s.ok() ? prev_buffer : nullptr,
                                                  s.ok() ? &prev_size : nullptr,
                                                  value, &merged_value);
         if (status == UpdateStatus::UPDATED_INPLACE) {
           // prev_value is updated in-place with final value.
           mem->Add(sequence_, kTypeValue, key, Slice(prev_buffer, prev_size));
-          RecordTick(options->statistics.get(), NUMBER_KEYS_WRITTEN);
+          RecordTick(ioptions->statistics, NUMBER_KEYS_WRITTEN);
         } else if (status == UpdateStatus::UPDATED) {
           // merged_value contains the final value.
           mem->Add(sequence_, kTypeValue, key, Slice(merged_value));
-          RecordTick(options->statistics.get(), NUMBER_KEYS_WRITTEN);
+          RecordTick(ioptions->statistics, NUMBER_KEYS_WRITTEN);
         }
       }
     }
@@ -405,17 +405,18 @@ class MemTableInserter : public WriteBatch::Handler {
       return seek_status;
     }
     MemTable* mem = cf_mems_->GetMemTable();
-    const Options* options = cf_mems_->GetOptions();
+    auto* ioptions = mem->GetImmutableOptions();
+    auto* moptions = mem->GetMemTableOptions();
     bool perform_merge = false;
 
-    if (options->max_successive_merges > 0 && db_ != nullptr) {
+    if (moptions->max_successive_merges > 0 && db_ != nullptr) {
       LookupKey lkey(key, sequence_);
 
       // Count the number of successive merges at the head
       // of the key in the memtable
       size_t num_merges = mem->CountSuccessiveMergeEntries(lkey);
 
-      if (num_merges >= options->max_successive_merges) {
+      if (num_merges >= moptions->max_successive_merges) {
         perform_merge = true;
       }
     }
@@ -439,16 +440,16 @@ class MemTableInserter : public WriteBatch::Handler {
       Slice get_value_slice = Slice(get_value);
 
       // 2) Apply this merge
-      auto merge_operator = options->merge_operator.get();
+      auto merge_operator = ioptions->merge_operator;
       assert(merge_operator);
 
       std::deque<std::string> operands;
       operands.push_front(value.ToString());
       std::string new_value;
       if (!merge_operator->FullMerge(key, &get_value_slice, operands,
-                                     &new_value, options->info_log.get())) {
+                                     &new_value, ioptions->info_log)) {
           // Failed to merge!
-        RecordTick(options->statistics.get(), NUMBER_MERGE_FAILURES);
+        RecordTick(ioptions->statistics, NUMBER_MERGE_FAILURES);
 
         // Store the delta in memtable
         perform_merge = false;
@@ -474,8 +475,9 @@ class MemTableInserter : public WriteBatch::Handler {
       return seek_status;
     }
     MemTable* mem = cf_mems_->GetMemTable();
-    const Options* options = cf_mems_->GetOptions();
-    if (!dont_filter_deletes_ && options->filter_deletes) {
+    auto* ioptions = mem->GetImmutableOptions();
+    auto* moptions = mem->GetMemTableOptions();
+    if (!dont_filter_deletes_ && moptions->filter_deletes) {
       SnapshotImpl read_from_snapshot;
       read_from_snapshot.number_ = sequence_;
       ReadOptions ropts;
@@ -486,7 +488,7 @@ class MemTableInserter : public WriteBatch::Handler {
         cf_handle = db_->DefaultColumnFamily();
       }
       if (!db_->KeyMayExist(ropts, cf_handle, key, &value)) {
-        RecordTick(options->statistics.get(), NUMBER_FILTERED_DELETES);
+        RecordTick(ioptions->statistics, NUMBER_FILTERED_DELETES);
         return Status::OK();
       }
     }

db/write_batch_test.cc

@@ -27,7 +27,8 @@ static std::string PrintContents(WriteBatch* b) {
   auto factory = std::make_shared<SkipListFactory>();
   Options options;
   options.memtable_factory = factory;
-  MemTable* mem = new MemTable(cmp, options);
+  MemTable* mem = new MemTable(cmp, ImmutableCFOptions(options),
+                               MemTableOptions(options));
   mem->Ref();
   std::string state;
   ColumnFamilyMemTablesDefault cf_mems_default(mem, &options);

include/rocksdb/immutable_options.h

@@ -51,6 +51,8 @@ struct ImmutableCFOptions {
 
   std::vector<DbPath> db_paths;
 
+  MemTableRepFactory* memtable_factory;
+
   TableFactory* table_factory;
 
   Options::TablePropertiesCollectorFactories

table/table_test.cc

@@ -437,21 +437,25 @@ class MemTableConstructor: public Constructor {
         table_factory_(new SkipListFactory) {
     Options options;
     options.memtable_factory = table_factory_;
-    memtable_ = new MemTable(internal_comparator_, options);
+    memtable_ = new MemTable(internal_comparator_,
+                             ImmutableCFOptions(options),
+                             MemTableOptions(options));
     memtable_->Ref();
   }
   ~MemTableConstructor() {
     delete memtable_->Unref();
   }
-  virtual Status FinishImpl(const Options& options,
+  virtual Status FinishImpl(const Options&,
                             const ImmutableCFOptions& ioptions,
                             const BlockBasedTableOptions& table_options,
                             const InternalKeyComparator& internal_comparator,
                             const KVMap& data) {
     delete memtable_->Unref();
-    Options memtable_options;
-    memtable_options.memtable_factory = table_factory_;
-    memtable_ = new MemTable(internal_comparator_, memtable_options);
+    Options options;
+    options.memtable_factory = table_factory_;
+    memtable_ = new MemTable(internal_comparator_,
+                             ImmutableCFOptions(options),
+                             MemTableOptions(options));
     memtable_->Ref();
     int seq = 1;
     for (KVMap::const_iterator it = data.begin();
@@ -1859,7 +1863,8 @@ TEST(MemTableTest, Simple) {
   auto table_factory = std::make_shared<SkipListFactory>();
   Options options;
   options.memtable_factory = table_factory;
-  MemTable* memtable = new MemTable(cmp, options);
+  MemTable* memtable = new MemTable(cmp, ImmutableCFOptions(options),
+                                    MemTableOptions(options));
   memtable->Ref();
   WriteBatch batch;
   WriteBatchInternal::SetSequence(&batch, 100);

util/options.cc

@@ -47,6 +47,7 @@ ImmutableCFOptions::ImmutableCFOptions(const Options& options)
     allow_mmap_reads(options.allow_mmap_reads),
     allow_mmap_writes(options.allow_mmap_writes),
     db_paths(options.db_paths),
+    memtable_factory(options.memtable_factory.get()),
     table_factory(options.table_factory.get()),
     table_properties_collector_factories(
         options.table_properties_collector_factories),