fix btree core

deps/oblib/src/lib/allocator/ob_retire_station.h

@@ -22,7 +22,7 @@ namespace oceanbase {
 namespace common {
 class QClock {
 public:
-  enum { MAX_QCLOCK_SLOT_NUM = OB_MAX_CPU_NUM * 32 };
+  enum { MAX_QCLOCK_SLOT_NUM = OB_MAX_CPU_NUM * 64 };
   struct ClockSlot {
     ClockSlot() : clock_(UINT64_MAX)
     {}

src/storage/memtable/mvcc/ob_keybtree_deps.h

@@ -504,6 +504,7 @@ public:
   void release_ref()
   {
     qclock_.leave_critical(qc_slot_);
+    qc_slot_ = UINT64_MAX;
   }
   OB_INLINE CompHelper& get_comp()
   {

unittest/storage/memtable/mvcc/test_keybtree.cpp

@@ -103,11 +103,16 @@ int alloc_key(BtreeKey*& ret_key, int64_t key)
 
 class FakeAllocator : public ObIAllocator {
 public:
-  void* alloc(int64_t size)
+  void *alloc(int64_t size) override
   {
     return ob_malloc(size, attr);
   }
-  void free(void* ptr)
+  void* alloc(const int64_t size, const ObMemAttr& attr) override
+  {
+    UNUSED(attr);
+    return alloc(size);
+  }
+  void free(void* ptr) override
   {
     ob_free(ptr);
   }