use tablet_allocator to get_tablets in virtual table

src/observer/virtual_table/ob_all_virtual_table_mgr.cpp

@@ -26,6 +26,7 @@ ObAllVirtualTableMgr::ObAllVirtualTableMgr()
     : ObVirtualTableScannerIterator(),
       addr_(),
       tablet_iter_(nullptr),
+      tablet_allocator_("VTTable"),
       tablet_handle_(),
       ls_id_(share::ObLSID::INVALID_LS_ID),
       all_tables_(),
@@ -54,6 +55,7 @@ void ObAllVirtualTableMgr::reset()
   }
 
   tablet_handle_.reset();
+  tablet_allocator_.reset();
 
   ObVirtualTableScannerIterator::reset();
 }
@@ -108,10 +110,11 @@ int ObAllVirtualTableMgr::get_next_tablet()
 {
   int ret = OB_SUCCESS;
 
+  tablet_allocator_.reuse();
   if (nullptr == tablet_iter_) {
+    tablet_allocator_.set_tenant_id(MTL_ID());
     ObTenantMetaMemMgr *t3m = MTL(ObTenantMetaMemMgr*);
-    tablet_iter_ = new (iter_buf_) ObTenantTabletIterator(*t3m, *allocator_);
+    if (OB_ISNULL(tablet_iter_ = new (iter_buf_) ObTenantTabletIterator(*t3m, tablet_allocator_))) {
-    if (OB_ISNULL(tablet_iter_)) {
       ret = OB_ERR_UNEXPECTED;
       SERVER_LOG(WARN, "fail to new tablet_iter_", K(ret));
     }

src/observer/virtual_table/ob_all_virtual_table_mgr.h

@@ -77,6 +77,7 @@ private:
 private:
   common::ObAddr addr_;
   storage::ObTenantTabletIterator *tablet_iter_;
+  common::ObArenaAllocator tablet_allocator_;
   ObTabletHandle tablet_handle_;
   int64_t ls_id_;
   char ip_buf_[common::OB_IP_STR_BUFF];

src/observer/virtual_table/ob_all_virtual_tablet_compaction_info.cpp

@@ -24,6 +24,7 @@ ObAllVirtualTabletCompactionInfo::ObAllVirtualTabletCompactionInfo()
       ObMultiTenantOperator(),
       addr_(),
       tablet_iter_(nullptr),
+      tablet_allocator_("VTTable"),
       tablet_handle_(),
       ls_id_(share::ObLSID::INVALID_LS_ID),
       iter_buf_(nullptr),
@@ -51,6 +52,7 @@ void ObAllVirtualTabletCompactionInfo::reset()
     iter_buf_ = nullptr;
   }
   tablet_handle_.reset();
+  tablet_allocator_.reset();
   ObVirtualTableScannerIterator::reset();
 }
 
@@ -106,10 +108,11 @@ int ObAllVirtualTabletCompactionInfo::get_next_tablet()
 {
   int ret = OB_SUCCESS;
 
+  tablet_allocator_.reuse();
   if (nullptr == tablet_iter_) {
+    tablet_allocator_.set_tenant_id(MTL_ID());
     ObTenantMetaMemMgr *t3m = MTL(ObTenantMetaMemMgr*);
-    tablet_iter_ = new (iter_buf_) ObTenantTabletIterator(*t3m);
+    if (OB_ISNULL(tablet_iter_ = new (iter_buf_) ObTenantTabletIterator(*t3m, tablet_allocator_))) {
-    if (OB_ISNULL(tablet_iter_)) {
       ret = OB_ERR_UNEXPECTED;
       SERVER_LOG(WARN, "fail to new tablet_iter_", K(ret));
     }

src/observer/virtual_table/ob_all_virtual_tablet_compaction_info.h

@@ -58,6 +58,7 @@ private:
 private:
   common::ObAddr addr_;
   storage::ObTenantTabletIterator *tablet_iter_;
+  common::ObArenaAllocator tablet_allocator_;
   ObTabletHandle tablet_handle_;
   int64_t ls_id_;
   char ip_buf_[common::OB_IP_STR_BUFF];

src/observer/virtual_table/ob_all_virtual_tablet_sstable_macro_info.cpp

@@ -67,6 +67,7 @@ ObAllVirtualTabletSSTableMacroInfo::ObAllVirtualTabletSSTableMacroInfo()
   : ObVirtualTableScannerIterator(),
     addr_(),
     tablet_iter_(nullptr),
+    tablet_allocator_("VTTable"),
     tablet_handle_(),
     ls_id_(share::ObLSID::INVALID_LS_ID),
     all_tables_(),
@@ -111,6 +112,7 @@ void ObAllVirtualTabletSSTableMacroInfo::reset()
   memset(objs_, 0, sizeof(objs_));
   iter_allocator_.reset();
   rowkey_allocator_.reset();
+  tablet_allocator_.reset();
 
   ObVirtualTableScannerIterator::reset();
 }
@@ -233,6 +235,7 @@ int ObAllVirtualTabletSSTableMacroInfo::get_macro_info(
     MacroInfo &info)
 {
   int ret = OB_SUCCESS;
+  rowkey_allocator_.reuse();
   const ObTableReadInfo &read_info = tablet_handle_.get_obj()->get_index_read_info();
   if (OB_UNLIKELY(!macro_desc.is_valid())) {
     ret = OB_INVALID_ARGUMENT;
@@ -499,10 +502,11 @@ int ObAllVirtualTabletSSTableMacroInfo::process_curr_tenant(common::ObNewRow *&r
 int ObAllVirtualTabletSSTableMacroInfo::get_next_tablet()
 {
   int ret = OB_SUCCESS;
+  tablet_allocator_.reuse();
   if (nullptr == tablet_iter_) {
+    tablet_allocator_.set_tenant_id(MTL_ID());
     ObTenantMetaMemMgr *t3m = MTL(ObTenantMetaMemMgr*);
-    tablet_iter_ = new (iter_buf_) ObTenantTabletIterator(*t3m, *allocator_);
+    if (OB_ISNULL(tablet_iter_ = new (iter_buf_) ObTenantTabletIterator(*t3m, tablet_allocator_))) {
-    if (OB_ISNULL(tablet_iter_)) {
       ret = OB_ERR_UNEXPECTED;
       SERVER_LOG(WARN, "fail to new tablet_iter_", K(ret));
     }

src/observer/virtual_table/ob_all_virtual_tablet_sstable_macro_info.h

@@ -122,6 +122,7 @@ private:
 private:
   common::ObAddr addr_;
   ObTenantTabletIterator *tablet_iter_;
+  common::ObArenaAllocator tablet_allocator_;
   ObTabletHandle tablet_handle_;
   int64_t ls_id_;
   char ip_buf_[common::OB_IP_STR_BUFF];