#### 23.6.14.46 The ndbinfo memory\_per\_fragment Table

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 The `memory_per_fragment` table provides information about the usage of memory by individual fragments.

 The `memory_per_fragment` table contains the following columns:

* `fq_name`

   Name of this fragment

* `parent_fq_name`

   Name of this fragment's parent

* `type`

   Type of object; see text for possible values

* `table_id`

   Table ID for this table

* `node_id`

   Node ID for this node

* `block_instance`

   Kernel block instance ID

* `fragment_num`

   Fragment ID (number)

* `fixed_elem_alloc_bytes`

   Number of bytes allocated for fixed-sized elements

* `fixed_elem_free_bytes`

   Free bytes remaining in pages allocated to fixed-size elements

* `fixed_elem_size_bytes`

   Length of each fixed-size element in bytes

* `fixed_elem_count`

   Number of fixed-size elements

* `fixed_elem_free_count`

   Number of free rows for fixed-size elements

* `var_elem_alloc_bytes`

   Number of bytes allocated for variable-size elements

* `var_elem_free_bytes`

   Free bytes remaining in pages allocated to variable-size elements

* `var_elem_count`

   Number of variable-size elements

* `hash_index_alloc_bytes`

   Number of bytes allocated to hash indexes

##### Notes

 The `type` column from this table shows the dictionary object type used for this fragment ([`Object::Type`](https://dev.mysql.com/doc/ndbapi/en/ndb-object.html#ndb-object-type), in the NDB API), and can take any one of the values shown in the following list:

* System table

* User table

* Unique hash index

* Hash index

* Unique ordered index

* Ordered index

* Hash index trigger

* Subscription trigger

* Read only constraint

* Index trigger

* Reorganize trigger

* Tablespace

* Log file group

* Data file

* Undo file

* Hash map

* Foreign key definition

* Foreign key parent trigger

* Foreign key child trigger

* Schema transaction

 You can also obtain this list by executing [`SELECT * FROM`](select.html) [`ndbinfo.dict_obj_types`](mysql-cluster-ndbinfo-dict-obj-types.html) in the [**mysql**](mysql.html) client.

 The `block_instance` column provides the NDB kernel block instance number. You can use this to obtain information about specific threads from the [`threadblocks`](mysql-cluster-ndbinfo-threadblocks.html) table.

