The following query lists tables with free space greater than equal to 50MB to optimize
mysql> select table_name, table_schema, round(data_length/1024/1024) as data_length_mb, round(data_free/1024/1024) as data_free_mb from information_schema.tables where round(data_free/1024/1024) > 50 order by data_free_mb;Example response:
+---------------------------------+-----------------+----------------+--------------+
| TABLE_NAME | TABLE_SCHEMA | data_length_mb | data_free_mb |
+---------------------------------+-----------------+----------------+--------------+
| field_data_field_untested_issue | database1 | 63 | 56 |
| key_value_expire | database2 | 5 | 63 |
| sessions | database2 | 62 | 73 |
| cache_entity | database2 | 140 | 76 |
| cache_menu | database2 | 67 | 213 |
| cache_entity | database2 | 184 | 233 |
| cache_render | database2 | 86 | 406 |
| cache_bootstrap | database2 | 3 | 550 |
| views_data_export_object_cache | database1 | 55 | 738 |
| cache_form | database1 | 8003 | 744 |
| cache_form | database1 | 3301 | 940 |
+---------------------------------+-----------------+----------------+--------------+Technologies: