Bug still not resolved for all variables. 


show variables like '%spider%';

+---------------------------------------+------------+
| Variable_name                         | Value      |
+---------------------------------------+------------+
| spider_auto_increment_mode            | 4294967295 |
| spider_bgs_first_read                 | -1         |
| spider_bgs_mode                       | 4294967295 |
| spider_bgs_second_read                | -1         |
| spider_bka_engine                     |            |
| spider_bka_mode                       | 4294967295 |
| spider_block_size                     | 16384      |
| spider_bulk_size                      | 4294967295 |
| spider_bulk_update_mode               | 4294967295 |
| spider_bulk_update_size               | 4294967295 |
| spider_conn_recycle_mode              | 0          |
| spider_conn_recycle_strict            | 0          |
| spider_connect_mutex                  | OFF        |
| spider_connect_retry_count            | 1000       |
| spider_connect_retry_interval         | 1000       |
| spider_crd_bg_mode                    | 4294967295 |
| spider_crd_interval                   | 4294967295 |
| spider_crd_mode                       | 4294967295 |
| spider_crd_sync                       | 4294967295 |
| spider_crd_type                       | 4294967295 |
| spider_crd_weight                     | 4294967295 |
| spider_direct_dup_insert              | 4294967295 |
| spider_direct_order_limit             | -1         |
| spider_first_read                     | -1         |
| spider_force_commit                   | 0          |
| spider_hs_r_conn_recycle_mode         | 2          |
| spider_hs_r_conn_recycle_strict       | 0          |
| spider_hs_w_conn_recycle_mode         | 2          |
| spider_hs_w_conn_recycle_strict       | 0          |
| spider_init_sql_alloc_size            | 4294967295 |
| spider_internal_limit                 | -1         |
| spider_internal_offset                | -1         |
| spider_internal_optimize              | 4294967295 |
| spider_internal_optimize_local        | 4294967295 |
| spider_internal_sql_log_off           | ON         |
| spider_internal_unlock                | OFF        |
| spider_internal_xa                    | OFF        |
| spider_internal_xa_snapshot           | 0          |
| spider_local_lock_table               | OFF        |
| spider_lock_exchange                  | OFF        |
| spider_low_mem_read                   | 4294967295 |
| spider_max_order                      | 4294967295 |
| spider_multi_split_read               | 4294967295 |
| spider_net_timeout                    | 4294967295 |
| spider_ping_interval_at_trx_start     | 3600       |
| spider_quick_mode                     | 4294967295 |
| spider_quick_page_size                | -1         |
| spider_read_only_mode                 | 4294967295 |
| spider_remote_access_charset          |            |
| spider_remote_autocommit              | 4294967295 |
| spider_remote_sql_log_off             | 4294967295 |
| spider_remote_time_zone               |            |
| spider_remote_trx_isolation           | 4294967295 |
| spider_reset_sql_alloc                | 4294967295 |
| spider_same_server_link               | OFF        |
| spider_second_read                    | -1         |
| spider_select_column_mode             | 4294967295 |
| spider_selupd_lock_mode               | 4294967295 |
| spider_semi_split_read                | 4294967295 |
| spider_semi_split_read_limit          | -1         |
| spider_semi_table_lock                | 1          |
| spider_semi_table_lock_connection     | 4294967295 |
| spider_semi_trx                       | ON         |
| spider_semi_trx_isolation             | 4294967295 |
| spider_skip_default_condition         | 4294967295 |
| spider_split_read                     | -1         |
| spider_sts_bg_mode                    | 4294967295 |
| spider_sts_interval                   | 4294967295 |
| spider_sts_mode                       | 4294967295 |
| spider_sts_sync                       | 4294967295 |
| spider_support_xa                     | ON         |
| spider_sync_autocommit                | ON         |
| spider_sync_time_zone                 | OFF        |
| spider_sync_trx_isolation             | ON         |
| spider_table_init_error_interval      | 1          |
| spider_udf_ct_bulk_insert_interval    | 4294967295 |
| spider_udf_ct_bulk_insert_rows        | -1         |
| spider_udf_ds_bulk_insert_rows        | -1         |
| spider_udf_ds_table_loop_mode         | 4294967295 |
| spider_udf_table_lock_mutex_count     | 20         |
| spider_udf_table_mon_mutex_count      | 20         |
| spider_use_all_conns_snapshot         | OFF        |
| spider_use_consistent_snapshot        | OFF        |
| spider_use_flash_logs                 | OFF        |
| spider_use_handler                    | 4294967295 |
| spider_use_hs_read                    | 4294967295 |
| spider_use_hs_write                   | 4294967295 |
| spider_use_pushdown_udf               | 4294967295 |
| spider_use_snapshot_with_flush_tables | 0          |
| spider_use_table_charset              | 4294967295 |
+---------------------------------------+------------+
90 rows in set (0.55 sec)