在成功安装GBase 8a MPP Cluster 后，在各个节点机器上的
$GCLUSTER_BASE/config 目录下，gbase_8a_gcluster.cnf 文件是GBase 8a MPP
Cluster 的默认参数文件。
在GBase 8a MPP Cluster 的各个Coordinator 节点下的gbase_8a_gcluster.cnf 参数文
件中，共有下面的参数。
表6- 3Gcluster 参数汇总
编号
参数名称
说明
GBase 8a MPP Cluster 产品手册
6 附录
文档版本953（2022-09-15）
南大通用数据技术股份有限公司
1539
编号
参数名称
说明
1
gcluster_adjust_nodes_before_redist
2
gcluster_count_optimize
3
gcluster_crossjoin_use_hash_distribution
4
gcluster_data_consistent_level
5
gcluster_ddl_parallel_execute
6
gcluster_log_level
7
gcluster_empty_result_set_optimize
8
gcluster_ha_event_monitor
9
gcluster_ha_node_left_event_delay
10
gcluster_hash_join_complex_optimize
11
gcluster_hash_redistribute_groupby_optimize
12
gcluster_hash_redistribute_join_optimize
13
gcluster_insertselect_use_values_optimize
14
gcluster_lock_level
15
gcluster_max_conn_in_pool
16
gcluster_max_thread_in_pool
17
gcluster_query_retry
18
gcluster_serial_exec_query
19
gcluster_single_hash_node_optimize
20
gcluster_special_correlated_optimize
21
gcluster_starschema_join_estimate_optimize
22
gcluster_starschema_optimize
23
gcluster_support_hash_redist_combiner
24
gcluster_union_optimize
25
gcluster_use_conn_pool
26
gcluster_use_new_decimal
27
gcluster_wait_query_cancel_timeout
28
gcluster_hash_redist_threshold_row
29
gcluster_loader_max_data_processors
30
gcluster_rebalancing_update_status_on_drop_table
31
gcluster_async_connect_timeout
32
gcluster_rebalancing_parallel_degree
33
gcluster_parallel_distribution_number
34
gcluster_enable_serial_load
35
gcluster_loader_min_chunk_size
36
gcluster_extend_ident
37
gcluster_kafka_brokers
38
gcluster_assign_kafka_topic_period
39
gcluster_kafka_max_message_size
40
gcluster_kafka_batch_commit_dml_count
GBase 8a MPP Cluster 产品手册
6 附录
文档版本953（2022-09-15）
南大通用数据技术股份有限公司
1540
编号
参数名称
说明
41
gcluster_kafka_local_queue_size
42
gcluster_kafka_consume_batch
43
gcluster_kafka_parallel_commit
44
gcluster_kafka_primarykey_can_be_null
45
_t_gcluster_kafka_null_transform
46
gcluster_random_insert
47
gcluster_kafka_ignore_if_table_not_exist
48
gcluster_connect_net_read_timeout
49
gcluster_connect_net_write_timeout
50
gcluster_support_binary
51
gcluster_kafka_delete_execute_directly
52
gcluster_rebalancing_concurrent_count
53
gcluster_rebalancing_random_table_quick_mode
54
gcluster_rebalancing_step
55
gcluster_node_exec_retry_times
56
gcluster_sql_exec_retry_times
57
gcluster_create_mirror_mode
58
_gcluster_support_outfile_with_table_head_case_sensitive
59
_t_gcluster_dml_drs_enable
Readonly 参数
60
_t_gcluster_user_defined_join_hint
61
_t_gcluster_union_redist_optimize
62
_t_gcluster_union_redist_distinct
63
gcluster_segment_id_replace
64
_t_gcluster_support_cte
65
gcluster_shrink_to_rebalance
66
gcluster_rebalancing_ignore_mirror