Reference: parameters (GUC)#

oushudb_main_directory#

oushu main directories

Value Range

Default

Set Classifications

String

/data1/oushudb/masterdd

master, system, restart

oushudb_main_temp_directory#

main temporary directories

Value Range

Default

Set Classifications

String

/tmp

master, system, restart

oushudb_segment_temp_directory#

segment temporary directories

Value Range

Default

Set Classifications

String

/tmp

master, system, restart

oushudb_main_port#

oushu main port

Value Range

Default

Set Classifications

0-65546

7432

system

oushudb_segment_port#

oushu segment port

Value Range

Default

Set Classifications

0-65546

40000

system

catalog_url#

配置元数据访问路径, ‘catalog_url’ 应当在 magma-client.xml 中展开

Value Range

Default

Set Classifications

String

default_nameservice/vsc_catalog

system

gp_vmem_protect_limit#

OushuDB 计算节点最大可用内存, 建议配置为节点内存 70-90%(需要为部署的其他系统留出一定内存)

Value Range

Default

Set Classifications

0-INT_MAX/2

8192

session, reload

plan_cache_mode#

Controls the planner’s selection of custom or generic plan

Value Range

Default

Set Classifications

auto,force_generic_plan,force_custom_plan

force_custom_plan

master,system,restart

cache_disk_quota_segment#

根据DB临时磁盘大小配置每个计算节点缓存大小,默认512GB

Value Range

Default

Set Classifications

0-INT32_MAX

512GB

master,system,restart

default_numeric_unconstrained_storage#

控制建表时 NUMERIC 实际存储类型,默认为有限精度(38位精度,15位小数)。如需无限精度,请配置为 NUMERIC。

Value Range

Default

Set Classifications

NUMERIC(M, D), NUMERIC

NUMERIC(38,15)

master, session, reload