云数据库 PostgreSQL 参数值限制-操作指南-文档中心-腾讯云

因资源规格等原因，部分实例参数修改会受到限制。本文主要介绍受到实例规格限制的参数与其限制值。
注意事项
以下参数值设置会占用系统资源，为避免数据库使用受到参数值的影响，请按需配置。
注意：
部分参数属于重点参数，修改会影响数据库实例使用行为或者影响数据库正常运行，请谨慎修改。
与规格相关的参数值限制
规格\\参数
max_replication_slots
max_wal_senders
max_worker_processes
max_logical_replication_workers
max_parallel_workers
max_connections
1C2GiB
[10-100]
[27-150]
[4-300]
[4-150]
[8-8]
[100-2048]
2C4GiB
[10-100]
[27-150]
[4-300]
[4-150]
[8-8]
[100-2048]
2C6GiB
[10-150]
[27-200]
[4-400]
[4-200]
[8-8]
[100-2048]
4C8GiB
[10-150]
[27-200]
[4-400]
[4-200]
[8-8]
[100-2048]
4C16GiB
[10-150]
[27-200]
[4-400]
[4-200]
[8-8]
[100-2048]
6C24GiB
[10-200]
[27-250]
[4-500]
[4-250]
[8-12]
[100-2048]
8C32GiB
[10-200]
[27-250]
[4-500]
[4-250]
[8-16]
[100-4000]
8C48GiB
[10-200]
[27-250]
[4-500]
[4-250]
[8-16]
[100-4500]
12C64GiB
[10-400]
[27-450]
[4-900]
[4--450]
[8-24]
[100-5500]
16C96GiB
[10-400]
[27-450]
[4-900]
[4--450]
[8-32]
[100-8000]
20C128GiB
[10-500]
[27-450]
[4-900]
[4--450]
[8-40]
[100-10000]
28C240GiB
[10-600]
[27-650]
[4-1300]
[4--650]
[8-60]
[100-13000]
48C480GiB
[10-600]
[27-650]
[4-1300]
[4--650]
[8-60]
[100-22000]
?

规格\\参数	max_replication_slots	max_wal_senders	max_worker_processes	max_logical_replication_workers	max_parallel_workers	max_connections
1C2GiB	[10-100]	[27-150]	[4-300]	[4-150]	[8-8]	[100-2048]
2C4GiB	[10-100]	[27-150]	[4-300]	[4-150]	[8-8]	[100-2048]
2C6GiB	[10-150]	[27-200]	[4-400]	[4-200]	[8-8]	[100-2048]
4C8GiB	[10-150]	[27-200]	[4-400]	[4-200]	[8-8]	[100-2048]
4C16GiB	[10-150]	[27-200]	[4-400]	[4-200]	[8-8]	[100-2048]
6C24GiB	[10-200]	[27-250]	[4-500]	[4-250]	[8-12]	[100-2048]
8C32GiB	[10-200]	[27-250]	[4-500]	[4-250]	[8-16]	[100-4000]
8C48GiB	[10-200]	[27-250]	[4-500]	[4-250]	[8-16]	[100-4500]
12C64GiB	[10-400]	[27-450]	[4-900]	[4--450]	[8-24]	[100-5500]
16C96GiB	[10-400]	[27-450]	[4-900]	[4--450]	[8-32]	[100-8000]
20C128GiB	[10-500]	[27-450]	[4-900]	[4--450]	[8-40]	[100-10000]
28C240GiB	[10-600]	[27-650]	[4-1300]	[4--650]	[8-60]	[100-13000]
48C480GiB	[10-600]	[27-650]	[4-1300]	[4--650]	[8-60]	[100-22000]