global_write_halt_residual_memory specifies the global available memory threshold that triggers the suspension of write operations of regular tenants. The sys tenant is not affected. That is, when the global available memory is smaller than the configured percentage, regular tenants are no longer allowed to write data to the memory, while write operations of the sys tenant are not affected.
| Parameter | Description |
|---|---|
| Type | Integer |
| Default value | 30 |
| Value range | [1, 99] |
| Effective upon restart of OBServer node | No |
The value of global_write_halt_residual_memory is in percentage with memory_limit - system_memory serving as the base. To be specific, the base is the total memory minus the memory reserved for the internal SYS500 tenant. During the calculation of the available memory, the memory that the block cache can occupy is considered as memory available to the MemStore.