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Glossary
DocumentationTDSQL BoundlessGeneral ReferenceDatabase Parameter Descriptiontdstore_enter_readonly_threshold

tdstore_enter_readonly_threshold

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Last updated: 2026-03-27 19:03:52

Feature Description

The tdstore_enter_readonly_threshold parameter is used to set the threshold for TDStore to enter read-only mode. When space utilization exceeds this threshold, TDStore will automatically switch to read-only mode. The default value is 99%, meaning that when available space is less than 1% of the total space, TDStore will enter read-only mode.
In read-only mode, TDStore does not allow data writing operations but still supports data reading. If you need to restore it to writable mode, you can manually operate or wait until TDStore automatically exits read-only mode after space utilization falls below tdstore_leave_readonly_threshold.

Attribute Description

Required
Description
Parameter Type
STR
Default Value
99%
Value Range
-
Effective Scope
GLOBAL
Restart Required
No
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