Catalog Row Store Alerts

These alerts track usage of the internal catalog row store, which maintains metadata necessary for core query planning and schema management. The row store has hard limits, and when it nears or exceeds these thresholds, system behavior is progressively degraded — from warnings to read-only mode and, eventually, full query block.

Purpose

These alerts notify operators when:

• The catalog row store is nearing its read-only threshold.
• The store has crossed into read-only mode.
• The system reaches the blocking threshold, at which point new queries are fully disabled.

These alerts follow a tiered severity model and are crucial for maintaining system availability. Administrators can use the referenced thresholds to tune alerting behavior.

Alert Definitions

Alert	Severity	Trigger After	Description	Threshold Ref
Row Store Status	CRITICAL	-	The database catalog row store is full ([current_value]). All queries have been disabled until usage falls below [blocking_threshold], and the database will remain read-only until it drops below [read_only_threshold].
Row Store Status	MAJOR	-	The database catalog row store is nearly full ([current_value]), and the database has been set to read-only. Normal operations will resume when usage drops below [read_only_threshold]. Query execution will be blocked entirely if it reaches [blocking_threshold].
Row Store Status	MINOR	-	The database catalog row store is nearing capacity: [current_value] used out of [read_only_threshold]. If usage exceeds [read_only_threshold], the database will switch to read-only mode.