terrymanu commented on issue #24236:
URL:
https://github.com/apache/shardingsphere/issues/24236#issuecomment-3535466298
## Problem Confirmation and Solution Status
After a thorough code analysis of ShardingSphere's current architecture
(master branch), the configuration storage limit issue raised in Issue #24236
has been completely resolved.
## Current Implementation
ShardingSphere has restructured its configuration storage architecture and
implemented rule-type-based sharded storage:
New Storage Structure:
```
/[database_name]/rules/
├── sharding/ # Separate node for sharding rules
├── readwrite_splitting/ # Separate node for readwrite splitting rules
├── encrypt/ # Separate node for encrypt rules
├── broadcast/ # Separate node for broadcast table rules
├── mask/ # Separate node for mask rules
├── shadow/ # Separate node for shadow rules
├── transaction/ # Separate node for transaction rules
└── sql_parser/ # Separate node for SQL parser rules
```
Core Implementation Mechanism:
- Uses ${database}/rules/${ruleType}/${databaseRuleItem} path structure
- Defines rule types through @RuleNodeTupleEntity annotation
- Supports classified storage for named items (tables, dataSourceGroups,
etc.) and unique items (algorithms, properties, etc.)
- Each rule type has independent storage nodes in the registry center
## Problems Resolved
✅ ZooKeeper 1MB Limit: Each rule type is stored independently, avoiding
oversized single nodes
✅ Consul 512KB Limit: Configuration is sharded, individual rule types
won't exceed limits
✅ Large-Scale Support: Now supports enterprise applications with hundreds
of tables
✅ High Concurrency Performance: Different rule types can be operated in
parallel
✅ Flexible Extension: New rule types can be easily added through
annotations
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