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https://issues.apache.org/jira/browse/HBASE-30019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Rodionov updated HBASE-30019:
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Description:
h2. Description
Introduce core internal abstractions for a pluggable block cache architecture:
* *CacheEngine* — storage abstraction for cache backends
* *CacheTopology* — L1/L2 orchestration and coordination layer
* request/write context objects
This change is strictly architectural and introduces new APIs without altering
existing behavior.
h3. Notes
* No behavior change intended
* Existing cache implementations (*LruBlockCache*, *BucketCache*) continue to
work as-is
* No changes to current call sites (*BlockCache* usage remains unchanged)
* Serves as the foundation for subsequent refactoring and migration steps
was:
Introduce core internal abstractions for a pluggable block cache architecture:
• CacheEngine (storage interface)
• CacheTopology (L1/L2 orchestration)
• request/write context objects
This change is strictly a refactoring:
• no behavior change
• existing LruBlockCache and BucketCache continue to work as-is
• serves as foundation for future work
> Introduce CacheEngine and CacheTopology abstractions (no behavior change)
> -------------------------------------------------------------------------
>
> Key: HBASE-30019
> URL: https://issues.apache.org/jira/browse/HBASE-30019
> Project: HBase
> Issue Type: New Feature
> Components: BlockCache, Performance
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Priority: Major
>
> h2. Description
> Introduce core internal abstractions for a pluggable block cache architecture:
> * *CacheEngine* — storage abstraction for cache backends
> * *CacheTopology* — L1/L2 orchestration and coordination layer
> * request/write context objects
> This change is strictly architectural and introduces new APIs without
> altering existing behavior.
> h3. Notes
> * No behavior change intended
> * Existing cache implementations (*LruBlockCache*, *BucketCache*) continue to
> work as-is
> * No changes to current call sites (*BlockCache* usage remains unchanged)
> * Serves as the foundation for subsequent refactoring and migration steps
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