[
https://issues.apache.org/jira/browse/HBASE-30022?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vladimir Rodionov updated HBASE-30022:
--------------------------------------
Description:
Description
Refactor HFileReaderImpl to use CacheAccessService as the entry point for block
cache access instead of directly interacting with BlockCache.
This change updates the read path to delegate cache operations through
CacheAccessService, including:
• block lookup on read
• cache population on read miss
• cache-related metrics updates (if applicable)
Scope
• Replace direct BlockCache calls in HFileReaderImpl with
CacheAccessService
• Adapt existing call parameters to use request/write context
objects
• Ensure compatibility with current caching behavior
Notes
• No behavior change intended
• Existing cache implementations (LruBlockCache, BucketCache,
CombinedBlockCache) remain unchanged
• CacheAccessService implementation continues to delegate to
BlockCache in this phase
• This is part of migrating read path code toward a pluggable
cache architecture
was:
Refactor existing CombinedBlockCache into a topology abstraction:
• TieredExclusiveTopology
• TieredInclusiveTopology
Move responsibilities:
• L1/L2 routing
• promotion/demotion logic
• metric aggregation
Ensure behavior remains identical to current implementation.
> Refactor HFileReaderImpl to use CacheAccessService for block cache access
> -------------------------------------------------------------------------
>
> Key: HBASE-30022
> URL: https://issues.apache.org/jira/browse/HBASE-30022
> Project: HBase
> Issue Type: New Feature
> Components: BlockCache, Performance
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Priority: Major
>
> Description
> Refactor HFileReaderImpl to use CacheAccessService as the entry point for
> block cache access instead of directly interacting with BlockCache.
> This change updates the read path to delegate cache operations through
> CacheAccessService, including:
> • block lookup on read
> • cache population on read miss
> • cache-related metrics updates (if applicable)
> Scope
> • Replace direct BlockCache calls in HFileReaderImpl with
> CacheAccessService
> • Adapt existing call parameters to use request/write context
> objects
> • Ensure compatibility with current caching behavior
> Notes
> • No behavior change intended
> • Existing cache implementations (LruBlockCache, BucketCache,
> CombinedBlockCache) remain unchanged
> • CacheAccessService implementation continues to delegate to
> BlockCache in this phase
> • This is part of migrating read path code toward a pluggable
> cache architecture
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
