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https://issues.apache.org/jira/browse/CASSANDRA-8897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14481074#comment-14481074
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Stefania commented on CASSANDRA-8897:
-------------------------------------
Few questions:
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- Does the buffer pool need to support metrics just like the FileCacheService
did?
- What about the maximum memory size beyond which it cannot grow?
- Should we create an initial number of buffers or should we just grow the pool
dynamically?
- Should the pool be only a replacement of FileCacheService, therefore used
only by PoolingSegmentedFile and derived classes when calling
createPooledReader(), or should the scope be extended to all RARs created by
SegmentedFile instances?
> Remove FileCacheService, instead pooling the buffers
> ----------------------------------------------------
>
> Key: CASSANDRA-8897
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8897
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Benedict
> Assignee: Stefania
> Fix For: 3.0
>
>
> After CASSANDRA-8893, a RAR will be a very lightweight object and will not
> need caching, so we can eliminate this cache entirely. Instead we should have
> a pool of buffers that are page-aligned.
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