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https://issues.apache.org/jira/browse/CASSANDRA-3143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13098277#comment-13098277
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Pavel Yaskevich commented on CASSANDRA-3143:
--------------------------------------------
So yes, CacheSegment is a segment of the cache which is allocated per
ColumnFamilyStore. It is going to be used to put/get to global cache and to
hold CFS specific properties of the cache such as current cache capacity and
size (modification of those properties will be reflected on the global cache
level so we don't need to worry about eviction policies). Also segment will be
responsible to save/read cache to/from disk.
> Global caches (key/row)
> -----------------------
>
> Key: CASSANDRA-3143
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3143
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Pavel Yaskevich
> Assignee: Pavel Yaskevich
> Priority: Minor
> Labels: Core
> Fix For: 1.1
>
>
> Caches are difficult to configure well as ColumnFamilies are added, similar
> to how memtables were difficult pre-CASSANDRA-2006.
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