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https://issues.apache.org/jira/browse/CASSANDRA-5515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13710062#comment-13710062
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Jonathan Ellis edited comment on CASSANDRA-5515 at 7/16/13 6:40 PM:
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Just tracking the read counts for now, then we can build on top of it. Which
might be out of scope for 2.0.x, but I don't expect that adding the tracking
will be very invasive. Still, just having the information available will be
useful.
was (Author: jbellis):
Just tracking the read counts for now, then we can build on top of it.
(Which might be out of scope for 2.0.x, but I don't expect that adding the
tracking will be very invasive.)
> Track sstable coldness
> ----------------------
>
> Key: CASSANDRA-5515
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5515
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Tyler Hobbs
> Fix For: 2.0.1
>
>
> Keeping a count of reads per-sstable would allow STCS to automatically ignore
> cold data rather than recompacting it constantly with hot data, dramatically
> reducing compaction load for typical time series applications and others with
> time-correlated access patterns. We would not need a separate age-tiered
> compaction strategy.
> (This will really be useful in conjunction with CASSANDRA-5514.)
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