- STCS - SizeTieredCompactionStrategy
- LCS - LeveledCompactionStrategy
- DTCS - DateTieredCompactionStrategy
## STCS
* The default compaction strategy.
* Tuned to write performance.
- Tuned to more consistent read latency.
- At most 10% space wasted by obsolete rows.
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## DTCS
* New in 2.0.11 and 2.1.1 [CASSANDRA-6602](https://issues.apache.org/jira/browse/CASSANDRA-6602)
* Takes advantage of special properties of time series data.
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### Danger Areas
* Its very new
* Out of order writes
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## Links
* [DateTieredCompactionStrategy: Compaction for Time Series Data](http://www.datastax.com/dev/blog/datetieredcompactionstrategy)
* [Commit](http://mail-archives.apache.org/mod_mbox/cassandra-commits/201410.mbox/%[email protected]%3E)