Vladimir Rodionov created HBASE-14468:
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Summary: Compaction improvements: FIFO compaction policy
Key: HBASE-14468
URL: https://issues.apache.org/jira/browse/HBASE-14468
Project: HBase
Issue Type: Improvement
Reporter: Vladimir Rodionov
Assignee: Vladimir Rodionov
Fix For: 2.0.0
FIFO compaction policy selects only files which have all cells expired. The
column family MUST have non-default TTL. One of the use cases for this policy
is when we need to store raw data which will be post-processed later and
discarded completely after quite short period of time. Raw time-series vs.
time-based rollup aggregates and compacted time-series. We collect raw
time-series and store them into CF with FIFO compaction policy, periodically we
run task which creates rollup aggregates and compacts time-series, the
original raw data can be discarded after that.
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