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https://issues.apache.org/jira/browse/HBASE-14468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Rodionov updated HBASE-14468:
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Description:
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.
See: https://github.com/facebook/rocksdb/wiki/FIFO-compaction-style
was: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.
> 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.
> See: https://github.com/facebook/rocksdb/wiki/FIFO-compaction-style
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