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https://issues.apache.org/jira/browse/HBASE-7099?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell resolved HBASE-7099.
-----------------------------------
Resolution: Invalid
The existing preCompact hook allows skipping KVs and modifying the values of
KVs.
Do this:
{code}
public preCompact(final ObserverContext<RegionCoprocessorEnvironment> c,
final Store store,
final InternalScanner scanner)
{
return new MyCustomInternalScanner(scanner);
}
{code}
Your custom InternalScanner therefore gets to inspect, drop, or change KVs from
the wrapped scanner. It is your custom scanner that will be used during
compaction.
> create compaction hooks
> ------------------------
>
> Key: HBASE-7099
> URL: https://issues.apache.org/jira/browse/HBASE-7099
> Project: HBase
> Issue Type: New Feature
> Reporter: Adela Maznikar
> Assignee: Adela Maznikar
>
> Create compaction hooks which should be used to modify the value of the KV
> during compaction. The possible modifications would include: skipping the KV,
> modifying the value of the KV in the desired format, leaving the value as it
> was.
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