add support in HBase to overwrite hbase timestamp to a version number during
major compaction
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Key: HBASE-5674
URL: https://issues.apache.org/jira/browse/HBASE-5674
Project: HBase
Issue Type: Improvement
Reporter: He Yongqiang
Assignee: He Yongqiang
Right now, a millisecond-level timestamp is attached to every record.
In our case, we only need a version number (mostly it will be just zero etc). A
millisecond timestamp is too heavy to carry. We should add support to overwrite
it to zero during major compaction.
KVs before major compaction will remain using system timestamp. And this should
be configurable, so that we should not mess up if the hbase timestamp is
specified by application.
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