[jira] Created: (HBASE-2406) Define semantics of cell timestamps

["Todd Lipcon (JIRA)" <ji...@apache.org>]

Define semantics of cell timestamps
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                 Key: HBASE-2406
                 URL: https://issues.apache.org/jira/browse/HBASE-2406
             Project: Hadoop HBase
          Issue Type: Task
          Components: documentation
            Reporter: Todd Lipcon


There is a lot of general confusion over the semantics of the cell timestamp. In particular, a couple questions that often come up:
- If multiple writes to a cell have the same timestamp, are all versions maintained or just the last?
- Is it OK to write cells in a non-increasing timestamp order?

Let's discuss, figure out what semantics make sense, and then move towards (a) documentation, (b) unit tests that prove we have those semantics.

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