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From "Joe Pallas (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-3730) DEFAULT_VERSIONS should be 1
Date Mon, 04 Apr 2011 18:21:08 GMT

                 Key: HBASE-3730
                 URL: https://issues.apache.org/jira/browse/HBASE-3730
             Project: HBase
          Issue Type: Improvement
            Reporter: Joe Pallas
            Priority: Minor

The current DEFAULT_VERSIONS (in HColumnDescriptor) is 3, but there is no particular reason
for this.  Many uses require only 1, and having a default that is different makes people confused
(e.g., "Do I need multiple versions to support deletes properly?").

Reasonable values for the default are 1 and max int.  1 is the better choice.

Discussion on the mailing list suggests that the current value of 3 may have been derived
from an example in the Bigtable paper.  The example does not suggest that there is anything
special about 3, it's just an illustration.

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