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From "Brian Loss (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-1994) proxy does not handle Key timestamps correctly
Date Mon, 09 Dec 2013 18:22:07 GMT
Brian Loss created ACCUMULO-1994:
------------------------------------

             Summary: proxy does not handle Key timestamps correctly
                 Key: ACCUMULO-1994
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1994
             Project: Accumulo
          Issue Type: Bug
          Components: proxy
    Affects Versions: 1.5.0, 1.4.4, 1.6.0, 1.6.1
            Reporter: Brian Loss


The proxy thrift IDL does not declare any default values for the Key struct.  This means that
timestamp will default to 0.  However, in Java it defaults to Long.MAX_VALUE.  This means
that ranges created through the proxy may behave differently than ranges created in Java.
 For example, say in Ruby I create a range as follows
{code}
range = Range.new(:start => Key.new(:row => "row1"), :startInclusive => true, :stop
=> Key.new(:row => "row2"), :stopInclusive => true)
{code}
This range will not include any keys in row1 that don't have a column family, qualifier, or
visibility since timestamp of 0 sorts last.  If I created the same range in Java, those keys
would be included.

Change the thrift IDL to declare 0x7FFFFFFFFFFFFFFF (Long.MAX_VALUE) as the default value
for timstamp so that the thrift-generated Key class behaves the same way as the Java version.

[~kturner] pointed me to the getRowRange helper method on the AccumuloProxy service.  This
method helps in some cases, but not the case I mentioned above since I have two arbitrary
rows.  Also, in looking through the code in ProxyServer, Keith noticed that the code does
not seem to handle timestamps correctly.  For example, the getRowRange method does not pass
a timestamp at all (not even the EMPTY value).  Also, the internal helper method getProxyKey
ignores the timestamp on the incoming key.



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