Redundant computation in hashCode() implemenation
-------------------------------------------------
Key: HADOOP-3383
URL: https://issues.apache.org/jira/browse/HADOOP-3383
Project: Hadoop Core
Issue Type: Improvement
Reporter: Tsz Wo (Nicholas), SZE
In some hashCode() implementation (e.g. Block.hashCode()), the formula has the
form
{noformat}
37 * 17 + f(x),
{noformat}
where f( x ) is some function. Adding 37*17 to f( x ) shifts the value of f( x
). It is not effective to do shifting in hash functions. The computation is
redundant.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
