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Posted to commits@cassandra.apache.org by "Benedict (JIRA)" <ji...@apache.org> on 2015/03/11 13:37:38 UTC
[jira] [Created] (CASSANDRA-8947) Cleanup Cell equality
Benedict created CASSANDRA-8947:
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Summary: Cleanup Cell equality
Key: CASSANDRA-8947
URL: https://issues.apache.org/jira/browse/CASSANDRA-8947
Project: Cassandra
Issue Type: Bug
Components: Core
Reporter: Benedict
Assignee: Benedict
Priority: Minor
Fix For: 2.1.4
As pointed out by [~dbrosius], it is possible for AbstractCell to generate false positive equality assertions if, e.g., a non-expiring cell is replaced by an expiring equivalent. It's not clear to me if this would ever be a real problem, since we would reconcile correctly, and as such equality would unlikely ever be a problem (it's used rarely, only really for hash maps I think (although auditing this is difficult) in which the hash code would also be different, and by which point we should have resolved conflicts). It's also a very small exposure profile, with either non-ttl'd writes mixed with ttl'd, or a delete of a value representing the deletion timestamp.
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