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https://issues.apache.org/jira/browse/HBASE-3644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13006803#comment-13006803
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Nicolas Spiegelberg commented on HBASE-3644:
--------------------------------------------
@Stack: hmm. I was using HSA because it was in the existing HBCK code that I'm
improving. I think I might be able to move over to pure ISA. Should we add
@Deprecated annotations to this class?
> HServerAddress Violates Equivalence Relations
> ---------------------------------------------
>
> Key: HBASE-3644
> URL: https://issues.apache.org/jira/browse/HBASE-3644
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.90.2, 0.92.0
> Reporter: Nicolas Spiegelberg
> Assignee: Nicolas Spiegelberg
> Fix For: 0.90.2, 0.92.0
>
>
> See HBASE-3387 or
> http://www.ibm.com/developerworks/java/library/j-jtp05273.html#N10184 .
> Basically, 'a' denotes HServerAddress(DNS) & 'b' denotes
> HServerAddress(nslookup(DNS)). This is extremely common within HBase when
> 'conf/regionserver' contains DNS entries because ClusterStatus.getServers()
> is IP-based. You have a.address.equals(b.address) &&
> !a.stringValue.equals(b.stringValue). In this case, a.equals(b) while
> a.hashCode() != b.hashCode().
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