HServerInfo (and ServerName) equate the same if the hostname and port are same
even if IP has changed
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Key: HBASE-3886
URL: https://issues.apache.org/jira/browse/HBASE-3886
Project: HBase
Issue Type: Improvement
Reporter: stack
This is an interesting one. HServerInfo is deprecated in TRUNK and replaced
effectively by a new class ServerName. Both equate instances of HSI or SN if
the two instances have the same hostname and port. Well, thats well and good
but what if we are getting signals from a server whose IP has changed? In this
case, we'll see the server in its new location come in but we'll treat it as
though we'd seen it already, thought its IP had changed. We don't want this.
This facility is needed for rare case where a server is moved from one IP to
another.
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