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https://issues.apache.org/jira/browse/HBASE-17584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15926965#comment-15926965
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Enis Soztutar commented on HBASE-17584:
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bq. Let's open a thread in the mailing list for this? I think adding method to
interface is no harm for most users as they only use the interface, not
implement it...
We usually allow adding methods to interfaces in minor versions. The idea is
that users of interfaces are not affected, but only users extending that
interface. There is no distinction in code or tooling about
InterfaceAudience.Public being source/binary compatible for using or extending.
> Expose ScanMetrics with ResultScanner rather than Scan
> ------------------------------------------------------
>
> Key: HBASE-17584
> URL: https://issues.apache.org/jira/browse/HBASE-17584
> Project: HBase
> Issue Type: Sub-task
> Components: Client, mapreduce, scan
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 2.0.0
>
> Attachments: HBASE-17584.patch, HBASE-17584-v1.patch
>
>
> I think this have been discussed many times... It is a bad practice to
> directly modify the Scan object passed in when calling getScanner. The reason
> that we can not use a copy is we need to use the Scan object to expose scan
> metrics. So we need to find another way to expose the metrics.
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