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https://issues.apache.org/jira/browse/HDFS-13578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16493910#comment-16493910
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Chao Sun commented on HDFS-13578:
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{quote}For the datanode methods, does it matter that it is marked as UNCHECKED?
I thought that this annotation would be used on the client-side to determine
which requests to send to the observer. The client wouldn't know that the
server-side implementation uses UNCHECKED.
{quote}
Oops you are right. Will update this.
Agree with both of you on the part about {{@ReadOnly}}. Will add a separate
{{activeOnly}} flag.
> Add ReadOnly annotation to methods in ClientProtocol
> ----------------------------------------------------
>
> Key: HDFS-13578
> URL: https://issues.apache.org/jira/browse/HDFS-13578
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Chao Sun
> Assignee: Chao Sun
> Priority: Major
> Attachments: HDFS-13578-HDFS-12943.000.patch,
> HDFS-13578-HDFS-12943.001.patch, HDFS-13578-HDFS-12943.002.patch,
> HDFS-13578-HDFS-12943.004.patch
>
>
> For those read-only methods in {{ClientProtocol}}, we may want to use a
> {{@ReadOnly}} annotation to mark them, and then check in the proxy provider
> for observer.
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