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https://issues.apache.org/jira/browse/HDFS-13665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16540836#comment-16540836
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Konstantin Shvachko commented on HDFS-13665:
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Looks good. Will commit shortly.
> Move RPC response serialization into Server.doResponse
> ------------------------------------------------------
>
> Key: HDFS-13665
> URL: https://issues.apache.org/jira/browse/HDFS-13665
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: HDFS-12943
> Reporter: Plamen Jeliazkov
> Assignee: Plamen Jeliazkov
> Priority: Major
> Attachments: HDFS-13665-HDFS-12943.000.patch,
> HDFS-13665-HDFS-12943.001.patch, HDFS-13665-HDFS-12943.002.patch
>
>
> In HDFS-13399 we addressed a race condition in AlignmentContext processing
> where the RPC response would assign a transactionId independently of the
> transactions own processing, resulting in a stateId response that was lower
> than expected. However this caused us to serialize the RpcResponse twice in
> order to address the header field change.
> See here:
> https://issues.apache.org/jira/browse/HDFS-13399?focusedCommentId=16464279&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16464279
> And here:
> https://issues.apache.org/jira/browse/HDFS-13399?focusedCommentId=16498660&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16498660
> At the end it was agreed upon to move the logic of Server.setupResponse into
> Server.doResponse directly.
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