[jira] [Updated] (HDFS-13488) RBF: Reject requests when a Router is overloaded

["Yiqun Lin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-13488?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yiqun Lin updated HDFS-13488:
-----------------------------
    Affects Version/s: 3.0.1
         Hadoop Flags: Reviewed
     Target Version/s: 3.2.0, 3.1.1
        Fix Version/s: 3.0.4
                       2.9.2
                       3.1.1
                       3.2.0
                       2.10.0

Committed this to trunk, branch-3.1. branch-3.0 and branch-2 and branch-2.9.
Thanks [~elgoiri] for the contribution.

> RBF: Reject requests when a Router is overloaded
> ------------------------------------------------
>
>                 Key: HDFS-13488
>                 URL: https://issues.apache.org/jira/browse/HDFS-13488
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: 3.0.1
>            Reporter: Íñigo Goiri
>            Assignee: Íñigo Goiri
>            Priority: Major
>             Fix For: 2.10.0, 3.2.0, 3.1.1, 2.9.2, 3.0.4
>
>         Attachments: HDFS-13488.000.patch, HDFS-13488.001.patch, HDFS-13488.002.patch, HDFS-13488.003.patch, HDFS-13488.004.patch
>
>
> A Router might be overloaded when handling special cases (e.g. a slow subcluster). The Router could reject the requests and the client could try with another Router. We should leverage the Standby mechanism for this. 



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