[jira] [Assigned] (HDFS-15099) [SBN Read] getBlockLocations() should throw ObserverRetryOnActiveException on an attempt to change aTime on ObserverNode

["Konstantin Shvachko (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-15099?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Konstantin Shvachko reassigned HDFS-15099:
------------------------------------------

    Assignee: Chen Liang

> [SBN Read] getBlockLocations() should throw ObserverRetryOnActiveException on an attempt to change aTime on ObserverNode
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-15099
>                 URL: https://issues.apache.org/jira/browse/HDFS-15099
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.10.0
>            Reporter: Konstantin Shvachko
>            Assignee: Chen Liang
>            Priority: Major
>
> The precision of updating an INode's aTime while executing {{getBlockLocations()}} is 1 hour by default. Updates cannot be handled by ObserverNode, so the call should be redirected to Active NameNode. In order to redirect to active the ObserverNode should through {{ObserverRetryOnActiveException}}.



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