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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5481) Namenode should return lease recovery request with other requests
Date Thu, 19 Mar 2009 18:02:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683547#action_12683547
] 

Hairong Kuang commented on HADOOP-5481:
---------------------------------------

Kan, could you please explain why you need this change? Heartbeat handling is very critical
to dfs so normally we are very cautions about making any change to it. Also lease recovery
is added to the system to support append/sync feature which may undergo some future change,


> Namenode should return lease recovery request with other requests
> -----------------------------------------------------------------
>
>                 Key: HADOOP-5481
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5481
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>            Reporter: Kan Zhang
>            Assignee: Kan Zhang
>         Attachments: HADOOP-5481.patch
>
>
> HADOOP-5034 modified NN to return both replication and deletion requests to DN in one
reply to a heartbeat. However, the lease recovery request is still sent separately by itself.
Is there a reason for this? If not, I suggest we combine them together. This will make it
less confusing when adding new types of requests, which are combinable as well.

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