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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-652) Not all Datastructures are updated when a block is deleted
Date Fri, 10 Nov 2006 16:57:38 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-652?page=comments#action_12448799 ] 
            
Raghu Angadi commented on HADOOP-652:
-------------------------------------


You should update your code. FSDataset.java  has changed recently. Also do a 'diff -u' for
submitting a patch.

This fixes only updating numBlock and does not fix recursion. I am thinking of fixing both
(a) and (b) in comment #1 above.


> Not all Datastructures are updated when a block is deleted
> ----------------------------------------------------------
>
>                 Key: HADOOP-652
>                 URL: http://issues.apache.org/jira/browse/HADOOP-652
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.8.0
>            Reporter: Raghu Angadi
>         Attachments: FSDataset.java.patch
>
>
> Currently when a block is deleted, DataNode just deletes the physical file and updates
its map. We need to update more things. For e.g. numBlocks in FSDir is not decremented.. effect
of this would be that we will create more subdirectories than necessary. It might not show
up badly yet since numBlocks gets correct value when the dataNode restarts. I have to see
what else needs to be updated.

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