hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3329) DatanodeDescriptor objects stored in FSImage may be out dated.
Date Fri, 09 May 2008 21:41:55 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

dhruba borthakur updated HADOOP-3329:
-------------------------------------

      Resolution: Fixed
    Release Note: The file system image file does not store block locations of the last block
of a file.
    Hadoop Flags: [Incompatible change, Reviewed]
          Status: Resolved  (was: Patch Available)

> DatanodeDescriptor objects stored in FSImage may be out dated.
> --------------------------------------------------------------
>
>                 Key: HADOOP-3329
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3329
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: dhruba borthakur
>             Fix For: 0.18.0
>
>         Attachments: lastBlockLocations.patch
>
>
> INodeFileUnderConstruction.targets is a DatanodeDescriptor array which stores the locations
for last block.  These DatanodeDescriptors are serialized and stored in the FSImage.  However,
a DatanodeDescriptor contains information like IP address and ports.  These information may
be out dated after a datanode restart.
> We should probably only stored the storageID of a DatanodeDescriptor in FSImage and then
lookup the DatanodeDescriptor object from the datanodeMap.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message