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From "Mukund Madhugiri (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3185) DFSClient should track failures by block rather than globally
Date Sat, 07 Jun 2008 01:26:46 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mukund Madhugiri updated HADOOP-3185:
-------------------------------------

    Fix Version/s:     (was: 0.18.0)

> DFSClient should track failures by block rather than globally
> -------------------------------------------------------------
>
>                 Key: HADOOP-3185
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3185
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>            Reporter: Chris Douglas
>
> Rather than tracking the total number of times DFSInputStream failed to locate a datanode
for a particular block, such failures and the the list of datanodes involved should be scoped
to individual blocks. In particular, the "deadnode" list should be a map of blocks to a list
of failed nodes, the latter reset and the nodes retried per the existing semantics.

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