hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-580) Name node will exit safe mode w/0 blocks even if data nodes are broken
Date Wed, 02 Sep 2009 09:32:32 GMT

    [ https://issues.apache.org/jira/browse/HDFS-580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750354#action_12750354
] 

Steve Loughran commented on HDFS-580:
-------------------------------------

Maybe the NN should do a health check by trying to write and then read a file before declaring
itself live

> Name node will exit safe mode w/0 blocks even if data nodes are broken
> ----------------------------------------------------------------------
>
>                 Key: HDFS-580
>                 URL: https://issues.apache.org/jira/browse/HDFS-580
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Allen Wittenauer
>
> If one brings up a freshly formatted name node against older data nodes with an incompatible
storage id (such that the datanodes fail with Directory /mnt/u001/dfs-data is in an inconsistent
state: is incompatible with others.), the name node will still come out of safe mode.  Writes
will partially succeed--entries are created, but all are zero length.

-- 
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