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https://issues.apache.org/jira/browse/HDFS-2079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe reassigned HDFS-2079:
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Assignee: Colin Patrick McCabe (was: Todd Lipcon)
> 1073: create an escape hatch to ignore startup consistency problems
> -------------------------------------------------------------------
>
> Key: HDFS-2079
> URL: https://issues.apache.org/jira/browse/HDFS-2079
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Affects Versions: Edit log branch (HDFS-1073)
> Reporter: Todd Lipcon
> Assignee: Colin Patrick McCabe
> Fix For: Edit log branch (HDFS-1073)
>
>
> In the 1073 branch, the NN is much more careful on startup to make sure it
> isn't missing any transactions, etc. For example, if
> one of the log segments is missing, it will refuse to start up with a message
> like "Expected next log group would start at txid 502 but starts at txid
> 516". It would be nice to provide a last-ditch escape hatch, similar to
> InnoDB's [force recovery
> modes|http://dev.mysql.com/doc/refman/5.1/en/forcing-innodb-recovery.html] to
> allow the operator to tell the NN to attempt to push past any such problems,
> with data loss expected.
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