Danny Becker updated HDFS-15031:
    Attachment: HDFS-15031.000.patch

> Allow BootstrapStandby to download FSImage if the directory is already 
> formatted
> --------------------------------------------------------------------------------
>                 Key: HDFS-15031
>                 URL: https://issues.apache.org/jira/browse/HDFS-15031
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs, namenode
>            Reporter: Danny Becker
>            Assignee: Danny Becker
>            Priority: Minor
>         Attachments: HDFS-15031.000.patch
> Currently, BootstrapStandby will only download the latest FSImage if it has 
> formatted the local image directory. This can be an issue when there are out 
> of date FSImages on a Standby NameNode, as the non-interactive mode will not 
> format the image directory, and BootstrapStandby will return an error code. 
> The changes here simply allow BootstrapStandby to download the latest FSImage 
> to the image directory, without needing to format first.

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