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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-8305) HDFS INotify: the destination field of RenameOp should always end with the file name
Date Mon, 04 May 2015 18:38:07 GMT

     [ https://issues.apache.org/jira/browse/HDFS-8305?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Colin Patrick McCabe updated HDFS-8305:
---------------------------------------
    Description: HDFS INotify: the destination field of RenameOp should always end with the
file name rather than sometimes being a directory name.  Previously, in some cases when using
the old rename, this was not the case.  The format of OP_EDIT_LOG_RENAME_OLD allows moving
/f to /d/f to be represented as RENAME(src=/f, dst=/d) or RENAME(src=/f, dst=/d/f). This change
makes HDFS always use the latter form. This, in turn, ensures that inotify will always be
able to consider the dst field as the full destination file name. This is a compatible change
since we aren't removing the ability to handle the first form during edit log replay... we
just no longer generate it.  (was: HDFS INotify: the destination field of RenameOp should
always end with the file name rather than sometimes being a directory name.)

> HDFS INotify: the destination field of RenameOp should always end with the file name
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-8305
>                 URL: https://issues.apache.org/jira/browse/HDFS-8305
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-8305.001.patch
>
>
> HDFS INotify: the destination field of RenameOp should always end with the file name
rather than sometimes being a directory name.  Previously, in some cases when using the old
rename, this was not the case.  The format of OP_EDIT_LOG_RENAME_OLD allows moving /f to /d/f
to be represented as RENAME(src=/f, dst=/d) or RENAME(src=/f, dst=/d/f). This change makes
HDFS always use the latter form. This, in turn, ensures that inotify will always be able to
consider the dst field as the full destination file name. This is a compatible change since
we aren't removing the ability to handle the first form during edit log replay... we just
no longer generate it.



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