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https://issues.apache.org/jira/browse/HDFS-8135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14552405#comment-14552405
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Sean Busbey commented on HDFS-8135:
-----------------------------------
So long as there is a {{HdfsConstants.SafeModeAction}} and the same is
available in FSConstants, then HBase can keep listing branch-2 versions as
usable with the HBase 1.y versions we have released.
We're happy to move to something else entirely for checking if HDFS is in safe
mode, but what version of HBase we can do that in depends on what versions of
HDFS the method is available in. The 0.98 branch needs things that start at
Hadoop 2.2, HBase 1.y needs things to start at Hadoop 2.4 (and preferably 2.2).
> Remove the deprecated FSConstants class
> ---------------------------------------
>
> Key: HDFS-8135
> URL: https://issues.apache.org/jira/browse/HDFS-8135
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Haohui Mai
> Assignee: Li Lu
> Fix For: 2.8.0
>
> Attachments: HDFS-8135-041315.patch
>
>
> The {{FSConstants}} class has been marked as deprecated since 0.23. There is
> no uses of this class in the current code base and it can be removed.
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