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https://issues.apache.org/jira/browse/HBASE-13339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14382814#comment-14382814
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Andrew Purtell edited comment on HBASE-13339 at 3/26/15 10:23 PM:
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I've heard Hadoop 2.6 should have been 3.0. There has not been a Hadoop release
from trunk for years now, so they've shoehorned breaking changes into "minor"
versions. There are two practical outcomes of this:
# We upgrade Hadoop 2.x to x > whatever, but this can break the world at any
minor Hadoop bump, so we cannot promise dependency compatibility nor even
Hadoop compatibility really (remember 2.1?) :-(
# We draw the lines that Hadoop won't or can't.
Any more? If not, we choose.
Edit: Fix formatting nit
was (Author: apurtell):
I've heard Hadoop 2.6 should have been 3.0. There has not been a Hadoop release
from trunk for years now, so they've shoehorned breaking changes into "minor"
versions. There are two practical outcomes of this:
# We upgrade Hadoop 2.x to x > whatever, but this can break the world at any
minor Hadoop bump, so we cannot promise dependency compatibility nor even
Hadoop compatibility really (remember 2.1?) :-(
# We draw the lines that Hadoop won't or can't.
Any more? If not, we choose.
> Update default Hadoop version to 2.6.0
> --------------------------------------
>
> Key: HBASE-13339
> URL: https://issues.apache.org/jira/browse/HBASE-13339
> Project: HBase
> Issue Type: Bug
> Components: build
> Affects Versions: 2.0.0, 1.1.0
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-13339.patch
>
>
> Current default Hadoop version is getting a little long in the tooth. We
> should update to the latest version. The latest version is backwards
> compatible with 2.5.1's dfs and mr so this should be painless.
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