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https://issues.apache.org/jira/browse/HADOOP-13714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16175844#comment-16175844
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Chris Douglas commented on HADOOP-13714:
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Sorry, I didn't have time to review this in detail before it was committed.
This section may be overly restrictive, as it is currently phrased:
{noformat}
+### Native Dependencies
+
+Hadoop includes several native components, including compression, the
+container executor binary, and various native integrations. These native
+components introduce a set of native dependencies for Hadoop, both at compile
+time and at runtime, such as cmake, gcc, zlib, etc. This set of native
+dependencies is part of the Hadoop ABI.
#### Policy
-The behavior of API may be changed to fix incorrect behavior, such a change to
be accompanied by updating existing buggy tests or adding tests in cases there
were none prior to the change.
+The minimum required versions of the native components on which Hadoop depends
+at compile time and/or runtime SHALL be considered
+[Stable](./InterfaceClassification.html#Stable). Changes to the minimum
+required versions MUST NOT increase between minor releases within a major
+version.
{noformat}
If any native dependency or its toolchain has a security vulnerability, then
we're going to upgrade it. We may need to replace parts of this toolchain if
its license changes, if it becomes obsolete, or if we want to add a library
that requires upgrading other native dependencies.
> Tighten up our compatibility guidelines for Hadoop 3
> ----------------------------------------------------
>
> Key: HADOOP-13714
> URL: https://issues.apache.org/jira/browse/HADOOP-13714
> Project: Hadoop Common
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 2.7.3
> Reporter: Karthik Kambatla
> Assignee: Daniel Templeton
> Priority: Blocker
> Fix For: 3.0.0-beta1
>
> Attachments: Compatibility.pdf, HADOOP-13714.001.patch,
> HADOOP-13714.002.patch, HADOOP-13714.003.patch, HADOOP-13714.004.patch,
> HADOOP-13714.005.patch, HADOOP-13714.006.patch, HADOOP-13714.007.patch,
> HADOOP-13714.008.patch, HADOOP-13714.WIP-001.patch,
> InterfaceClassification.pdf
>
>
> Our current compatibility guidelines are incomplete and loose. For many
> categories, we do not have a policy. It would be nice to actually define
> those policies so our users know what to expect and the developers know what
> releases to target their changes.
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