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https://issues.apache.org/jira/browse/HADOOP-1161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12484431
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James P. White commented on HADOOP-1161:
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Owen said that he thinks bug fixes go on the branches first, which I pretty
much disagree with. Applying a fix to the trunk before the branch, as Doug
described, is what I typically encounter. For one thing that keeps the branch
free of "fixes" that haven't had any testing.
The key bit of patching discipline comes in when the branch maintainers are
different than the trunk maintainer(s). When those roles are not
differentiated, it is even more important to fix the trunk first because of the
risk (inevitability) of regressions due to a patch being made to the branch and
not making it to the trunk.
The nasty business of regressions highlights how essential test cases are,
especially for fixes (or any changes) that appear in releases.
> need improved release process
> -----------------------------
>
> Key: HADOOP-1161
> URL: https://issues.apache.org/jira/browse/HADOOP-1161
> Project: Hadoop
> Issue Type: Improvement
> Components: build
> Reporter: Doug Cutting
> Fix For: 0.13.0
>
>
> Hadoop's release process needs improvement. We should better ensure that
> releases are stable, not releasing versions that have not been proven stable
> on large clusters, and we should better observe Apache's release procedures.
> Once agreed on, this process should be documented in
> http://wiki.apache.org/lucene-hadoop/HowToRelease.
> Here's a proposal:
> . candidate release builds should be placed in
> lucene.apache.org/hadoop/dev/dist
> . candidate artifacts should be accompanied by a md5 and pgp signatures
> . a 72-hour vote for the release artifact should be called on hadoop-dev.
> . 3 binding +1 votes and a majority are required
> . if the vote passes, the release can then posted to
> www.apache.org/dist/lucene/hadoop for mirroring
> This would bring us into accord with Apache's requirements, and better permit
> large-cluster validation.
> We should also build consensus for a release before we commence this process.
> Perhaps we should aim for releases every two months instead of every month.
> We should perhaps develop more elaborate branching and merging conventions
> around releases. Currently we mostly lock-out changes intended for release
> X+1 from trunk until release X is complete, which can be awkward. How can we
> better manage that?
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