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https://issues.apache.org/jira/browse/AMBARI-12778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14699045#comment-14699045
]
Hudson commented on AMBARI-12778:
---------------------------------
FAILURE: Integrated in Ambari-trunk-Commit #3279 (See
[https://builds.apache.org/job/Ambari-trunk-Commit/3279/])
AMBARI-12778 - RU: Downgrade Fails For All Components From Finalize
(jonathanhurley) (jhurley:
http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=a236102cf8ac1c06fef955fb9f858e5f2953e29c)
*
ambari-common/src/main/python/resource_management/libraries/functions/conf_select.py
* ambari-server/src/test/python/custom_actions/test_ru_set_all.py
* ambari-server/src/main/resources/custom_actions/scripts/ru_set_all.py
*
ambari-server/src/main/resources/common-services/FLUME/1.4.0.2.0/package/scripts/flume_upgrade.py
* ambari-server/src/main/resources/stacks/HDP/2.2/upgrades/upgrade-2.3.xml
*
ambari-server/src/main/resources/common-services/FLUME/1.4.0.2.0/package/scripts/params_linux.py
*
ambari-server/src/main/resources/common-services/FLUME/1.4.0.2.0/package/scripts/flume_handler.py
> RU: Downgrade Fails For All Components From Finalize
> ----------------------------------------------------
>
> Key: AMBARI-12778
> URL: https://issues.apache.org/jira/browse/AMBARI-12778
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.1.0
> Environment: HDP 2.2 to 2.3 (Downgrade after finalize)
> Reporter: Jonathan Hurley
> Assignee: Jonathan Hurley
> Priority: Blocker
> Fix For: 2.1.1
>
> Attachments: AMBARI-12778.patch
>
>
> When downgrading a rolling upgrade from HDP 2.3 back to HDP 2.2, all
> components will fail with:
> {code}
> Fail("Applying %s failed, looped symbolic links found while resolving %s" %
> (self.resource, path))
> resource_management.core.exceptions.Fail: Applying
> Directory['/usr/hdp/current/flume-server/conf'] failed, looped symbolic links
> found while resolving /usr/hdp/current/flume-server/conf
> {code}
> The problem is that Ambari changes {{/etc/component/conf}} from a directory
> to a symlink when upgrading to HDP 2.3 from HDP 2.2. During the downgrade,
> once the component is put back in HDP 2.2, the following is observed:
> {code}
> [root@c6401 flume]# ls -l /etc/flume
> total 8
> drwxr-xr-x 3 root root 4096 Aug 14 15:44 2.3.2.0-2586
> lrwxrwxrwx 1 root root 34 Aug 14 16:14 conf ->
> /usr/hdp/current/flume-server/conf
> drwxr-xr-x 2 flume root 4096 Aug 14 15:42 conf.backup
> (/usr/hdp/2.2.7.0-2816/flume/)
> [root@c6401 flume]# ls -l /usr/hdp/current/flume-server/conf
> total 16
> drwxr-xr-x 2 root root 4096 Aug 14 15:42 bin
> lrwxrwxrwx 1 root root 15 Aug 14 15:42 conf -> /etc/flume/conf
> drwxr-xr-x 9 root root 4096 Aug 14 15:42 docs
> drwxr-xr-x 2 root root 4096 Aug 14 15:42 lib
> drwxr-xr-x 2 root root 4096 Aug 14 15:42 tools
> {code}
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