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https://issues.apache.org/jira/browse/AMBARI-12778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14698332#comment-14698332
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Hadoop QA commented on AMBARI-12778:
------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12750652/AMBARI-12778.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:red}-1 core tests{color}. The patch failed these unit tests in
ambari-server:
org.apache.ambari.server.controller.AmbariManagementControllerTest
Test results:
https://builds.apache.org/job/Ambari-trunk-test-patch/3589//testReport/
Console output:
https://builds.apache.org/job/Ambari-trunk-test-patch/3589//console
This message is automatically generated.
> 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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