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From "Andrii Babiichuk (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-10119) Rolling Upgrade "Upgrade" Action Actually Starts "Install Versions"
Date Wed, 18 Mar 2015 12:39:38 GMT
Andrii Babiichuk created AMBARI-10119:
-----------------------------------------

             Summary: Rolling Upgrade "Upgrade" Action Actually Starts "Install Versions"
                 Key: AMBARI-10119
                 URL: https://issues.apache.org/jira/browse/AMBARI-10119
             Project: Ambari
          Issue Type: Bug
          Components: ambari-web
    Affects Versions: 2.0.0
            Reporter: Andrii Babiichuk
            Assignee: Andrii Babiichuk
            Priority: Critical
             Fix For: 2.0.0


I created a clean cluster with all services and enabled NameNode HA in preparation for an
upgrade. I distributed my new HDP version to all 20 hosts, but some hosts failed because of
repository issues.

I went to each failed host and manually retried the installation, which seems to work. When
I went to Manage Versions, it showed my new stack with only 18 out of 20 hosts upgraded. I
had to wait about 10 seconds for it to show me all 20 hosts had the correct stack version.


At this time, the "Install" button changed to "Upgrade". I hit Upgrade, but the second I hit
it all 20 hosts went down to 0 for "Installed" and instead of an upgrade, Ambari tried to
re-install the stack on all hosts that already had it. 

The installation went very quickly since all hosts already had the bits. 

I noticed that, in general, the Stacks and Versions section was slow to update, sometimes
showing me information from several minutes ago. For example, I had 14 hosts installed, but
it only said 4 were. As I waited, it eventually caught up.



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