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https://issues.apache.org/jira/browse/AMBARI-22387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doroszlai, Attila reopened AMBARI-22387:
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Hi [~dmitriusan], unused import causes build failure on trunk, can you please
remove?
{noformat}
[INFO] --- maven-checkstyle-plugin:2.17:check (checkstyle) @ ambari-server ---
[INFO] Starting audit...
[ERROR]
ambari-server/src/main/java/org/apache/ambari/server/checks/LZOCheck.java:22:8:
Unused import - java.util.Set. [UnusedImports]
Audit done.
{noformat}
> Create a Pre-Upgrade Check Warning About LZO
> --------------------------------------------
>
> Key: AMBARI-22387
> URL: https://issues.apache.org/jira/browse/AMBARI-22387
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.6.1
> Reporter: Dmitry Lysnichenko
> Assignee: Dmitry Lysnichenko
> Priority: Blocker
> Fix For: 2.6.1
>
> Attachments: AMBARI-22387.patch
>
>
> Ambari has removed its native support of distributing and installing LZO when
> the LZO codecs are enabled in {{core-site}}. For existing clusters where LZO
> is enabled, this means that performing an upgrade will now require manual
> user intervention to get the LZO packages installed.
> A pre-upgrade check should be created which checks to see if LZO is enabled
> in the cluster and then produces a {{WARNING}} to the user letting them know
> that before upgrading, they'd need to distribute the appropriate LZO packages.
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