[AMBARI-16026] YARN ATS Should Advertise a Version

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.4.0
• Component/s: ambari-server
• Assignee: Jonathan Hurley
• Reporter: Jonathan Hurley
• Created: 21/Apr/16 20:58
• Updated: 22/Apr/16 20:55
• Resolved: 22/Apr/16 18:21

Description

In YARN's metainfo.xml, ATS does not have a versionAdvertised element. As a result, the absence of this element causes Ambari to think that YARN is not part of the hdp-select logic and we will never validate that it is reporting the correct version on startup.

However, YARN ATS does have a version and an entry in hdp-select:

    if params.version and check_stack_feature(StackFeature.ROLLING_UPGRADE, params.version):
      conf_select.select(params.stack_name, "hadoop", params.version)
      stack_select.select("hadoop-yarn-timelineserver", params.version)

[root@c6401 ~]# cat /usr/bin/hdp-select | grep "timeline"
           "hadoop-yarn-timelineserver": "hadoop-yarn",
                         "hadoop-yarn-timelineserver"],

This actually causes the ATS component to say it has a VERSION_MISMATCH since upgrading HDP changes it's version when we were not expecting it to:

YARN_CLIENT 2.4.2.0-39 COMPLETE	UNKNOWN
APP_TIMELINE_SERVER	2.4.2.0-39 VERSION_MISMATCH	UNSECURED
ZOOKEEPER_SERVER	 2.4.2.0-39 COMPLETE	UNSECURED

Issue Links

• links to: Reviewboard