[AMBARI-15880] ATS heapsize cannot be changed in Ambari-2.2.1.1 or greater post Ambari Server upgrade, even though the bug should be fixed

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.4.0
• Assignee: Andrew Onischuk
• Reporter: Andrew Onischuk
• Created: 14/Apr/16 11:28
• Updated: 14/Apr/16 20:53
• Resolved: 14/Apr/16 17:25

Description

yarn-env had an issue where ATS heapsize was not getting set correctly
This was fixed in Ambari-2.1.0 for HDP 2.2 and Ambari-2.2.1.1 for HDP 2.3/2.4.
However, "ambari-server upgrade" does not fix yarn-env, even if the user has
never touched it.

STR:

• Install a HDP 2.4.0 cluster with YARN using Ambari 2.2.1.0
• Confirm that yarn-env has *export YARN_HISTORYSERVER_HEAPSIZE=`apptimelineserver_heapsize`* (this is incorrect)
• ambari-server stop
• Install ambari.repo for Ambari 2.2.1.1
• yum upgrade ambari-server
• ambari-server upgrade
• ambari-server start

Actual: yarn-env still has **export
YARN_HISTORYSERVER_HEAPSIZE=`apptimelineserver_heapsize`**
Expected: yarn-env has **export
YARN_TIMELINESERVER_HEAPSIZE=`apptimelineserver_heapsize`** instead

This means that changing "AppTimelineServer Java heap size" from the UI has no
effect on setting the actual heapsize for ATS.

Issue Links

• links to: ReviewBoard