[AMBARI-12232] upgradeHelper for a 2.1 -> 2.2 upgrade leaves Resource Manager unusable

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1.0
• Assignee: Andrew Onischuk
• Reporter: Andrew Onischuk
• Created: 01/Jul/15 07:36
• Updated: 01/Jul/15 12:39
• Resolved: 01/Jul/15 09:18

Description

PROBLEM: The upgradeHelper script when upgrading from 2.1 -> 2.2 sets up YARN
to use ZKRMStateStore. It also sets the zk-address to localhost:2181:

"yarn.resourcemanager.store.class": "org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore",
"yarn.resourcemanager.zk-address": "localhost:2181",

This leaves the RM unable to start because it has no quorum to connect to. The
upgradeHelper should either not set the ZKRMStateStore, or it should be trying
harder to populate a valid ZK quorum.

Issue Links

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