[SOLR-14592] Upgrade Zookeeper to 3.6.1

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.7
• Assignee: Erick Erickson
• Reporter: Erick Erickson
• Created: 25/Jun/20 00:43
• Updated: 04/Nov/20 15:21
• Resolved: 02/Jul/20 00:01

Description

We're two releases behind, seems like A Good Thing to upgrade. I'm usually reluctant to upgrade just before a release so I'll do this after the 8.6 branch is cut.

Shouldn't be a big deal, from Zookeeper:

"This is the second release for 3.6 branch.
It is a bugfix release and it fixes a few compatibility issues with applications built for ZooKeeper 3.5. The upgrade from 3.5.7 to 3.6.1 can be executed as usual, no particular additional upgrade procedure is needed. ZooKeeper 3.6.1 clients are compatible with 3.5 servers as long as you are not using new APIs not present in 3.5."

Issue Links

• contains: SOLR-14606 Upgrade Netty to 4.1.50
• links to: GitHub Pull Request #1634