[ZOOKEEPER-2549] As NettyServerCnxn.sendResponse() allows all the exception to bubble up it can stop main ZK requests processing thread

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.5.1
• Component/s: server
• Labels: pull-request-available
• Assignee: Yuliya Feldman
• Reporter: Yuliya Feldman
• Created: 03/Sep/16 06:39
• Updated: 15/Jun/23 21:09

Description

As NettyServerCnxn.sendResponse() allows all the exception to bubble up it can stop main ZK requests processing thread and make Zookeeper server look like it is hanging, while it just can not process any request anymore.

Idea is to catch all the exceptions in NettyServerCnxn.sendResponse() , convert them to IOException and allow it propagating up

Issue Links

• is related to: ZOOKEEPER-1364 Add orthogonal fault injection mechanism/framework
• links to: GitHub Pull Request #99
• links to: GitHub Pull Request #99