[ZOOKEEPER-4021] Zookeeper C Client ERROR about poll

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 3.7.0
• Component/s: c client
• Labels: pull-request-available

Environment

Linux version 3.10.0-1127.13.1.el7.x86_64

• Assignee: Unassigned
• Reporter: lyg
• Created: 03/Dec/20 06:51
• Updated: 09/Jul/21 01:48

Description

  Zookeeper c client request server by dns ， when the zookeeper server and dns server down at the same time ， c client poll will  set  revent to POLLNVAL .  At this time The parameter timeout of poll  is not valid. it cause very frequent requests and high cpu use.

Issue Links

• links to: GitHub Pull Request #1680