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https://issues.apache.org/jira/browse/ZOOKEEPER-4021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lyg updated ZOOKEEPER-4021:
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Environment: Linux version 3.10.0-1127.13.1.el7.x86_64 (was: CentOS Linux
release 7.8.2003 (Core))
> Zookeeper C Client ERROR about poll
> -----------------------------------
>
> Key: ZOOKEEPER-4021
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4021
> Project: ZooKeeper
> Issue Type: Bug
> Components: c client
> Affects Versions: 3.7.0
> Environment: Linux version 3.10.0-1127.13.1.el7.x86_64
> Reporter: lyg
> Priority: Critical
>
> 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.
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