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From Jean-Baptiste Onofré (JIRA) <j...@apache.org>
Subject [jira] [Commented] (KARAF-4753) Kafka appender highly uses CPU when using non existing DNS server name
Date Fri, 21 Oct 2016 11:38:58 GMT

    [ https://issues.apache.org/jira/browse/KARAF-4753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15594861#comment-15594861
] 

Jean-Baptiste Onofré commented on KARAF-4753:
---------------------------------------------

It could be related to {{ConsumerConfig.WorkerThresholdTimeWindow}} Kafka unset consumer configuration.
The {{FailureCounter}} can loop infinitely.

> Kafka appender highly uses CPU when using non existing DNS server name
> ----------------------------------------------------------------------
>
>                 Key: KARAF-4753
>                 URL: https://issues.apache.org/jira/browse/KARAF-4753
>             Project: Karaf
>          Issue Type: Bug
>          Components: decanter
>            Reporter: Jean-Baptiste Onofré
>            Assignee: Jean-Baptiste Onofré
>            Priority: Minor
>             Fix For: decanter-1.3.0
>
>
> If you add a DNS name for Kafka for a not existing server, the appender will result in
a very high CPU usage (near to 100%).
> This will also be the case, when you define mutliple kafka server locations and if just
one of the DNS names are not resolved.



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