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https://issues.apache.org/jira/browse/KAFKA-10824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17246238#comment-17246238
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lqjacklee edited comment on KAFKA-10824 at 12/9/20, 1:50 AM:
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[~mohammadabboud] I can infer based on
* If 'closeMode' is `CloseMode.GRACEFUL`, the channel is disconnected
here, but outstanding receives
* are processed. The channel is closed when there are no outstanding
receives or if a send is
* requested. For other values of `closeMode`, outstanding receives are
discarded and the channel
* is closed immediately.
But I think the channel status is not related with consumer_offsets.
Please check the log for additional information.
was (Author: jack-lee):
[~mohammadabboud] I can infer based on
* If 'closeMode' is `CloseMode.GRACEFUL`, the channel is disconnected
here, but outstanding receives
* are processed. The channel is closed when there are no outstanding
receives or if a send is
* requested. For other values of `closeMode`, outstanding receives are
discarded and the channel
* is closed immediately.
But I think the channel status is not related with consumer_offsets.
> Connection to node -1 could not be established. Broker may not be available.
> ----------------------------------------------------------------------------
>
> Key: KAFKA-10824
> URL: https://issues.apache.org/jira/browse/KAFKA-10824
> Project: Kafka
> Issue Type: Bug
> Components: consumer, KafkaConnect, network, offset manager
> Affects Versions: 2.0.0, 2.1.1
> Reporter: Mohammad Abboud
> Assignee: lqjacklee
> Priority: Blocker
>
> After a specific running time, the consumer groups will become inactive,
> while trying to reset the offsets, I get the message "*Connection to node -1
> could not be established. Broker may not be available.
> (org.apache.kafka.clients.NetworkClient)*".
> My work around is to delete all the *consumer_offsets* folders and restart
> the server.
> below is the content of server.properties:
> listeners=PLAINTEXT://0.0.0.0:9092
> advertised.listeners=PLAINTEXT://Server01:9092
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