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https://issues.apache.org/jira/browse/KAFKA-9785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17070759#comment-17070759
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Luke Chen commented on KAFKA-9785:
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[~startjava], please check below link for how to increasing replication factor.
In short, use _{{bin}}{{/kafka-reassign-partitions}}{{.sh}}_ instead. Thanks.
https://kafka.apache.org/documentation/#basic_ops_increase_replication_factor
> use kafka-topics.sh can't --alter replication-factor???
> -------------------------------------------------------
>
> Key: KAFKA-9785
> URL: https://issues.apache.org/jira/browse/KAFKA-9785
> Project: Kafka
> Issue Type: Test
> Reporter: startjava
> Priority: Major
>
> ghy@ghy-VirtualBox:~/T/k/bin$ ./kafka-topics.sh --alter --topic my3
> --bootstrap-server localhost:9081 --replication-factor 4 --partitions 3
> Option "[replication-factor]" can't be used with option "[alter]"
>
> show bottom info !!
>
> Can update the documentin in the new kafka *.sh, now show old kafak doc
> info.....
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