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Posted to dev@kafka.apache.org by "Dmitry Pekar (JIRA)" <ji...@apache.org> on 2014/11/11 10:58:34 UTC
[jira] [Comment Edited] (KAFKA-1753) add --decommission-broker
option
[ https://issues.apache.org/jira/browse/KAFKA-1753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14206223#comment-14206223 ]
Dmitry Pekar edited comment on KAFKA-1753 at 11/11/14 9:58 AM:
---------------------------------------------------------------
[~nehanarkhede] Suppose we have a cluster [0..4] and want to remove broker 2. This could be archived, for instance, via:
--replace-broker 2 --broker-list 0,1,3,4
The implementation will read all topics/partitions, find those replicas that are hosted on broker 2 and redistribute them +/- fairly across brokers 0,1,3,4. This should not affect the replication factor at all.
This approach (using --replace-broker with --broker-list vs using --decommission-broker) gives us a wider applicability of the command. For instance, scenarios such as "remove broker 2 and redistribute its replicas between only broker 0 and 4" could be implemented using this approach.
was (Author: dmitry pekar):
[~nehanarkhede] Suppose we have a cluster [0..4] and want to remove broker 2. This could be archived, for instance, via:
--replace-broker 2 --broker-list 0,1,3,4
The implementation will read all topics/partitions, find those replicas that are hosted on broker 2 and redistribute them +/- fairly across brokers 0,1,3,4
This approach (using --replace-broker with --broker-list vs using --decommission-broker) gives us a wider applicability of the command. For instance, scenarios such as "remove broker 2 and redistribute its replicas between only broker 0 and 4" could be implemented using this approach.
> add --decommission-broker option
> --------------------------------
>
> Key: KAFKA-1753
> URL: https://issues.apache.org/jira/browse/KAFKA-1753
> Project: Kafka
> Issue Type: Sub-task
> Components: tools
> Reporter: Dmitry Pekar
> Assignee: Dmitry Pekar
> Fix For: 0.8.3
>
>
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