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https://issues.apache.org/jira/browse/KAFKA-3100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15098316#comment-15098316
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ASF GitHub Bot commented on KAFKA-3100:
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GitHub user ijuma opened a pull request:
https://github.com/apache/kafka/pull/773
KAFKA-3100; Broker.createBroker should work if json is version > 2 and
still compatible
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ijuma/kafka
kafka-3100-create-broker-version-check
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/773.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #773
----
commit cab20ca25a317a04818acf3ec81ea8e082ce9b7a
Author: Ismael Juma <[email protected]>
Date: 2016-01-14T16:07:26Z
Broker.createBroker should work if json is version > 2 and still compatible
----
> Broker.createBroker should work if json is version > 2, but still compatible
> ----------------------------------------------------------------------------
>
> Key: KAFKA-3100
> URL: https://issues.apache.org/jira/browse/KAFKA-3100
> Project: Kafka
> Issue Type: Improvement
> Components: core
> Affects Versions: 0.9.0.0
> Reporter: Ismael Juma
> Assignee: Ismael Juma
> Fix For: 0.9.0.1
>
>
> Description from Jun:
> In 0.9.0.0, the old consumer reads broker info directly from ZK and the code
> throws an exception if the version in json is not 1 or 2. This old consumer
> will break when we upgrade the broker json to version 3 in ZK in 0.9.1, which
> will be an issue. We overlooked this issue in 0.9.0.0. The easiest fix is
> probably not to check the version in ZkUtils.getBrokerInfo().
> This way, as long as we are only adding new fields in broker json, we can
> preserve the compatibility.
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