GitHub user vahidhashemian opened a pull request: https://github.com/apache/kafka/pull/1363
KAFKA-3664: Commit unsubscribed partitions of the new consumer on a subscription change When users are using group management, if they call consumer.subscribe() to change the subscription, the removed subscriptions will be immediately removed and their offset will not be committed. Also the revoked partitions passed to the ConsumerRebalanceListener.onPartitionsRevoked() will not include those partitions. This pull request fixes this issue by following the design suggested by @becketqin [here](https://issues.apache.org/jira/browse/KAFKA-3664?focusedCommentId=15274470&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15274470). You can merge this pull request into a Git repository by running: $ git pull https://github.com/vahidhashemian/kafka KAFKA-3664 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/kafka/pull/1363.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 #1363 ---- ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---