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ASF GitHub Bot commented on KAFKA-3664: --------------------------------------- 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 ---- ---- > When subscription set changes on new consumer, the partitions may be removed > without offset being committed. > ------------------------------------------------------------------------------------------------------------ > > Key: KAFKA-3664 > URL: https://issues.apache.org/jira/browse/KAFKA-3664 > Project: Kafka > Issue Type: Bug > Reporter: Jiangjie Qin > Assignee: Vahid Hashemian > > 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 commit. Also the revoked partitions > passed to the ConsumerRebalanceListener.onPartitionsRevoked() will not > include those partitions. -- This message was sent by Atlassian JIRA (v6.3.4#6332)