[ROCKETMQ-175] Consumer may miss messages because of inconsistent subscription

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0-incubating
• Fix Version/s: 4.1.0-incubating
• Component/s: rocketmq-broker
• Assignee: Eric Liu
• Reporter: Eric Liu
• Created: 13/Apr/17 07:18
• Updated: 26/May/17 07:24
• Resolved: 26/May/17 07:17

Description

When consumers in one group have different subscriptions(with tag), broker will select the one has latest client version. Although when this consumer shutdown, broker would not update the subscription until someone in group restart, so other consumers will miss messages by the dead consumer's tag.

Broker should refresh the group's subscriptions when someone was off-line.

Issue Links

• links to: GitHub Pull Request #92