[ https://issues.apache.org/jira/browse/ATLAS-3874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ashutosh Mestry updated ATLAS-3874: ----------------------------------- Attachment: (was: ATLAS-3874-Notification-hook-processing-concurrent-e.patch) > NotificationHookConsumer: Shell Entity Resolution When Multiple Consumers > Process Same Entity > --------------------------------------------------------------------------------------------- > > Key: ATLAS-3874 > URL: https://issues.apache.org/jira/browse/ATLAS-3874 > Project: Atlas > Issue Type: Bug > Components: atlas-core > Affects Versions: 2.0.0, trunk > Reporter: Ashutosh Mestry > Assignee: Ashutosh Mestry > Priority: Major > Fix For: trunk > > > *Background* > Atlas has ability to consume messages from multiple hooks. When doing so, if > there are messages in multiple queue requesting creation of the same entity, > then this case leads to a race condition. > *Steps to Duplicate* > _Pre-requisites_ > Atlas should be configured to consume from 2 Kafka queues viz. _queue1_ and > _queue2_. > _Steps:_ > # Add a message in _queue1_ that references a non-existent entity. > # Add a message in _queue2_ that creates the entity in step 1. > _Expected behavior_: > Shell entity should get created in step 1 that is resolved into first class > entity in step 2. > _Actual behavior:_ > Shell entity is not resolved. A duplicate entity with same _qualifiedName_ > gets created. > *Root Cause* > The _NotificationHookConsumer_ is not aware of messages processed by other > consumers there by leading to concurrent entity creation. > -- This message was sent by Atlassian Jira (v8.3.4#803005)