[NIFI-1629] Downgrade Kafka processors back to 0.8

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.6.0
• Assignee: Oleg Zhurakousky
• Reporter: Oleg Zhurakousky
• Created: 15/Mar/16 17:06
• Updated: 16/Mar/16 19:41
• Resolved: 16/Mar/16 19:41

Description

Also, the following needs to be added to ensure that Kafka failures do not affect NiFi operations
1) Add yield so when we don't have to ack anything or there is nothing to send we don't do onTrigger()
2) Appropriate hooks allowing Kafka processors to still exit whenever Kafka deadlocks