[NIFI-8337] When reading FlowFile content, processor can start at wrong offset

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.13.1
• Fix Version/s: 1.14.0, 1.13.2
• Component/s: Core Framework
• Assignee: Mark Payne
• Reporter: Mark Payne
• Created: 17/Mar/21 17:28
• Updated: 18/Mar/21 16:46
• Resolved: 17/Mar/21 21:13

Description

Will attach a flow that replicates this issue.

With the given flow, the data that is routed from ConvertRecord should contain two FlowFile whose contents are:

{ "a" : "a" } 

and

{ "a" : "b" } 

However, the result is that both FlowFiles have content:

{ "a" : "a" } 

Issue Links

• causes: NIFI-8342 SplitJson corrupting flowfile content
• fixes: NIFI-7646 Improve performance of MergeContent / others that read content of many small FlowFiles
• relates to: NIFI-8334 EvaluateJsonPath regression in NiFi version 1.13.1
• links to: GitHub Pull Request #4910