[NIFI-8785] AvroReader controller can't get confluent schema IDs except only the latest

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.12.1
• Fix Version/s: 1.15.0
• Component/s: Extensions
• Environment: CentOS7
• Flags: Important
• Assignee: Pierre Villard
• Reporter: Arsen Tavitov
• Created: 15/Jul/21 07:53
• Updated: 30/Jul/21 21:19
• Resolved: 30/Jul/21 21:19

Description

While trying to read Confluent Schema Registry Avro files(from Kafka) with different schema IDs with AvroReader controller error "could not get Schema with id: <schema id>" appears.

NiFi version: 1.12.1
Confluent Schema Registry version: 5.5.2

Using the following test flow in Nifi

ConsumeKafka_2_6 1.12.1 ---> ConvertRecord 1.12.1

In ConvertRecord processor we are using AvroReader controller as record reader.
AvroReader controller properties:

• schema access strategy: confluent content-encoded schema reference
• schema registry: Confluent Schema Registry controller 
• schema name: ${schema.name} (default value)
• schema version: no value set
• schema branch: no value set
• schema text: ${schema.text} (default value)
• cash size: 1000 (default value)

Similar issue:
https://community.cloudera.com/t5/Support-Questions/Nifi-ConsumeKafakRecord-0-11-Throws-Error-quot-Could-not/td-p/185636 

Issue Links

• links to: GitHub Pull Request #5250