[NIFI-8053] ReplaceText with Expression Language in Match Group results in Data Loss/Corruption

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Duplicate
• Affects Version/s: 1.11.4, 1.12.1
• Fix Version/s: 1.13.0
• Component/s: Extensions
• Environment: Running in Docker in Kubernetes on a Ubuntu Host
• Flags: Important
• Assignee: Unassigned
• Reporter: Robin Lutz
• Created: 30/Nov/20 14:50
• Updated: 01/Dec/20 13:23
• Resolved: 01/Dec/20 13:23

Description

This seems to be related to https://issues.apache.org/jira/browse/NIFI-7683

When I run a ReplaceText processor with multiple Threads and also manipulate the result within an expression (im my case ${'$1':escapeJson()}), the processor will corrupt (cut off) or loose data.

I attached a template that demonstrates the case.

I did not see these problems in 1.11.2, never tried 1.11.3, and have i since then with every release (1.12.0 and 1.12.1).

Finally, after noticing the bug mentioned above, I was able to reproduce the problem.

Blocker and Important, because the user can loose data.

Issue Links

• is fixed by: NIFI-7994 ReplaceText concurrency issue
• is fixed by: NIFI-8042 ReplaceText failing to update text when using Literal Replacement Strategy with Expression Language