[NIFI-9513] Trying To fetch variables in NIFI-UI , we see servlet , jersey spring and service unavailable with status 503 error

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.12.1
• Fix Version/s: 1.15.0
• Component/s: Core Framework
• Labels: patch
• Environment: 5 nodes cluster ; ; Architecture: x86_64 ; CPU op-mode(s): 32-bit, 64-bit ; Byte Order: Little Endian ; CPU(s): 48 ; On-line CPU(s) list: 0-47 ; Thread(s) per core: 2
• Flags: Patch
• Assignee: Unassigned
• Reporter: Sai Shashank
• Created: 22/Dec/21 18:59
• Updated: 27/Dec/21 16:27
• Resolved: 27/Dec/21 16:25

Description

Hello ,

we observe the below error , whenever we tried to fetch the VARIBALES and data provenance from UI . 
Error

{ "servlet":"jerseySpring", "message":"Service Unavailable", "url":"/nifi-api/process-groups/xxx/variable-registry", "status":"503" }

Issue Links

• is fixed by: NIFI-9309 Improve UI responsiveness