Migration Issue

Products

• CA API Gateway

Issue/Introduction

While migrating services using GMU from gateway 11.0  to 11.1.3 , Below was the issue encountered.

Export (migrateOut) completes successfully
Import (migrateIn --test) consistently fails with “Error writing to server”

- Source Gateway: 11.0.00-20489-CR04
- Target Gateway: 11.1.3-21907
- Database: MySQL
- Deployment: Appliance (single-node)
- GMU Version: 1.10.00-1988
- User: admin (Administrator role confirmed)
- Ports tested: 8443 and 9443 (same behavior)

Problem Evolution

1. Initial State
Error: “Unable to establish trust with the Gateway”
Cause: Gateway not fully initialized (DB mismatch, missing listeners)

2. After DB Upgrade
Gateway ports opened (8443/9443/8080)
Policy Manager accessible
Trust issue resolved

3. Current State
GMU connects successfully
Import fails during execution with “Error writing to server”

Environment

11.0

Resolution

it was a problem with the Gateway node itself , So a new Gateway instance had to be created and from there the upgrade took place from 11.0 to 11.1.x and it was successful