Ad-hoc Deployment for Asr-Server

Scheduled Maintenance Report for Amadeus

Completed

πŸŽ‰ Deployment completed successfully. All services are up and running
Posted Jul 11, 2025 - 00:40 AEST

Update

πŸ”” Unmuting Datadog alerts
Posted Jul 11, 2025 - 00:20 AEST

Update

πŸ§ͺ Starting post-deployment testing to validate system stability and functionality.
Posted Jul 11, 2025 - 00:04 AEST

Verifying

Verification is currently underway for the maintenance items.
Posted Jul 10, 2025 - 23:50 AEST

Update

πŸ”„ Build completed. Starting the optimizer on all TMIs and grabber via admin portal.
Posted Jul 10, 2025 - 23:49 AEST

Update

βœ… Deployment triggered. Monitoring progress on GitHub.
Posted Jul 10, 2025 - 23:04 AEST

Update

πŸ›‘ stopped optimization on all TMIs. Moving to deployment trigger
Posted Jul 10, 2025 - 23:02 AEST

Update

βœ… Alerts on Datadog have been muted. Proceeding to stop optimization
Posted Jul 10, 2025 - 23:02 AEST

Update

πŸ”• Muting alerts on Datadog to avoid noise during deployment
Posted Jul 10, 2025 - 23:01 AEST

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jul 10, 2025 - 23:00 AEST

Scheduled

As part of our ongoing efforts to enhance system stability, an ad-hoc deployment is scheduled for tonight at 23:00 AEST.

This action follows a recent SEV2 incident where users experienced "Applying latest changes...". A detailed analysis using Java Flight Recorder identified inefficient garbage collection as the root cause.

βœ… Remediation Actions:
- Upgraded the Garbage Collector from CMS to G1GC
- Tuned JVM parameters to reduce GC pause times and improve session stability

These changes have been thoroughly validated in UAT, showing improved performance and no regressions.

πŸ•’ Deployment Details:
Component: asr-server
Expected Duration: ~1 hour

πŸ”” Please Note:
Slot optimization on all TMIs will be paused and resumed post-deployment.
All frozen slot data will remain intact and unaffected.

We appreciate your cooperation and understanding as we work to improve system performance and reliability.

πŸ“’ A follow-up notification will be sent upon successful completion.

Thank you!
Posted Jul 10, 2025 - 21:04 AEST
This scheduled maintenance affected: ASR API, AsA Metron Interface, and OGS Interface.