Replication lag vs ISE

• Problem: The database slave had a big problem with replication lag. Exports and BI tools had issues because of that.

• Solution: Job exports were switched fully to Manticore search engine. We changed the mailing process for saved search, and the mail body is no longer saved in the database.

• Results: Much smaller replication lag and lower load on DB, better response times. We achieve better results with less (12,5%) hardware. Josua sleeps better.

Replication lag vs ISE

New search backend based on xMP ES

What's happened in the last 3 weeks?

• xMP ES instances for Stage and Production + deployment pipelines
• multiple fixes and adjustments
• technical documentation as GitLab pages in HTML format
• deployed to Stage

New search backend based on xMP ES

What next?

• deploy to Production
• result quality validation by AI tools
• A/B tests in some countries