Nov 2 · 1 min read
Great article! Thanks for sharing!
One question: In the reconcialliation section you talk about an entity mutation log/WAL which is replayed in case of failover to the remote site. Where is this WAL maintained? Since the data centre is down, this WAL is potentially unavailable too. And in case we are writing the WAL at the remote site (in sync/blocking manner), the system will suffer from the same latency issues as mentioned in the article.
Please throw some light on this.