Zeashan Pappa

Technology Executive and Architect, Privacera

Zeashan is a technology executive and architect who has 18+ years of enterprise software architecture, engineering, consulting, and project management expertise.

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Simplifying Disaster Recovery with Delta LakeSummit 2020

There's a need to develop a recovery process for Delta table in a DR scenario. Cloud multi-region sync is Asynchronous. This type of replication does not guarantee the chronological order of files at the target (DR) region. In some cases, we can expect large files to arrive later than small files. With Delta Lake, this can create an incomplete version at the DR site at the breakup point. The assumption is that the Primary (Prod) site is not reachable and therefore there’s a need to identify and fix the incomplete version of the Delta Lake table. Similar scenarios happen with RDBMS replication, they rely on their logs to restore the database to a stable version and run the recovery or reload process. This document will address this need and look for a solution that can be shared with customers.