Uber migrated off DynamoDB and a blobstore to a ledger-style database. We'll talk about the details.

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Uber migrated their petabytes of data from DynamoDB and TerraBlob to LedgerStore with zero downtime. They used shadow validation and offline validation to ensure correctness and employed strategies like scaling slowly, batching backfills, rate control, and logging during the backfill process.

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<p>There are some errors and misinterpretations.
The original one is such a great article.</p>
<p><a href="https://www.uber.com/blog/migrating-from-dynamodb-to-ledgerstore/?uclick_id=d697afd1-25db-4d97-8d90-42996994d7c2&amp;utm_source=blog.quastor.org&amp;utm_medium=referral&amp;utm_campaign=how-uber-migrated-petabytes-of-data-with-zero-downtime" target="_blank" rel="noopener nofollow">https://www.uber.com/blog/migrating-from-dynamodb-to-ledgerstore/?uclick_id=d697afd1-25db-4d97-8d90-42996994d7c2&amp;utm_source=blog.quastor.org&amp;utm_medium=referral&amp;utm_campaign=how-uber-migrated-petabytes-of-data-with-zero-downtime</a></p>
