When we migrated hundreds of millions of event records from Amazon Elasticsearch to AWS OpenSearch, we expected the hardest part to be the scale: multiple terabytes of data, thirteen monthly indices, and years of call history. The hardest part turned out to be a single line of JSON — and what it was silently about to do to 13,5MM documents.

Elasticsearch to OpenSearch: The migration that almost went silently wrong

Elasticsearch to OpenSearch

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yovanny-manosalva-iribarren

Yovanny is a Software Engineer at Aircall, looking after Aircall's infrastructure.

Yovanny Manosalva Iribarren

Articles by Yovanny

Elasticsearch to OpenSearch: The migration that almost went silently wrong

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