We had another Devopsicon — our internal engineering (un)conference. We record most of these company-internal sessions to ensure we can share the knowledge with those who were unable to attend, and to build a knowledge base over time. We have decided to go one step further and share some of these sessions...
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How we upgraded an old, 3PB large, Elasticsearch cluster without downtime. Part 1 - Introduction
Back in 2018, now five years ago, we published a blog post describing our 400+ node Elasticsearch cluster. In that post we brought up an important topic: So far, we have elected to not upgrade the cluster. We would like to, but so far there have been more urgent tasks. How we actually perform the upgrade is undecided, but it... Read the story