ElasticSearch (R)Evolution — You Know, for Search ... #bbuzz
summary
History of ElasticSearch adoption is brief; the rest focuses on concrete changes: shows rolling upgrades with zero downtime by mixing 5.6 and 6.3 nodes and reelecting masters live, demos the sequence numbers for efficient recovery that replay only 18 missed operations instead of full segment copies, explains disk flood-stage watermarks blocking writes at 95%, and gives a migration recipe — reindex with concatenated IDs — for the planned types removal.
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chapters (8)
- 0:00Start
- 1:36Questions: Answers
- 8:22Rolling Upgrades 6.0
- 13:45Floodstage Watermark 6.0
- 18:37Sequence Numbers 6.0
- 33:20Automatic Queue Resizing 6.0
- 34:14Adaptive Replica Selection 6.1 (enabled by default in 7.0)
- 37:18Shards 7.0
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