I/O scheduler for ES 7.0

Elastic Stack Elasticsearch
1

We are using ES 7.5.0 As per the documentation, selecting the correct i/o scheduler should optimize the ES performance. In our system when I checked in /sys/block/sdb/queue/scheduler, I could see 3 scheduler options

  1. noop
  2. deadline
  3. cfq

We are using azure blockstorage in our system. So which scheduler should be best for our configuration?

2

We used to recommend noop, but I don't know if that's still relevant. Hopefully someone else with more knowledge can comment :slight_smile:

3

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