Index Level Setting in 5.2.2 after migration from 2.3.1

Elastic Stack Elasticsearch
1

Hi,

I am migrating to Elastic Search 5.2.2 from 2.3.1, we have successfully migrated index from 2.3.1 to 5.2.2 through Snapshot and Restore.

I have following Index level settings in 2.3.1(Configured in yml), so will migrated indices have this setting at index of 5.2.2

index.query.bool.max_clause_count: 1000000
index.merge.scheduler.max_thread_count: 1
index.max_result_window: 10000

Or do I have to add this setting explicitly on all indices.
If yes, then what is recommended way from ElasticSearch to assign setting to migrated indices.

Thanks,
Amit

2

Some of those settings are pretty excessive, why do you have them?

You will need to set them per index using the APIs.

3

Thanks for Response.

So suppose I have to apply "index.max_result_window: 10000" to indices migrated from 2.3.1 to 5.2.2, so should I Re-Index it?

4

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