Non realtime aspects of ES

Elastic Stack Elasticsearch
1

I notice that if I update a document in ES and then immediately query, the change is not reflected. If I query a 2nd time, say 500ms later, the change is reflected. Is this expected behavior? If so, is there a way I can get a callback from ES using the elasticsearch NPM module that only calls me back with success or failure once the change is permanent and queriable by subsequent queries?

2

This is expected. This is how refresh works.

You can wait for the next refresh if needed with refresh=wait_for

See https://www.elastic.co/guide/en/elasticsearch/reference/5.6/docs-refresh.html

3

https://www.elastic.co/guide/en/elasticsearch/guide/2.x/inside-a-shard.html has a good background on this.

4

Thanks. I’ll read up on this.

5

Awesome, thanks Mark. I’ll check this out.

6

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