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I am writing some code where we are inserting 200,000 items into an ElasticSearch index.
Whilst this works fine, when we get a count of items in the index to ascertain everything went in, we are not getting the same number. However, if we wait a second or two, the count is correct.
Therefore, is there a programmatic way we can get a real count from ElasticSearch without having to sleep or similar?
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You can use cURL in a UNIX terminal or Windows command prompt, the Kibana Console UI, or any one of the various low-level clients available to make an API call to get all of the documents in an Elasticsearch index. All of these methods use a variation of the GET request to search the index.
The track_total_hits parameter allows you to control how the total number of hits should be tracked. Given that it is often enough to have a lower bound of the number of hits, such as "there are at least 10000 hits", the default is set to 10,000 .
The count API allows you to execute a query and get the number of matches for that query. The query can either be provided using a simple query string as a parameter, or using the Query DSL defined within the request body.
Newly indexed records become visible in search results only after the Refresh operation. Refresh is called automatically with frequency specified by index.refresh_interval setting, which is 1s by default. When writing elasticsearch tests, it's customary to call refresh after indexing to make sure that all indexed records are available in searches. However, excessive refresh calls (after each record, for example) in production code might hamper the elasticsearch indexing performance.
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