Handle missing Opensearch indices #3584
Merged
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PBENCH-1308
An Opensearch-based query like
/api/v1/datasets/{dataset}/values/iterations
requires that the{dataset}
have at least oneresult-data-sample
indexed document. However it doesn't actually check that this is true. This leads to an Opensearch query with a bad URL fragment causing an Opensearch error we report as an internal server error.This change detects early that the dataset has no indices for the required index root name, and fails with a meaningful message.