Chris Sampson created NIFI-11480:
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Summary: PutElasticsearchRecord should output _bulk api response
errors as flowfile attributes
Key: NIFI-11480
URL: https://issues.apache.org/jira/browse/NIFI-11480
Project: Apache NiFi
Issue Type: Improvement
Reporter: Chris Sampson
https://github.com/apache/nifi/pull/6903 for NIFI-11111 introduced a
[conversation|https://github.com/apache/nifi/pull/6903#issuecomment-1513872398]
about outputting the response error details for Records that are not processed
by Elasticsearch.
The same PR introduces a new {{elasticsearch.bulk.error}} attribute for the
{{PutElasticsearchJson}} processor, but explains why [it's not so simple for
PutElasticsearchRecord|https://github.com/apache/nifi/pull/6903#issuecomment-1514554132]
due to input FlowFiles potentially containing many Records and there being no
obvious way of expressing error details for all such Records in the single
output flowfile.
One [suggested
approach|https://github.com/apache/nifi/pull/6903#issuecomment-1517903668]
would be to "partition" the output {{errors}} Records into multiple flowfiles,
grouped by the error {{type}} provided by Elasticsearch. This {{type}} could
then be added to the flowfile(s) as the {{elasticsearch.bulk.error}} attribute.
Flows could then {{RouteOnAttribute}} if they wanted to handle certain
Elasticsearch errors in particular ways. Leaving all errors flowfiles in the
same output queue avoids the problem of the [large (and changing) number of
potential Elasticsearch error
types|https://github.com/apache/nifi/pull/6903#issuecomment-1517863606]
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