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We have installing magento2.4.2 with Elasticsearch 7. reindex not running. facing some issues:

Catalog Search index process unknown error:

 {"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"name cannot be empty string"}],"type":"illegal_argument_exception","reason":"name cannot be empty string"},"status":400}
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  • 1
    Check which product name is empty. Some required field value pass empty to ES. Commented Jul 30, 2021 at 12:07
  • Es mapped and Successfully tested but i run the reindex comments showing this issues. Commented Jul 31, 2021 at 6:57

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Check your ElasticSearch version is that issue of version .

https://devdocs.magento.com/guides/v2.4/install-gde/system-requirements.html

Magento 2.4.2 requires elasticsearch 7.9 .

Check Version using Curl from Command Line

curl -XGET 'http://localhost:9200'
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  • now we have using magento2.4.2 and elasticsearch 7.9 but showing same issues. Commented Aug 3, 2021 at 7:52
  • Catalog Search index process unknown error: {"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"name cannot be empty string"}],"type":"illegal_argument_exception","reason":"name cannot be empty string"},"status":400} Commented Aug 3, 2021 at 7:52
  • now its showing this issues please help on this issues - {"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"name cannot be empty string"}],"type":"illegal_argument_exception","reason":"name cannot be empty string"},"status":400} Commented Aug 3, 2021 at 8:39
  • curl -XGET 'elasticsearch-host:9200' please replace the elasticsearch-host and share the output of elasticsearch . Commented Aug 5, 2021 at 16:59
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I have solved this problem. i have removed without name in unwanted attributes. and run the reindex its working. enter image description here

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