One or more indexers are invalid. Make sure your Magento cron job is running

[yuwen_chen]

Hello, please answer. I ran the command:

php bin/magento indexer:reindex,

but the reconstruction still fails, and the following prompt appears:

php bin/magento indexer:reindex

Design Config Grid index has been rebuilt successfully in 00:00:00
Customer Grid index has been rebuilt successfully in 00:00:00
Category Products index has been rebuilt successfully in 00:00:00
Product Categories index has been rebuilt successfully in 00:00:00
Catalog Rule Product index has been rebuilt successfully in 00:00:00
Product EAV index has been rebuilt successfully in 00:00:00
Stock index has been rebuilt successfully in 00:00:00
Inventory index has been rebuilt successfully in 00:00:00
Catalog Product Rule index has been rebuilt successfully in 00:00:00
Product Price index has been rebuilt successfully in 00:00:00
Catalog Search index exception: Could not ping search engine: No alive nodes found in your cluster

The magento version is 2.4.

[gaurav_harsh1]

Hello @yuwen_chen 

Seems like Elasticsearch is not working properly on your server, restart Elasticsearch on your server by command :

sudo systemctl restart elasticsearch.service

and then do reindexing again.

Hope it helps !