Recently I've been running the SSH command line php bin/magento indexer:reindex

But twice in 3 days it starts to hang after Catalog Product Rule index has been successfully rebuilt..

My server ticket support told me "There are a few reindex processes locked by another reindex process"

What does that mean and why does it happen?

The ones I can see were locked on SSH were: 1. Customer Grid Index 2. Design config grid index


1 Answer 1


Try below command

php bin/magento indexer:reset
php bin/magento indexer:reindexing

You can take more information here : Magento 2 How to unlock reindex process

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