Magento 2 Reindexing - One or more indexers are invalid. Make sure your Magento cron job is running

to reindex in magento 2, go to the CLI and then the root folder of your magento installation and run the below command :

php bin/magento indexer:reindex

Run this command in your CLI

php bin/magento indexer:reindex

and if you want to reindex only one indexer then write following command:

php bin/magento indexer:reindex indexer_name.

where indexer_name can be found by typing following command :

php bin/magento indexer:info

Here is how you can get things done using Magento 2 CLI indexing commands

Get into your Magento CLI command file available in Magento/bin directory cd magento_folder/bin and run your comamnd directly using magento in terminal or putty.

Here is how it will work for indexing in Magento 2

Get list of available indexer in Magento 2

php bin/magento indexer:info

How to check status of indexer

Following command will get you the status of all the indexer whether indexing is required or ready.

php bin/magento indexer:status

You can also check status of individual indexer: let say i want to check status of catalog_category_product

php bin/magento indexer:status catalog_category_product

How to reindex all available indexing in Magento 2

php bin/magento indexer:reindex

In case you fill memory limit, try this command

php bin/magento -dmemory_limit=2G magento indexer:reindex