error after upgrade the new patch

If you get this problem

{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Unknown filter type [phonetic] for [phonetic]"}],"type":"illegal_argument_exception","reason":"Unknown filter type [phonetic] for [phonetic]"},"status":400}

Don't worry

This is because the lack of 2 plugins of elasticsearch are analysis-phonetic and analysis-icu

So, how to handle this problem?

- Get into your server by SSH root

- Move to where you set up for elasticsearch, you can find it by this command: whereis elasticsearch

By default, it is settled at /usr/share/elasticsearch

Then please follow these steps

1 - Move to where you set up for elasticsearch by this command: cd /usr/share/elasticsearch

2 - Set up plugin analysis-phonetic by the command: bin/elasticsearch-plugin install analysis-phonetic

3 - Set up plugin analysis-icu by the command: bin/elasticsearch-plugin install analysis-icu

4 - Restart elasticsearch by the command: sudo service elasticsearch restart

Finally run command setup:upgrade in the patch (php bin/magento setup:upgrade)