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‘No Handler Found for URI’ Error in Magento 2 Elasticsearch

by | Feb 14, 2025

Learn how to fix the ‘No Handler Found for URI’ error in Magento 2 Elasticsearch. Our Magento Support team is here to help you with your questions and concerns.

‘No Handler Found for URI’ Error in Magento 2 Elasticsearch

'No Handler Found for URI' Error in Magento 2 ElasticsearchThe “No handler found for URI” error in Magento 2 is a Elasticsearch-related issue that affects search and indexing functionality, affecting the overall user experience and business operations.

This error appears in system logs as:

{"error":"No handler found for uri [/index_name/document_type] and method [PUT/POST]"}Copy Code

This error occurs due to:

  • Invalid URI (index path)
  • Unsupported HTTP method (PUT/POST)
  • Compatibility issues between Magento and Elasticsearch versions

Impacts of the Error

  • Users cannot search for products.
  • Items may not appear in the store.
  • Catalog updates may halt completely.
  • Users struggle to find products.
  • No results appear.
  • Reduced engagement and sales.
  • Breaks the Magento-Elasticsearch connection.
  • Automatic product updates fail.
  • Product information may become outdated.
  • Search-related failures disrupt operations.
  • Site responsiveness suffers.
  • Reduced search rankings.

Causes and Fixes

1. Elasticsearch Version Incompatibility

Magento 2.4.5 and earlier versions do not support Elasticsearch 8.x.

Click here for the Solution.
  1. Downgrade Elasticsearch to version 7.x or upgrade Magento to the latest compatible version.
  2. Check current versions: 
    
curl -XGET localhost:9200  # Check Elasticsearch version
php bin/magento config:show catalog/search  # Confirm Magento settings
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  3. Downgrade Elasticsearch: 
    sudo apt-get remove elasticsearch
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.6.2-amd64.deb
sudo dpkg -i elasticsearch-7.6.2-amd64.deb
Copy Code
  4. Configure Magento search: 
    php bin/magento config:set catalog/search/engine elasticsearch7Copy Code

2. Incorrect Index Configuration

Misconfigured index settings or incorrect index naming conventions.

Click here for the Solution.
  1. Reset and reindex: 
    
php bin/magento indexer:reset
php bin/magento elasticsearch:index:reset
php bin/magento index:reindex
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  2. Verify configuration: 
    php bin/magento config:show catalog/searchCopy Code

3. Permissions and Access Issues

Insufficient permissions blocking indexing.

Click here for the Solution.
  1. Set correct directory permissions: 
    sudo chown -R www-data:www-data /path/to/magento
sudo chmod -R 755 /path/to/magento
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  2. Adjust Elasticsearch access settings: 
    sudo chmod 755 /etc/elasticsearch
sudo chmod 644 /etc/elasticsearch/elasticsearch.yml
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4. Outdated Magento Modules

Incompatible third-party extensions or modules.

Click here for the Solution.
  1. Update Magento modules: 
    
composer update
php bin/magento setup:upgrade
php bin/magento setup:di:compile
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  2. Disable conflicting extensions: 
    php bin/magento module:disable ModuleNameCopy Code
  3. Test in a staging environment before deploying changes.

5. Incorrect URI Formatting

Malformed URI or incorrect endpoint specification.

Click here for the Solution.
  1. Ensure correct API syntax and check URI formatting: 
    curl -v http://localhost:9200/_cluster/health
php bin/magento config:show catalog/search
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  2. Use Postman or similar tools to validate API requests.

6. Server Configuration Problems

Web server misconfiguration blocking Elasticsearch communication.

Click here for the Solution.
  1. Update Nginx configuration: 
    
location /elasticsearch {
proxy_pass http://localhost:9200;
proxy_http_version 1.1;
proxy_set_header Connection "";
}
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  2. Restart services and monitor logs: 
    
sudo systemctl restart nginx
sudo tail -f /var/log/nginx/error.log
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Prevention Strategies

  • Regularly check version compatibility between Magento and Elasticsearch.
  • Keep Magento and Elasticsearch updated.
  • Test changes in a staging environment before production deployment.
  • Monitor Elasticsearch logs for early issue detection.

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

In brief, our Support Experts demonstrated how to fix the ‘No Handler Found for URI’ error in Magento 2 Elasticsearch

Related posts:

  1. Disable ElasticSearch Magento 2: Easy setup Guide
  2. Configure Magento 2 Elasticsearch: Easy setup Guide
  3. Restart Elasticsearch Magento 2: How to?
  4. Bitnami Magento Docker: Set up process

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Related Articles

  1. Disable ElasticSearch Magento 2: Easy setup Guide
  2. Configure Magento 2 Elasticsearch: Easy setup Guide
  3. Restart Elasticsearch Magento 2: How to?
  4. Bitnami Magento Docker: Set up process

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