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
The “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]"}
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- Product information may become outdated.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.
- Downgrade Elasticsearch to version 7.x or upgrade Magento to the latest compatible version.
- Check current versions:
curl -XGET localhost:9200 # Check Elasticsearch version
php bin/magento config:show catalog/search # Confirm Magento settings
- 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
- Configure Magento search:
php bin/magento config:set catalog/search/engine elasticsearch7
2. Incorrect Index Configuration
Misconfigured index settings or incorrect index naming conventions.
Click here for the Solution.
- Reset and reindex:
php bin/magento indexer:reset
php bin/magento elasticsearch:index:reset
php bin/magento index:reindex
- Verify configuration:
php bin/magento config:show catalog/search
3. Permissions and Access Issues
Insufficient permissions blocking indexing.
Click here for the Solution.
- Set correct directory permissions:
sudo chown -R www-data:www-data /path/to/magento
sudo chmod -R 755 /path/to/magento
- Adjust Elasticsearch access settings:
sudo chmod 755 /etc/elasticsearch
sudo chmod 644 /etc/elasticsearch/elasticsearch.yml
4. Outdated Magento Modules
Incompatible third-party extensions or modules.
Click here for the Solution.
- Update Magento modules:
composer update
php bin/magento setup:upgrade
php bin/magento setup:di:compile
- Disable conflicting extensions:
php bin/magento module:disable ModuleName - Test in a staging environment before deploying changes.
5. Incorrect URI Formatting
Malformed URI or incorrect endpoint specification.
Click here for the Solution.
- Ensure correct API syntax and check URI formatting:
curl -v http://localhost:9200/_cluster/health
php bin/magento config:show catalog/search
- Use Postman or similar tools to validate API requests.
6. Server Configuration Problems
Web server misconfiguration blocking Elasticsearch communication.
Click here for the Solution.
- Update Nginx configuration:
location /elasticsearch {
proxy_pass http://localhost:9200;
proxy_http_version 1.1;
proxy_set_header Connection "";
}
- Restart services and monitor logs:
sudo systemctl restart nginx
sudo tail -f /var/log/nginx/error.log
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
0 Comments