Livy Appendix: Quick Reference

Appendix A: Quick Reference

Installation Commands

# Install mpacks ambari-server install-mpack --mpack=<path-to-mpack> --verbose ambari-server restart

Port Reference

Livy Version	Default Port	Alternative Ports
3.5.5	8355	8350-8359
3.5.1	8351	8350-8359
3.3.3	8333	8330-8339

Common API Endpoints

# Version info curl http://<host>:<port>/version # List sessions curl http://<host>:<port>/sessions # Create session curl -X POST http://<host>:<port>/sessions -H "Content-Type: application/json" -d '{...}' # Get session curl http://<host>:<port>/sessions/{session-id} # Delete session curl -X DELETE http://<host>:<port>/sessions/{session-id} # List batches curl http://<host>:<port>/batches # Submit batch curl -X POST http://<host>:<port>/batches -H "Content-Type: application/json" -d '{...}'

Configuration Locations

# Livy 3.5.5 /etc/livy3/conf/livy.conf /etc/livy3/conf/livy-env.sh # Livy 3.3.3 /etc/livy3_3_3_3/conf/livy.conf /etc/livy3_3_3_3/conf/livy-env.sh # Livy 3.5.1 /etc/livy3_3_5_1/conf/livy.conf /etc/livy3_3_5_1/conf/livy-env.sh

Log Locations

# Livy 3.5.5 /var/log/livy3/livy-livy-server.out # Livy 3.3.3 /var/log/livy333/livy-livy-server.out # Livy 3.5.1 /var/log/livy351/livy-livy-server.out

Appendix B: API Version Compatibility Matrix

Feature	Livy 3.3.3	Livy 3.5.1	Livy 3.5.5
Interactive Sessions	✅	✅	✅
Batch Jobs	✅	✅	✅
Python Sessions	✅	✅	✅
R Sessions	✅	✅	✅
Scala Sessions	✅	✅	✅
Kerberos Auth	✅	✅	✅
SSL/TLS	✅	✅	✅
Session Pooling	⚠️ Limited	✅	✅ Enhanced
Metrics API	⚠️ Basic	✅	✅ Enhanced
Async Operations	✅	✅	✅ Improved

Last updated on Jan 28, 2026

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