Pquery_presentation_03 2
- 1. Introducing PQuery by Percona Open Source enterprise-class solutions Alexey Bychko, Lead Release Manager (Percona) Roel van de Paar, Senior QA Lead (Percona)
- 2. About Percona Percona Server for MySQL Percona XtraDB Cluster Percona XtraBackup Percona Toolkit 150+ staff members 30 countries of the world, 30 US states Perconians work remotely from their homes HQ in Raleigh, North Carolina, USA Founded in 2006, serving 3000 customers for 10 years Many customers are well-known brands Percona Server for MongoDB Percona Monitoring and Management
- 3. Percona Software Users in Russia & CIS * This information is available in the Internet and made public by these companies.
- 4. PQuery for multithreaded stress tests … and much more
- 5. For What and Why? Random Query Generator, pros & cons Why we started it? PQuery to solve RQG speed problems (at start) new opensource and free tool from Percona used in Percona on daily basis first and second generations of PQuery
- 6. First results to CRASH, to KILL and not to TEST speed is important! unexpected and great results don’t share prototypes! you can learn something only from logs PQuery framework has been created
- 7. The success of PQuery … and results in real life
- 8. First Success Stories automatic test case creation near 100% test reproducibility 15 seconds per trial single and multi-threaded tests sequential and random SQL valued tool in Percona QA evolution to powerful tool
- 9. PQuery is supported on *nix MySQL Server 5.7, RC1 & RC2, were tested with pquery a significant number of bugs were discovered in RocksDB ≈ 270 new bugs were found in 2 months query correctness testing •easy to build •easy to use •great flexibility
- 10. PQuery v2.0 … and even more
- 11. PQuery v1.0 -> v2.0 transition can we support PXC? other multi-node setups? produce different load to the different nodes? include / exclude some particular nodes? can we log extended information about queries? client output for comparison? reproduce something - log replaying?
- 12. PQuery v2.x changes => Isolated processes, fork() model => Configuration with rich INI file at start => Separated config for each node => Extended logging
- 13. PQuery to make the systems better … learn and understand that first
- 14. What may be better in your setup? do you need fine-tuning? what to optimize if yes? MySQL optimizations OS optimizations cluster optimizations troubleshooting
- 15. Outcome: do you need High-Load setup? ext4, xfs, zfs, ufs? LVM? virtualization or bare metal? get timings for ALL queries. not only for slow ones. look for dead or slow nodes different nodes -> different queries do the upgrade and run checks cluster behavior at whole
- 16. The future of PQuery … to make it even better
- 17. Possible future of PQuery PostgreSQL support? extended cluster and replication testing? production packages and tarballs comparing engines - timings, output, supported features, errors replay scenarios and mysql logs and much-much more …
- 18. Additional resources https://github.com/Percona-QA/pquery.git main repository https://goo.gl/nPAHVA Free MySQL QA & Bash/Linux Training Series MySQL QA Episodes 1-13. PQuery, Framework, Reducer How to download and use the best tasks to apply how to report the bugs and contribute how to share your success stories
- 19. Percona celebrates its 10th anniversary! Share your Percona success story with us for cross promotion => percona10@percona.com <= Send your CV to join our team! https://www.percona.com/about-percona/careers
- 20. Percona Live: Call for Papers Deadline - November 13 Percona Live Santa Clara to take place April 24-27 in Santa Clara, CA. Submission Guidelines: http://bit.ly/2exss8u Submission Form: http://bit.ly/2e01oT2