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NSI Registry Engineering & Operations Update

NSI Registry Engineering & Operations Update. Ari Balogh VP of Engineering abalogh@netsol.com. High-Level Architecture. Registrar Growth. Average Daily Transactions. Qtr to 5/31. In millions, compared to Original Plan and New Projections (peak of 27.5M). Total Transactions Summary.

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NSI Registry Engineering & Operations Update

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  1. NSI Registry Engineering& Operations Update Ari Balogh VP of Engineering abalogh@netsol.com

  2. High-Level Architecture

  3. Registrar Growth

  4. Average Daily Transactions Qtr to 5/31 In millions, compared to Original Plan and New Projections (peak of 27.5M)

  5. Total Transactions Summary In millions 19% 145% 38% 33% 38% 88% 49%

  6. Availability & Performance Service Level Agreement (SLA) allowances: 8 hours total outage per month, 4 hours unplanned 3 seconds average for check domain (excluding worst 5%) 5 seconds average for add domain (excluding worst 5%) January observed performance: 3.5 hours planned outage to implement governance issues, no unplanned 600 ms per check domain, 2.5 seconds per add February observed performance No planned or unplanned outages 700 ms per check domain, 2.6 seconds per add

  7. Availability & Performance March observed performance Two 2 hour planned outages, 1.25 hour unplanned outage 60 ms per check domain, 300 ms per add April observed performance 2.5 hours planned outage, no unplanned 78.5 ms per check domain, 319.5 ms per add May observed performance 2 hours planned outage, no unplanned 34.7 ms per check domain, 257.2 ms per add

  8. A Root Performance - UDP Packets/Second 5 Minute Average 30 Minute Average

  9. A Root Performance - Drops & Overflows Drops - 5 Minute Average Overflows - 5 Minute Average

  10. J gTLD Performance - UDP Packets/Second 5 Minute Average 30 Minute Average

  11. M gTLD Performance - UDP Packets/Second 5 Minute Average 30 Minute Average

  12. The Infrastructure Problem SLA that incurs $500K/day outage and performance penalties Single shared database experiencing 30% - 90% per month OLTP growth Heavyweight stored procedures Sustained 50%-70% utilization with peaks to 100% … and no more easy software fixes Increasing extract duration for zones, Whois, registrar extracts, 5 - 14 hours Immature or end-of-life HA options for E4500 Sun, Veritas, EMC version and support issues

  13. DB Server Evaluation Evaluated top Unix machines Sun E10000, HP V2500, IBM S7A/S80 Narrowed to E10000 and S7A/S80 Conducted three month live test of S7A/S80 Ported gateway and application servers to IBM Java environment Created RRP path configuration Demonstrated performance and availability (HA/CMP) Investigated impacts of E10K Different administrative model EMC integration issues

  14. Definitive Results • Excellent Java and C code portability • S80 clear performance leader, benchmarks and real-world • Approximately 3 times the throughput per CPU vs. E10K • Noticeably improved Java performance (!) • Robust HA implementation • Complete 64-bit environment • Native file system and volume management; excellent EMC integration • Impressive and thorough support • Demonstrated appreciation for multi-vendor, mission critical computing

  15. Scaling DNS Domain name resolutions on A Root 4Q99 - 220M per day 1Q00 - 430M per day 2Q00 - 650M per day 4Q00 - 1.5B per day, more? Need 64-bit machines to scale past 4GB/23M domain name wall Developing bind extensions for high performance gTLD

  16. 64-bit DNS Evaluation Engaged Unix vendors to aid with in-house evaluation of 64-bit mid-range Unix servers HP N4000, IBM H70, Sun E3500 E3500 eliminated early -- scale and 64-bit issues H70 within 15% of N4000, upcoming upgrade substantially faster Chose M80 as new root/gTLD platform Using E4500s as alternate platform and placeholder for UltraSparcIII generation

  17. The Dot Problem Resolutions per day. A Root meltdown?

  18. Dot Diagnosis and Fix Too much load for existing E450 Qualified and put into production the [evaluation] H70 Greater than 60% increased throughput Jump from 220M resolutions per day to over 400M Qualified and put into production an S80 as placeholder for upcoming M80 deployment Greater than factor of three improvement over previous E450 Tweaked TCP keepalive defaults and bind select loop Filtered dynamic updates

  19. The New Dot A Root resolutions per day with H70

  20. Packet Drops Percent packets dropped, day of H70 deployment Deployed 11 a.m. “Current” time (9 a.m. day after)

  21. Upcoming access -www.dnsentral.net

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