Acunu Cassandra London Meetup
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Richard Low of Acunu presented some performance results demonstrating how marvelous Acunu's distribution of Cassandra is compared to the vanilla version. There's a related blog post with updated range query results here: http://www.acunu.com/2011/03/cassandra-under-heavy-write-load-part-ii/
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Acunu Cassandra London Meetup
- 1. Cassandra performance testing Richard Low Software Engineer richard@acunu.com Cassandra London Meetup, 21 Mar 2011
- 3. Big Data? Scale, Performance, Low Cost: Need all 3 :-|
- 4. RDBMS ext3,... LVM RAID hardware
- 5. RDBMS ext3,... LVM RAID hardware
- 6. Big Data ext3,... LVM RAID hardware
- 7. Big Data ext3,... LVM RAID new HW!
- 9. Cassandra (vanilla) Cassandra (Acunu)
- 10. Cassandra (vanilla) Cassandra (Acunu) + performance
- 11. Cassandra (vanilla) Cassandra (Acunu) + performance + snapshots + clones
- 12. Cassandra (vanilla) Cassandra (Acunu) + performance + snapshots + clones + monitoring
- 14. Inserts • Single box, 24 GB RAM, 7 disks • 3 billion rows • 50 byte values • 8 byte keys • 1 column per row • Batch insert 100 at once
- 15. Random Inserts - Vanilla Cassandra
- 18. Insert summary Vanilla Cassandra Acunu Cassandra Insert time / hrs 26 18 Max 95th percentile latency / 37 0.3 s
- 19. If you only care about write performance, /dev/null is great (and web-scale)
- 20. Range queries • High insert rate no use if reads are slow • High insert rate can impact range query performance • Test: insert 100 million rows, with same properties as before • After inserts, immediately perform small range queries (get_range_slices with random start key)
- 22. Summary... • Strong foundations for Big Data with order of magnitude performance improvement • v1: Back Cassandra (+others) and tools without modification • Fast, robust, simple platform • Makes test/dev cycle more effective
Notas del editor
- Introduce me\n
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- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- Old\nOracle, MySQL, etc; on top of legacy FS, volume mgr, RAID, hardware\nNew\nNoSQL (to get horizontal scalability)\nHardware evolving fast - but not evenly\nStuff in the middle hasn’t changed much\n\n\n
- * performance is not just about speed, but also reliability + predictability ... \n* note the specific version tree, showing live / dev branches\n* monitoring goes from the cluster down to iostat\n* ... and includes management: easy cluster deployment\n* talk about performance here\n
- * performance is not just about speed, but also reliability + predictability ... \n* note the specific version tree, showing live / dev branches\n* monitoring goes from the cluster down to iostat\n* ... and includes management: easy cluster deployment\n* talk about performance here\n
- * performance is not just about speed, but also reliability + predictability ... \n* note the specific version tree, showing live / dev branches\n* monitoring goes from the cluster down to iostat\n* ... and includes management: easy cluster deployment\n* talk about performance here\n
- * performance is not just about speed, but also reliability + predictability ... \n* note the specific version tree, showing live / dev branches\n* monitoring goes from the cluster down to iostat\n* ... and includes management: easy cluster deployment\n* talk about performance here\n
- * performance is not just about speed, but also reliability + predictability ... \n* note the specific version tree, showing live / dev branches\n* monitoring goes from the cluster down to iostat\n* ... and includes management: easy cluster deployment\n* talk about performance here\n
- * performance is not just about speed, but also reliability + predictability ... \n* note the specific version tree, showing live / dev branches\n* monitoring goes from the cluster down to iostat\n* ... and includes management: easy cluster deployment\n* talk about performance here\n
- * performance is not just about speed, but also reliability + predictability ... \n* note the specific version tree, showing live / dev branches\n* monitoring goes from the cluster down to iostat\n* ... and includes management: easy cluster deployment\n* talk about performance here\n
- * performance is not just about speed, but also reliability + predictability ... \n* note the specific version tree, showing live / dev branches\n* monitoring goes from the cluster down to iostat\n* ... and includes management: easy cluster deployment\n* talk about performance here\n
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- e.g. facebook newsfeed, twitter stream\n
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