Cassandra Summit 2014: Down with Tweaking! Removing Tunable Complexity for Cassandra Performance and Administrator
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The document discusses OSv, an operating system designed to power virtual machines in the cloud, with features such as fast boot times and a unique management interface. It highlights the performance tuning options for applications like Cassandra, emphasizing low latency and optimizations for cloud infrastructure. Additionally, it mentions the capabilities of OSv for container-based deployments and its compatibility with multiple cloud services.
![[ 0.000] Status() {return PreBeta;}
[ 0.103] HR.count() { return pp(18);}
[ 0.217] countries.size() {return 9;}
[ 0.423] getOpenSourceExperience() {
ret list.add(KVM).add(Xen).add(containers);}
[ 0.735] Mission(){ret “write code that doesn’t suck”;}](https://image.slidesharecdn.com/dorlaorcloudious-140929183815-phpapp01/85/Cassandra-Summit-2014-Down-with-Tweaking-Removing-Tunable-Complexity-for-Cassandra-Performance-and-Administrator-4-320.jpg)
Cassandra Summit 2014: Down with Tweaking! Removing Tunable Complexity for Cassandra Performance and Administrator
- 1. Cassandra on OSv Dor Laor, Don Marti and Glauber Costa Cloudius Systems
- 2. Become the best OS powering virtual machines in the cloud Your App OSv Hypervisor Hardware Your App OSv + JVM Hypervisor Hardware OSv + JVM Hypervisor Hardware OSv Hypervisor Hardware Your App OSv + JVM Hypervisor Hardware
- 4. [ 0.000] Status() {return PreBeta;} [ 0.103] HR.count() { return pp(18);} [ 0.217] countries.size() {return 9;} [ 0.423] getOpenSourceExperience() { ret list.add(KVM).add(Xen).add(containers);} [ 0.735] Mission(){ret “write code that doesn’t suck”;}
- 5. Cassandra boot time on OSv
- 6. What is OSv? Traditional Stack Thin OS Java App App Server Hypervisor Hardware JVM guest OS C++ App guest OS App Server OSv + JVM Hypervisor Hardware Your App Your App OSv
- 9. Pimp my Memcached Requests/s (higher is better)
- 11. Cassandra
- 12. Performance: Leave no stone unturned Memory Huge pages, Heap vs Sys I/O Zero copy, full aio, batching Scheduling Lock free, low latency Tuning Out of the box, auto CPU Low cost ctx, Direct signals...
- 13. New TCP/IP Stack Common kernel network stack Net Channel design:
- 14. Value Proposition II: Manageability
- 21. Stateless root-fs NO Tuning NO State NO Patching 4 VMs per sys admin ratio
- 22. www.osv.io/Capstan: VM build and deploy ● Docker-like config file ● Takes about 3 seconds to build ● Runs on any OS (written in Go) cat Capstanfile base: cloudius/osv-openjdk cmdline: > /java.so -XX:+UseThreadPriorities -XX:+UseParNewGC - XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkEnabled - XX:SurvivorRatio=8 -XX:MaxTenuringThreshold=1 ... org.apache.cassandra.service.CassandraDaemon build: make
- 23. Deploying OSv at scale OSV Cloud Init: - Stateless - Watch ma, no puppet/chef - Single (external) file to rule them all files: /etc/config: | my config goes here httpserver: ssl: yes port: 443 topology: - dc_name: DC1 racks: - rack_name: c1 nodes: - broadcast_address: 1.2.3.4 dc_local_address: 5.6.7.8
- 24. Some more OSv Goodies rest-api Jolokia JVM PaaS approach for runtimes ZFS snapshots Ruby, Node, Scala, more Cloud Init NewRelic integ JVM Ballooning
- 25. ~20MB image size Ideal for multi tenants 70% better tcp latency Stateless, streamable config Runs on virtualBox, kvm, vmw, xen, ec2, gce Public image repository
- 26. Thank you! Try it! http://osv.io/ Run on public cloud Follow @CloudiusSystems