Real-time data analytics with Cassandra at iland

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This presentation, from the 2014 Datastax Cassandra Tech Day in Houston, TX, is a quick overview on how iland Internet Solutions leverages Cassandra as its sole data storage platform for performance metrics as well as configuration across multiple-data centers in the US, EU and Asia. iland exposes these metrics to its customers trough its ECS portal application which is covering a wealth of functionality including offering visibility into resource consumption, billing, performance, alerts, the impact of change and other key areas. The platform also provides predictive analytics that help companies monitor performance, achieve consistency and anticipate growth requirements.

Daten & Analysen

Real-time data analytics with C* at iland
Cassandra Tech Day @ Houston, TX!
October 14th, 2014!
Julien Anguenot (@anguenot) !

Agenda
• iland, iland platform and why C*?!
• real-time data & domain constraints!
• quick overview of iland C* deployment

Julien Anguenot @ Cassandra Tech Day Houston 2014
iland Internet Solutions
19 8
8 3
Years delivering
Years of delivering IT
Services
Years cloud
infrastructure & disaster
recovery expertise
IISO 27001 &
SSAE16 global
data centers
Cloud-based
Specializations:
Production;
Test & Dev; DR
4

Julien Anguenot @ Cassandra Tech Day Houston 2014
iland platform essentially
• data warehouse running across multiple data-centers!
• monitoring (resource consumption / performance)!
• billing!
• alerting!
• predictive analytics!
• cloud management!
• cloud services (backups, DR, etc.)!
• desktop and mobile applications (iland portal app)
5

Julien Anguenot @ Cassandra Tech Day Houston 2014 6

Julien Anguenot @ Cassandra Tech Day Houston 2014 7

Julien Anguenot @ Cassandra Tech Day Houston 2014 8

Julien Anguenot @ Cassandra Tech Day Houston 2014 9

Julien Anguenot @ Cassandra Tech Day Houston 2014 10

Why did we choose Cassandra?
• MySQL and MongoDB attempts been big fails!
• write latency (constant-time writes)!
• distributed nature (multi-data centers)!
• scalability, reliability, performance, availability!
• sharding makes things complicated!
• no master - slave means no SPOF!
• simplicity!
Julien Anguenot @ Cassandra Tech Day Houston 2014
11

Julien Anguenot @ Cassandra Tech Day Houston 2014
Constraints
• write latency!
• precision (used for billing)!
• availability!
• multi-data center!
• tens of thousands of VMs !
• agent-less!
• pull (vs push)
13

Julien Anguenot @ Cassandra Tech Day Houston 2014
Pipeline
• collection of real-time data!
• store!
• aggregation!
• rollups!
• processing!
• alerting!
• reporting!
• querying
14

Julien Anguenot @ Cassandra Tech Day Houston 2014
Data sources
• VMware infrastructure stack (each location)!
• vCloud Director, vCenter, vShield Manager!
• network statistics!
• AMQP, Syslog-ng, Web Services!
• Salesforce!
• Veeam, Zerto, more …
15

Julien Anguenot @ Cassandra Tech Day Houston 2014
Real-time metrics!
• 20 seconds samples!
• dozens of performance counters per entity (VM, VNIC, etc.)!
• time series!
• (timestamp, value)!
• metadata!
• entity (network, vm, etc.)!
• unit, etc.!
• then 1min, 1h, 1d, 1w and 1m historical rollups
16

Julien Anguenot @ Cassandra Tech Day Houston 2014
C* iland’s cluster (1/2)
• one (1) C* cluster !
• 6 data centers - 25+ nodes - one (1) keyspace
18

Julien Anguenot @ Cassandra Tech Day Houston 2014
C* iland’s cluster (2/2)
• each DC (1 or 2 racks of 3 nodes)!
• 3 nodes per location for writes!
• replication Factor (RF) = 3 !
• 3 nodes per location for API reads (Dallas, TX, London, UK, Singapore)!
• each node!
• VM (vCenter powered) - Ubuntu 14.04 LTS w/ Cassandra base dpkg!
• 16GB of RAM / 16 vCPUs!
• currently: ~ 1TB of data per node!
• not using SSD (yet)
19

Asia
Data centers and replication (1/2)
Julien Anguenot @ Cassandra Tech Day Houston 2014 20
US
LA,CA Reston, VA
Dallas, TX
Singapore
EU
London,UK
Manchester,UK

Data centers and replication (2/2)
iland core platform iland core platform
Julien Anguenot @ Cassandra Tech Day Houston 2014
21
iland ReST API
C* W
iland ReST API
C* R C* W C* R
C* R only deployed in: Dallas, TX - London, UK - Singapore

US API EU API Asia API
EU portal Asia portal
Citrix Netscaler (US)
Julien Anguenot @ Cassandra Tech Day Houston 2014
Access to data (read / write)
22
US portal
https://my.ilandcloud.com/

Julien Anguenot @ Cassandra Tech Day Houston 2014
At the application level?
• History!
• POC: C* 1.2 + Astyanax (2013/02)!
• V1: C* 2.0 + Astyanax w/ CQL3 over thrift (2013/06) !
• Current version: C* 2.0 + DataStax CQL Java driver!
• Java / JEE cluster (Wildfly AS)!
• AMQP / RabbitMQ!
• Redis to cache up “hot” data (read latency)!
• Python & DataStax CQL driver for cluster / data upgrades
23

Slides !
@ !
http://www.slideshare.net/anguenot/cassandra-tech-dayhou2014
http://www.iland.com/enterprise-cloud-services-
portal/!
@ilandcloud!
@anguenot

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