Scaling ArangoDB on Mesosphere DCOS

transcript

Scaling ArangoDB onMesosphere DCOS

Max Neunhöffer

Hamburg, 1 October 2015

www.arangodb.com

Featuresis a multi-model database (document store & graph database),

offers convenient queries (via HTTP/REST and AQL),including joins between different collections,configurable consistency guarantees using transactionsAPI extensible by JS code in the Foxx Microservice Framework.

Featuresis a multi-model database (document store & graph database),offers convenient queries (via HTTP/REST and AQL),

including joins between different collections,configurable consistency guarantees using transactionsAPI extensible by JS code in the Foxx Microservice Framework.

Featuresis a multi-model database (document store & graph database),offers convenient queries (via HTTP/REST and AQL),including joins between different collections,

configurable consistency guarantees using transactionsAPI extensible by JS code in the Foxx Microservice Framework.

Featuresis a multi-model database (document store & graph database),offers convenient queries (via HTTP/REST and AQL),including joins between different collections,configurable consistency guarantees using transactions

API extensible by JS code in the Foxx Microservice Framework.

Featuresis a multi-model database (document store & graph database),offers convenient queries (via HTTP/REST and AQL),including joins between different collections,configurable consistency guarantees using transactionsAPI extensible by JS code in the Foxx Microservice Framework.

Replication and Sharding— horizontal scalabilityArangoDB provides

easy setup of (asynchronous) replication,sharding with automatic data distributionMongoDB-style replication in the cluster,full integration with Apache Mesos and Mesosphere.

Work in progress:synchronous replication in cluster mode,fault tolerance by automatic failover andzero administration by a self-reparing and self-balancing cluster architecture,all based on the Apache Mesos infrastructure.

Work in progress:synchronous replication in cluster mode,

fault tolerance by automatic failover andzero administration by a self-reparing and self-balancing cluster architecture,all based on the Apache Mesos infrastructure.

Work in progress:synchronous replication in cluster mode,fault tolerance by automatic failover and

zero administration by a self-reparing and self-balancing cluster architecture,all based on the Apache Mesos infrastructure.

Work in progress:synchronous replication in cluster mode,fault tolerance by automatic failover andzero administration by a self-reparing and self-balancing cluster architecture,

all based on the Apache Mesos infrastructure.

Work in progress:synchronous replication in cluster mode,fault tolerance by automatic failover andzero administration by a self-reparing and self-balancing cluster architecture,all based on the Apache Mesos infrastructure.

Task Task

TaskTask

Task Task

TaskTask

Task Task

TaskTask

Task Task

TaskTask

Mesos Agent Mesos Agent

Mesos Agent

Mesos Master Mesos Master Mesos Master(leader)

(leader)Zookeeper Zookeeper Zookeeper

Task Task

TaskTask

Task Task

TaskTask

Task Task

TaskTask

Task Task

TaskTask

Mesos Agent

Mesos Master

Zookeeper

Mesos Master(leader)

(leader)Zookeeper

Mesos Master

Zookeeper

Task Task

TaskTask

Task Task

TaskTask

Task Task

TaskTask

Task Task

TaskTask

Task Task

Mesos Agent

Mesos Master Mesos Master Mesos Master(leader)

(leader)Zookeeper Zookeeper Zookeeper

Mesos Agent

dcos CLI Marathonschedules frameworks

starts (this is a lie)

Mesos Agent Mesos Master

Zookeeper

registers

stores stateFramework

1. reports free resources

4. tells to execute

3. accepts orresource offers

2. makesdeclines them

starts (this is a big lie)

executes

(this is a small lie)

Zookeeper

Framework

1. reports free resources

4. tells to execute

3. accepts orresource offers

2. makesdeclines them

executes

(this is a small lie)

actually, Marathon is a framework

starts (this is a big lie)

actually, it uses an "executor"

Zookeeper

Framework

starts

Zookeeper

Framework

notices

reports

restarts

Zookeeper

Framework

restarts

Zookeeper

Framework

gets state

and reconciles

reconnects

Persistent primitivesoffer received 20151001-105738-2905319616-5050-2640-O0 with

cpus(*):4; mem(*):10895; disk(*):119761; ports(*):[31000-32000]}

trying to reserve 20151001-105738-2905319616-5050-2640-O0 withcpus(arangodb, pri):0.2; mem(arangodb, pri):512; disk(arangodb, pri):512}

offer received 20151001-105738-2905319616-5050-2640-O1 withcpus(*):3.8; mem(*):10383; disk(*):119249; ports(*):[31000-32000];cpus(arangodb, pri):0.2; mem(arangodb, pri):512; disk(arangodb, pri):512}

trying to make 20151001-105738-2905319616-5050-2640-O1 persistent fordisk(arangodb, pri)[AGENCY_c2bb93ce-46d3-4802-bed5-cf254c6f16df:dataxyz]:512

offer received 20151001-105738-2905319616-5050-2640-O2 withcpus(*):3.8; mem(*):10383; disk(*):119249; ports(*):[31000-32000];cpus(arangodb, pri):0.2; mem(arangodb, pri):512;disk(arangodb, pri)[AGENCY_c2bb93ce-46d3-4802-bed5-cf254c6f16df:dataxyz]:512

Deployment

Docker and github

One container image arangodb/arangodb-mesos used to runthe ArangoDB framework (C++ executable)all ArangoDB instances in the clusterthe Agency (etcd)

The dcos CLI by Mesosphere is a Python program (virtualenv, pip).ArangoDB subcommand: a Python program, talks JSON/REST with theframework, plugs into dcos, deployed from a github repository.github repository mesosphere/universe has all certified frameworks

Deployment

Docker and githubOne container image arangodb/arangodb-mesos used to run

the ArangoDB framework (C++ executable)all ArangoDB instances in the clusterthe Agency (etcd)

The dcos CLI by Mesosphere is a Python program (virtualenv, pip).ArangoDB subcommand: a Python program, talks JSON/REST with theframework, plugs into dcos, deployed from a github repository.github repository mesosphere/universe has all certified frameworks

Deployment

the ArangoDB framework (C++ executable)all ArangoDB instances in the clusterthe Agency (etcd)The dcos CLI by Mesosphere is a Python program (virtualenv, pip).

ArangoDB subcommand: a Python program, talks JSON/REST with theframework, plugs into dcos, deployed from a github repository.github repository mesosphere/universe has all certified frameworks

Deployment

the ArangoDB framework (C++ executable)all ArangoDB instances in the clusterthe Agency (etcd)The dcos CLI by Mesosphere is a Python program (virtualenv, pip).ArangoDB subcommand: a Python program, talks JSON/REST with theframework, plugs into dcos, deployed from a github repository.

github repository mesosphere/universe has all certified frameworks

Deployment

the ArangoDB framework (C++ executable)all ArangoDB instances in the clusterthe Agency (etcd)The dcos CLI by Mesosphere is a Python program (virtualenv, pip).ArangoDB subcommand: a Python program, talks JSON/REST with theframework, plugs into dcos, deployed from a github repository.github repository mesosphere/universe has all certified frameworks

Scaling ArangoDBUltimate aim with a distributed database: horizontal scalability.

Devise a test, . . .to show linear scalinguse N = 8,16,24,32,40,48,56,64,72,80 nodes with 8 vCPUs each.run N/2 DBServers, N/2 asynchronous replicas and N/2 Coordinators.use single document reads, writes and 50%/50%,from N/2 load servers in the same Mesosphere clusterup to 640 vCPUs, want to write as many k docs/(s * vCPU) as possible.

Devise a test, . . .to show linear scalinguse N = 8,16,24,32,40,48,56,64,72,80 nodes with 8 vCPUs each.run N/2 DBServers, N/2 asynchronous replicas and N/2 Coordinators.

use single document reads, writes and 50%/50%,from N/2 load servers in the same Mesosphere clusterup to 640 vCPUs, want to write as many k docs/(s * vCPU) as possible.

Devise a test, . . .to show linear scalinguse N = 8,16,24,32,40,48,56,64,72,80 nodes with 8 vCPUs each.run N/2 DBServers, N/2 asynchronous replicas and N/2 Coordinators.use single document reads, writes and 50%/50%,from N/2 load servers in the same Mesosphere cluster

up to 640 vCPUs, want to write as many k docs/(s * vCPU) as possible.

Devise a test, . . .to show linear scalinguse N = 8,16,24,32,40,48,56,64,72,80 nodes with 8 vCPUs each.run N/2 DBServers, N/2 asynchronous replicas and N/2 Coordinators.use single document reads, writes and 50%/50%,from N/2 load servers in the same Mesosphere clusterup to 640 vCPUs, want to write as many k docs/(s * vCPU) as possible.

Deployment of load servers

Docker and ArangoDBUse a central ArangoDB instance to

collect results,evaluate them,and synchronise load servers.Each load server runs the Waiter in a Docker container.

The Waiter waits, most of the time,observes a collection and notices new "work"documents,fires up load processes,reports termination as a "done"document.A single JavaScript program directs the whole experiment.We deploy theWaiter using Marathon.

Deployment of load serversDocker and ArangoDB

Use a central ArangoDB instance tocollect results,evaluate them,and synchronise load servers.

Each load server runs the Waiter in a Docker container.The Waiter waits, most of the time,observes a collection and notices new "work"documents,fires up load processes,reports termination as a "done"document.

A single JavaScript program directs the whole experiment.We deploy theWaiter using Marathon.

Each load server runs the Waiter in a Docker container.

The Waiter waits, most of the time,observes a collection and notices new "work"documents,fires up load processes,reports termination as a "done"document.A single JavaScript program directs the whole experiment.We deploy theWaiter using Marathon.

Each load server runs the Waiter in a Docker container.The Waiter

waits, most of the time,observes a collection and notices new "work"documents,fires up load processes,reports termination as a "done"document.A single JavaScript program directs the whole experiment.We deploy theWaiter using Marathon.

Each load server runs the Waiter in a Docker container.The Waiter waits,

most of the time,observes a collection and notices new "work"documents,fires up load processes,reports termination as a "done"document.A single JavaScript program directs the whole experiment.We deploy theWaiter using Marathon.

A single JavaScript program directs the whole experiment.

We deploy theWaiter using Marathon.

https://www.arangodb.com

https://docs.arangodb.com/cookbook/index.html

https://github.com/ArangoDB/guesser

http://mesos.apache.org/

https://mesosphere.com/

https://mesosphere.github.io/marathon/

Scaling ArangoDB on Mesosphere DCOS

Software