Post on 10-May-2015
description
Copyright © 2013 NuoDB
Keeping Pace with a Distributed Database
!Seth Proctor
CTO
Copyright © 2013 NuoDB !2
Copyright © 2013 NuoDB
NuoDB is a Distributed Database
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Simple; Composable
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Peers play one of two roles
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Host 1
Transaction Engine
Host 2
Storage Manager
SQL Clients
Durable Store (KV)
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Scaled independently
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Host 1
Transaction Engine
Host 2
Storage Manager
Host 3
Transaction Engine
Host 4
Transaction Engine
Host 5
Storage Manager
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On-demand
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Adjust transactional throughput‣ Add, move or remove TEs to ‣ Adjust for demand
‣ Migrate or upgrade active databases
‣ Re-adjust resources
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Add durability points
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TE (Running)
TE (Running)
SM (Running)
SM (Syncing)
Archive Archive
TE (Running)
TE (Running)
SM (Running)
SM (Running)
Archive Archive
Active Database: add SM
Active Database: redundant archives
TE (Running)
TE (Running)
SM (Running)
Archive
Active Database: one SM running
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React to failure
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TE (Running)
TE (Joining)
SM (Running)
Archive
Active Database: add TE
TE (Running) TE (Fails)
SM (Running)
Archive
Active Database: one TE fails
TE (Running)
TE (Running)
SM (Running)
Archive
Active Database: two TEs
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Multi-tenant; Managed
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Installation == Provisioning
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‣ Every host has a management agent ‣ Makes the host available
‣ Keeps track of local activity
‣ Some are “Connection Brokers” ‣ Load-balancer for SQL clients
‣ Single management point
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Independent databases
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Host 1 Host 2 Host 3 Host 6
EBS
Host 5
TE SM SM
TE
TE TE
SM
SM
S3
EBS
EBS
Host 4
TE
SM
HDFS
TE
Logically addressable Database
Complete, independent archive
Provisioned host
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http://dev.nuodb.com/techblog/tags/moonshot
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And now, a few quick demos..
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Templates
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One host
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{ "name" : "Single Host", "summary" : "...", "requirements" : [{ "processes" : [{ "type" : "SM", "host" : "${HOST}" },{ "type" : "TE", "host" : "${HOST}" }] }] }
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Many hosts, one region
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{ "name" : "Multi Host", "summary" : "...", "requirements" : [{ "region" : "${REGION}", "processes" : [{ "type" : "SM", "min" : 1, "max" : 2 },{ "type" : "TE", "min" : 1, }] }] }
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GET /api/1/templates
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GET /api/1/databases
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Statistics
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Java Stored Procedures
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Flexible Schema
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Copyright © 2013 NuoDB
Want to learn more?‣ http://dev.nuodb.com ‣ Techblog, documentation & forums
‣ http://githib.com/nuodb ‣ Community projects & APIs
‣ info@nuodb.com
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Copyright © 2013 NuoDB
Thank You.