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How to Optimize Inter-DC communication
Solution Architect, ScyllaDB
Eyal Gutkind
PRESENTATION TITLE ON ONE LINE AND ON TWO LINES
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Eyal Gutkind
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Head of Solution Architects team at ScyllaDB. Previously, held Product Management roles at Mirantis and DataStax. Prior to DataStax I spent 12 years with Mellanox Technologies in various engineering management and Product Marketing roles. I have a BSc. degree in Electrical and Computer Engineering from Ben Gurion University and an MBA from Fuqua School of Business at Duke University
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What’s Inter-Datacenter Communication?
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USA Data Center Asia Data Center
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What Do You Pay for?
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PRESENTATION TITLE ON ONE LINE AND ON TWO LINES
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What Do You Pay for?
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PRESENTATION TITLE ON ONE LINE AND ON TWO LINES
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Snitch, Keyspace and Client Drivers Settings
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- Simple vs NetworkTopology Strategies
EC2MultiRegionSnitch - for AWS based deployments,
GossipingPropertyFileSnitch - for all other deployments
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Snitch, Keyspace and Client Drivers Settings
- Simple vs NetworkTopology StrategiesCREATE KEYSPACE myks WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '7'}
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USA Data Center Asia Data Center
PRESENTATION TITLE ON ONE LINE AND ON TWO LINES
First and last namePosition, company
Snitch, Keyspace and Client Drivers Settings
- Simple vs NetworkTopology StrategiesCREATE KEYSPACE myks WITH replication = {'class': 'NetworkToplogyStrategy', 'usa’: '3', ‘asia’: ‘3’}
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USA Data Center Asia Data Center
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Snitch, Keyspace and Client Drivers Settings
- Simple vs NetworkTopology Strategies
- Be Local! - Set Load balancing correctly in your clients
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load_balancing_policy= TokenAwarePolicy(DCAwareRoundRobinPolicy(local_dc='asia'))
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Snitch, Keyspace and Client Drivers Settings
- Simple vs NetworkTopology Strategies
- Be Local! - Set Load balancing correctly in your clients- Set Consistency levels in your queries!
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insert_query = SimpleStatement( "INSERT INTO myks.mytable (user_id, name, address, zip_code) VALUES (%s, %s, %s, %s)", consistency_level=ConsistencyLevel.LOCAL_QUORUM)…)
PRESENTATION TITLE ON ONE LINE AND ON TWO LINES
First and last namePosition, company
Snitch, Keyspace and Client Drivers Settings
- Simple vs NetworkTopology Strategies
- Be Local! - Set Load balancing correctly in your clients- Set Consistency levels in your queries!
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PRESENTATION TITLE ON ONE LINE AND ON TWO LINES
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Inter-Node Compression!
Default : None
Use: DC
In your Scylla.yaml file uncomment and set
internode_compression: dc
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Summary
- As expected, you always pay :)
- Create keyspaces and tables in the regions you need them- Enable conversations between ops and dev for best use cases
- Review client geo locations and data access patterns- Who is writing? (Cheap)- Who is reading? (Expensive)
- Enable compression!
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THANK YOU
@gutkinde
Please stay in touch
Any questions?
