Presto Cassandra Connector : number of connections
I am looking into increasing the number of connections Presto makes to ScyllaDB. I am using Presto's Cassandra connector to connect to ScyllaDB. I don't see any property in the documentation that can be used to increase the number of connections. https://prestodb.io/docs/current/connector/cassandra.html
This is my scylladb.properties file
connector.name=cassandra
cassandra.contact-points=scylla1,scylla2,scylla3,scylla4
cassandra.client.read-timeout=3600000ms
cassandra.split-size=1024
cassandra.fetch-size=5000
cassandra.load-policy.token-aware.shuffle-replicas=true
cassandra.load-policy.use-token-aware=true
What is the default number of connections that Presto makes to cassandra/scylladb and how can I set this property? Thanks
prestodb scylla
edited Nov 20 '18 at 23:23
phact
6,6171224
asked Nov 19 '18 at 21:10
jaspreet kaur bassanjaspreet kaur bassan
5117
add a comment |
I am looking into increasing the number of connections Presto makes to ScyllaDB. I am using Presto's Cassandra connector to connect to ScyllaDB. I don't see any property in the documentation that can be used to increase the number of connections. https://prestodb.io/docs/current/connector/cassandra.html
This is my scylladb.properties file
connector.name=cassandra
cassandra.contact-points=scylla1,scylla2,scylla3,scylla4
cassandra.client.read-timeout=3600000ms
cassandra.split-size=1024
cassandra.fetch-size=5000
cassandra.load-policy.token-aware.shuffle-replicas=true
cassandra.load-policy.use-token-aware=true
What is the default number of connections that Presto makes to cassandra/scylladb and how can I set this property? Thanks
prestodb scylla
edited Nov 20 '18 at 23:23
phact
6,6171224
asked Nov 19 '18 at 21:10
jaspreet kaur bassanjaspreet kaur bassan
5117
add a comment |
I am looking into increasing the number of connections Presto makes to ScyllaDB. I am using Presto's Cassandra connector to connect to ScyllaDB. I don't see any property in the documentation that can be used to increase the number of connections. https://prestodb.io/docs/current/connector/cassandra.html
This is my scylladb.properties file
connector.name=cassandra
cassandra.contact-points=scylla1,scylla2,scylla3,scylla4
cassandra.client.read-timeout=3600000ms
cassandra.split-size=1024
cassandra.fetch-size=5000
cassandra.load-policy.token-aware.shuffle-replicas=true
cassandra.load-policy.use-token-aware=true
What is the default number of connections that Presto makes to cassandra/scylladb and how can I set this property? Thanks
prestodb scylla
edited Nov 20 '18 at 23:23
phact
6,6171224
asked Nov 19 '18 at 21:10
jaspreet kaur bassanjaspreet kaur bassan
5117
I am looking into increasing the number of connections Presto makes to ScyllaDB. I am using Presto's Cassandra connector to connect to ScyllaDB. I don't see any property in the documentation that can be used to increase the number of connections. https://prestodb.io/docs/current/connector/cassandra.html
This is my scylladb.properties file
connector.name=cassandra
cassandra.contact-points=scylla1,scylla2,scylla3,scylla4
cassandra.client.read-timeout=3600000ms
cassandra.split-size=1024
cassandra.fetch-size=5000
cassandra.load-policy.token-aware.shuffle-replicas=true
cassandra.load-policy.use-token-aware=true
What is the default number of connections that Presto makes to cassandra/scylladb and how can I set this property? Thanks
prestodb scylla
prestodb scylla
edited Nov 20 '18 at 23:23
phact
6,6171224
asked Nov 19 '18 at 21:10
jaspreet kaur bassanjaspreet kaur bassan
5117
edited Nov 20 '18 at 23:23
phact
6,6171224
asked Nov 19 '18 at 21:10
jaspreet kaur bassanjaspreet kaur bassan
5117
edited Nov 20 '18 at 23:23
phact
6,6171224
edited Nov 20 '18 at 23:23
phact
6,6171224
edited Nov 20 '18 at 23:23
phact
6,6171224
6,6171224
asked Nov 19 '18 at 21:10
jaspreet kaur bassanjaspreet kaur bassan
5117
asked Nov 19 '18 at 21:10
jaspreet kaur bassanjaspreet kaur bassan
5117
asked Nov 19 '18 at 21:10
jaspreet kaur bassanjaspreet kaur bassan
5117
5117
add a comment |
add a comment |
1 Answer
1
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oldest
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Using the same logic as we do for Spark, reducing the cassandra.split-size to a lower number should make you benefit from the following:
- Coordination and data fetching is distributed among several coordinators
- Higher concurrency of requests, which translates to a higher number of connections between the Presto node/s and Scylla nodes
See how cassandra.split-size=1 behaves and if needed raise to 10, 50, 100
answered Dec 2 '18 at 8:33
TomerSanTomerSan
72519
@jaspreet kaur bassan - have you tried this?
– TomerSan
Dec 3 '18 at 8:51
I never tried this on Presto. Have always used it for Spark applications. I'll try it out. Thanks
– jaspreet kaur bassan
Dec 9 '18 at 6:29
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Using the same logic as we do for Spark, reducing the cassandra.split-size to a lower number should make you benefit from the following:
- Coordination and data fetching is distributed among several coordinators
- Higher concurrency of requests, which translates to a higher number of connections between the Presto node/s and Scylla nodes
See how cassandra.split-size=1 behaves and if needed raise to 10, 50, 100
answered Dec 2 '18 at 8:33
TomerSanTomerSan
72519
@jaspreet kaur bassan - have you tried this?
– TomerSan
Dec 3 '18 at 8:51
I never tried this on Presto. Have always used it for Spark applications. I'll try it out. Thanks
– jaspreet kaur bassan
Dec 9 '18 at 6:29
add a comment |
Using the same logic as we do for Spark, reducing the cassandra.split-size to a lower number should make you benefit from the following:
- Coordination and data fetching is distributed among several coordinators
- Higher concurrency of requests, which translates to a higher number of connections between the Presto node/s and Scylla nodes
See how cassandra.split-size=1 behaves and if needed raise to 10, 50, 100
answered Dec 2 '18 at 8:33
TomerSanTomerSan
72519
@jaspreet kaur bassan - have you tried this?
– TomerSan
Dec 3 '18 at 8:51
I never tried this on Presto. Have always used it for Spark applications. I'll try it out. Thanks
– jaspreet kaur bassan
Dec 9 '18 at 6:29
add a comment |
Using the same logic as we do for Spark, reducing the cassandra.split-size to a lower number should make you benefit from the following:
- Coordination and data fetching is distributed among several coordinators
- Higher concurrency of requests, which translates to a higher number of connections between the Presto node/s and Scylla nodes
See how cassandra.split-size=1 behaves and if needed raise to 10, 50, 100
answered Dec 2 '18 at 8:33
TomerSanTomerSan
72519
Using the same logic as we do for Spark, reducing the cassandra.split-size to a lower number should make you benefit from the following:
- Coordination and data fetching is distributed among several coordinators
- Higher concurrency of requests, which translates to a higher number of connections between the Presto node/s and Scylla nodes
See how cassandra.split-size=1 behaves and if needed raise to 10, 50, 100
answered Dec 2 '18 at 8:33
TomerSanTomerSan
72519
edited Dec 2 '18 at 10:27
answered Dec 2 '18 at 8:33
TomerSanTomerSan
72519
answered Dec 2 '18 at 8:33
TomerSanTomerSan
72519
answered Dec 2 '18 at 8:33
TomerSanTomerSan
72519
72519
@jaspreet kaur bassan - have you tried this?
– TomerSan
Dec 3 '18 at 8:51
I never tried this on Presto. Have always used it for Spark applications. I'll try it out. Thanks
– jaspreet kaur bassan
Dec 9 '18 at 6:29
add a comment |
@jaspreet kaur bassan - have you tried this?
– TomerSan
Dec 3 '18 at 8:51
I never tried this on Presto. Have always used it for Spark applications. I'll try it out. Thanks
– jaspreet kaur bassan
Dec 9 '18 at 6:29
@jaspreet kaur bassan - have you tried this?
– TomerSan
Dec 3 '18 at 8:51
@jaspreet kaur bassan - have you tried this?
– TomerSan
Dec 3 '18 at 8:51
I never tried this on Presto. Have always used it for Spark applications. I'll try it out. Thanks
– jaspreet kaur bassan
Dec 9 '18 at 6:29
I never tried this on Presto. Have always used it for Spark applications. I'll try it out. Thanks
– jaspreet kaur bassan
Dec 9 '18 at 6:29
add a comment |
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