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Questions tagged [amazon-keyspaces]

Amazon Keyspaces (for Apache Cassandra) is a managed Apache Cassandra–compatible database service that can migrate, run, and scale Cassandra workloads in the AWS Cloud. Being serverless, it automatically scales tables up and down in response to application traffic. Note: Apache Cassandra is an open-source, wide-column datastore that is designed to handle large amounts of data. For more information, see Apache Cassandra.

This tag is for posts about Amazon Keyspaces, which is AWS's managed Apache Cassandra service.

110 questions
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How can I calculate the RCUs and WCUs from Cassandra for a AWS Keyspace cost estimation?

In order to consider AWS Keyspaces as an alternative to an on-prem Cassandra cluster, I'd like to do a cost estimation. However, the keyspaces pricing is based on write request units (WRUs) and read capacity units…
Mridang Agarwalla
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Consistency level LOCAL_ONE is not supported for this operation. Supported consistency levels are: LOCAL_QUORUM

I am working with AWS keyspaces and trying to insert data from C# but getting this error."Consistency level LOCAL_ONE is not supported for this operation. Supported consistency levels are: LOCAL_QUORUM". can anyone please help out here. AWS…
virendra parade
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How to connect AWS Lambda to Amazon Keyspaces (AWS Cassandra)?

Looking for a sample program to connect to Amazon Keyspaces (AWS Managed Cassandra) using AWS Lambda, however could not find any sample programs for the same.
Amit Kaneria
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gocql.createSession: Consistency level ANY is not supported for this operation

Getting following error while trying to create session from cql, Error: Consistency level ANY is not supported for this operation. Supported consistency levels are: ONE, LOCAL_QUORUM, LOCAL_ONE I've used Amazon Managed Apache Cassandra…
Pinank Lakhani
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Using Janusgraph with AWSKeyspaces. While adding a vertex from the gremlin console I get an error saying `Lock write retry count exceeded`

Gremlin Console: gremlin> :remote connect tinkerpop.server conf/remote.yaml ==>Configured localhost/127.0.0.1:8182 gremlin> :remote console ==>All scripts will now be sent to Gremlin Server - [localhost/127.0.0.1:8182] - type ':remote console' to…
Abhiram
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Amazon Keyspaces "DefaultTokenFactoryRegistry and DefaultTopologyMonitor" causes High CPU and memory usage

We have partially moved some of our tables from AWS RDS to AWS Keyspaces to see if we could get better performance on KeySpaces. We have put a lot of work to migrate from MySQL to Keyspaces and also we have been monitoring the system to avoid…
xywz
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Why do native CQL functions like MIN() and MAX() not work in Amazon Keyspaces?

I'm trying to retrieve the max value of a column in my aws keyspace table using python. I have it as a method in a class query = SimpleStatement('select min (timestamp) from ' + keyspace + '.'+ table_name) #+ ' limit 2' read =…
airdmhund
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spring boot application connection to Amazon Keyspaces

I am trying to connect my spring boot application to aws keyspaces, i have tried every step mentioned in the aws help manual and yet i am failing to connect, any insight on how to each the above said functionality is appreciated. i have listed out…
k.explorer
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Unable to connect Java Spring Boot application to Amazon Keyspaces

I'm trying to connect my java spring boot application to my AWS Keyspaces keyspace. I've followed amazons docs on how to setup and configure this connection using the DataStax Java Driver for Apache Cassandra…
Ethan Davis
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Update a column in a table having huge data (80mn+ rows) in cassandra

I have a table in Cassandra which has almost 80 million+ records(may be more than that). I have updated the schama which adds a new column in the table. Now I need to update the column values. I wrote a migration script to do that using…
programoholic
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Will DynamoDB get Materialized Views?

I am considering choosing between DynamoDB and AWS Keyspaces. My main issue is still with many-to-many relationship in Dynamo. You don't really have too nice options. Either you do adjecency list for immutable data...but in most scenarios data is…
Djordje Nikolic
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Connect to AWS keyspaces with Spring reactive data autoconfiguration

Im trying to connect to my aws keyspaces using spring-boot-starter-data-cassandra-reactive and I get the following error: Error creating bean with name 'cassandraSession' defined in class path resource…
Pavan Kumar
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Run JanusGraph with Amazon Keyspaces Storage Backend

Is it possible to run a JanusGraph Docker Container with an AWS Keyspace as storage backend? I tried to configure the Keyspace using Janus Graphs cassandra-es template. If I run the below docker-compose.yml JanusGraph logs exceptions and all…
user4758246
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Connecting to AWS Managed Cassandra with Perl

I am trying to connect to AWS Managed Cassandra using Perl. It's not working due to a vague error Error 0: Internal Server Error. Using the DBD::Cassandra Library, I can connect to self hosted Cassandra clusters, but not AWS Cassandra. I think I…
Steve E.
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JanusGraph: access Amazon Managed Cassandra from EC2

I'm trying to set up JanusGraph to access Amazon MCS. The infrastructure is all there to allow access, but I'm facing difficulties at the config step. This is the config I'm setting for…
Hai Pham
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