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https://issues.apache.org/jira/browse/FLINK-3311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15169130#comment-15169130
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ASF GitHub Bot commented on FLINK-3311:
---------------------------------------
Github user zentol commented on the pull request:
https://github.com/apache/flink/pull/1660#issuecomment-189310673
Overall this PR looks good now. I'll go through the documentation more in
detail when i unify the docs for this PR and #1640 when merging.
Furthermore, I'd like to make a slight change as to how the sink is
created. Although there will be 2 separate sinks providing different guarantees
in terms of data consistency, it would be nice if the sink creation would go
through the same mechanism.
@rmetzger drafted the following when i had a chat with him:
```
CassandraSink sink = CassandraSink.addSink(input)
.setHostname(..) //passing the hostname separately is intended for
simple programs
.setQuery(...)
.setConsistencyLevel(...) //decides which sink is used
.setClusterBuilder(new ClusterBuilder() { //optional, for maximum
configurability
@Override
public Cluster createCluster(Cluster.Builder builder){
builder.addContactPoint(host).build();
}
.otherStuff()
.build();
```
CassandraSink would be a wrapper class, exposing common methods a user
would expect from a sink.
If you have no objections i would inject these changes while merging as
well.
> Add a connector for streaming data into Cassandra
> -------------------------------------------------
>
> Key: FLINK-3311
> URL: https://issues.apache.org/jira/browse/FLINK-3311
> Project: Flink
> Issue Type: New Feature
> Components: Streaming Connectors
> Reporter: Robert Metzger
> Assignee: Andrea Sella
>
> We had users in the past asking for a Flink+Cassandra integration.
> It seems that there is a well-developed java client for connecting into
> Cassandra: https://github.com/datastax/java-driver (ASL 2.0)
> There are also tutorials out there on how to start a local cassandra instance
> (for the tests):
> http://prettyprint.me/prettyprint.me/2010/02/14/running-cassandra-as-an-embedded-service/index.html
> For the data types, I think we should support TupleX types, and map standard
> java types to the respective cassandra types.
> In addition, it seems that there is a object mapper from datastax to store
> POJOs in Cassandra (there are annotations for defining the primary key and
> types)
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