[
https://issues.apache.org/jira/browse/FLINK-3311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15239127#comment-15239127
]
ASF GitHub Bot commented on FLINK-3311:
---------------------------------------
Github user zentol commented on the pull request:
https://github.com/apache/flink/pull/1771#issuecomment-209400438
@rmetzger I hav efixed the issue you encountered. The problem was that the
JM tries to discard all state belonging to pending checkpoints upon job
failure, which effectively purged the write-ahead log. The simple fix is to not
do anything in ExactlyOnceState#discardState.
> 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)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
