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https://issues.apache.org/jira/browse/FLINK-3332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15148324#comment-15148324
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ASF GitHub Bot commented on FLINK-3332:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/1640#discussion_r52986051
--- Diff: docs/apis/streaming/connectors/cassandra.md ---
@@ -0,0 +1,100 @@
+---
+title: "Apache Cassandra Connector"
+
+# Sub-level navigation
+sub-nav-group: streaming
+sub-nav-parent: connectors
+sub-nav-pos: 1
+sub-nav-title: Cassandra
+---
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements. See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership. The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied. See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+This connector provides a sink that writes data into a
[Cassandra](https://cassandra.apache.org/) database.
+
+The Flink Cassandra sink integrates with Flink's checkpointing mechanism
to provide
+exactly-once processing semantics. To achieve that, Flink buffers incoming
records
--- End diff --
i am aware that there are several places where exactly-once is mentioned.
once we have a consensus on this issue i will go through the PR and change all
references.
> Provide an exactly-once Cassandra connector
> -------------------------------------------
>
> Key: FLINK-3332
> URL: https://issues.apache.org/jira/browse/FLINK-3332
> Project: Flink
> Issue Type: Improvement
> Components: Streaming Connectors
> Reporter: Robert Metzger
> Assignee: Chesnay Schepler
>
> With FLINK-3311, we are adding a Cassandra connector to Flink.
> It would be good to also provide an "exactly-once" C* connector.
> I would like to first discuss how we are going to implement this in Flink.
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