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https://issues.apache.org/jira/browse/FLINK-10900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16688236#comment-16688236
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ASF GitHub Bot commented on FLINK-10900:
----------------------------------------
yanghua commented on a change in pull request #7109: [FLINK-10900][kafka][docs]
Mark universal Kafka connector as beta
URL: https://github.com/apache/flink/pull/7109#discussion_r233892269
##########
File path: docs/dev/connectors/kafka.md
##########
@@ -73,21 +73,33 @@ For most users, the `FlinkKafkaConsumer08` (part of
`flink-connector-kafka`) is
<td>This connector supports <a
href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-32+-+Add+timestamps+to+Kafka+message";>Kafka
messages with timestamps</a> both for producing and consuming.</td>
</tr>
<tr>
- <td>flink-connector-kafka-0.11_2.11</td>
+ <td>flink-connector-kafka-0.11{{ site.scala_version_suffix }}</td>
<td>1.4.0</td>
<td>FlinkKafkaConsumer011<br>
FlinkKafkaProducer011</td>
<td>0.11.x</td>
<td>Since 0.11.x Kafka does not support scala 2.10. This connector
supports <a
href="https://cwiki.apache.org/confluence/display/KAFKA/KIP-98+-+Exactly+Once+Delivery+and+Transactional+Messaging";>Kafka
transactional messaging</a> to provide exactly once semantic for the
producer.</td>
</tr>
<tr>
- <td>flink-connector-kafka_2.11</td>
+ <td>flink-connector-kafka{{ site.scala_version_suffix }}</td>
<td>1.7.0</td>
<td>FlinkKafkaConsumer<br>
FlinkKafkaProducer</td>
<td>>= 1.0.0</td>
- <td>This Kafka connector attempts to track the latest version of the
Kafka client. The version of the client it uses may change between Flink
releases. Modern Kafka clients are backwards compatible with broker versions
0.10.0 or later. However for Kafka 0.11.x and 0.10.x versions, we recommend
using dedicated flink-connector-kafka-0.11 and link-connector-kafka-0.10
respectively.</td>
- </tr>
+ <td>
+ This universal Kafka connector attempts to track the latest version of
the Kafka client.
+ The version of the client it uses may change between Flink releases.
+ Modern Kafka clients are backwards compatible with broker versions
0.10.0 or later.
+ However for Kafka 0.11.x and 0.10.x versions, we recommend using
dedicated
+ flink-connector-kafka-0.11 and link-connector-kafka-0.10 respectively.
+ <div class="alert alert-warning">
+ <strong>Attention:</strong> as of Flink 1.7 the universal Kafka
connector is considered to be
+ in a <strong>BETA</strong> status and might not be as stable as the
0.11 connector.
+ In case of problems with the universal connector, you can try to use
flink-connector-kafka-0.11{{ site.scala_version_suffix }}
+ which should be compatible with all of the Kafka versions starting
from 0.11.
Review comment:
Here, maybe not. Do you remember the producer transaction uses reflect to
access the inner private field ([sequenceNumbers 0.11 -> nextSequence
1.0+](https://github.com/apache/kafka/commit/5d2422258cb975a137a42a4e08f03573c49a387e#diff-f4ef1afd8792cd2a2e9069cd7ddea630))
?
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> Mark Kafka 2.0 connector as beta feature
> ----------------------------------------
>
> Key: FLINK-10900
> URL: https://issues.apache.org/jira/browse/FLINK-10900
> Project: Flink
> Issue Type: Task
> Components: Kafka Connector
> Affects Versions: 1.7.0
> Reporter: Till Rohrmann
> Priority: Blocker
> Labels: pull-request-available
>
> Given the test problems with the Kafka 2.0 connector we should mark this
> connector as a beta feature until we have fully understood why so many tests
> deadlock.
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