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https://issues.apache.org/jira/browse/FLINK-9697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16649169#comment-16649169
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ASF GitHub Bot commented on FLINK-9697:
---------------------------------------
eliaslevy commented on a change in pull request #6703: [FLINK-9697] Provide
connector for Kafka 2.0.0
URL: https://github.com/apache/flink/pull/6703#discussion_r224964336
##########
File path:
flink-connectors/flink-connector-kafka/src/main/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaConsumer.java
##########
@@ -0,0 +1,321 @@
+/*
+ * 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.
+ */
+
+package org.apache.flink.streaming.connectors.kafka;
+
+import org.apache.flink.annotation.PublicEvolving;
+import org.apache.flink.api.common.serialization.DeserializationSchema;
+import org.apache.flink.metrics.MetricGroup;
+import org.apache.flink.streaming.api.functions.AssignerWithPeriodicWatermarks;
+import
org.apache.flink.streaming.api.functions.AssignerWithPunctuatedWatermarks;
+import org.apache.flink.streaming.api.operators.StreamingRuntimeContext;
+import org.apache.flink.streaming.connectors.kafka.config.OffsetCommitMode;
+import org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher;
+import
org.apache.flink.streaming.connectors.kafka.internal.KafkaPartitionDiscoverer;
+import org.apache.flink.streaming.connectors.kafka.internals.AbstractFetcher;
+import
org.apache.flink.streaming.connectors.kafka.internals.AbstractPartitionDiscoverer;
+import
org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicPartition;
+import
org.apache.flink.streaming.connectors.kafka.internals.KafkaTopicsDescriptor;
+import
org.apache.flink.streaming.util.serialization.KeyedDeserializationSchema;
+import
org.apache.flink.streaming.util.serialization.KeyedDeserializationSchemaWrapper;
+import org.apache.flink.util.PropertiesUtil;
+import org.apache.flink.util.SerializedValue;
+
+import org.apache.kafka.clients.consumer.ConsumerConfig;
+import org.apache.kafka.clients.consumer.KafkaConsumer;
+import org.apache.kafka.clients.consumer.OffsetAndTimestamp;
+import org.apache.kafka.common.TopicPartition;
+import org.apache.kafka.common.serialization.ByteArrayDeserializer;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.regex.Pattern;
+
+import static org.apache.flink.util.Preconditions.checkNotNull;
+import static org.apache.flink.util.PropertiesUtil.getBoolean;
+import static org.apache.flink.util.PropertiesUtil.getLong;
+
+/**
+ * The Flink Kafka Consumer is a streaming data source that pulls a parallel
data stream from
+ * Apache Kafka 2.x. The consumer can run in multiple parallel instances, each
of which will pull
+ * data from one or more Kafka partitions.
+ *
+ * <p>The Flink Kafka Consumer participates in checkpointing and guarantees
that no data is lost
+ * during a failure, and that the computation processes elements "exactly
once".
+ * (Note: These guarantees naturally assume that Kafka itself does not loose
any data.)</p>
+ *
+ * <p>Please note that Flink snapshots the offsets internally as part of its
distributed checkpoints. The offsets
+ * committed to Kafka / ZooKeeper are only to bring the outside view of
progress in sync with Flink's view
Review comment:
The modern Kafka client does not commit offsets to ZooKeeper
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> Provide connector for Kafka 2.0.0
> ---------------------------------
>
> Key: FLINK-9697
> URL: https://issues.apache.org/jira/browse/FLINK-9697
> Project: Flink
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: vinoyang
> Priority: Major
> Labels: pull-request-available
>
> Kafka 2.0.0 would be released soon.
> Here is vote thread:
> [http://search-hadoop.com/m/Kafka/uyzND1vxnEd23QLxb?subj=+VOTE+2+0+0+RC1]
> We should provide connector for Kafka 2.0.0 once it is released.
> Upgrade to 2.0 documentation :
> http://kafka.apache.org/20/documentation.html#upgrade_2_0_0
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