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https://issues.apache.org/jira/browse/HADOOP-14623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16079033#comment-16079033
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Hongyuan Li edited comment on HADOOP-14623 at 7/8/17 8:11 AM:
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I highly recommend Two points:
1、should use {{acks}} = {{1}}.
2、update kafka client version to at least {{0.10.1.0}}, which has a
IntegerSerializer class If kafka sink want to generate a kafka producer with
the the type of key being Integer.
The last patch will fix the two, If you don't think so, close the jira. Thanks
for any advice.
3、add {{callback}} when using new {{KafkaProducer}}#{{send}}
was (Author: hongyuan li):
I highly recommend Two points:
1、should use {{acks}} = {{1}}.
2、update kafka client version to {{0.10.1.0}}, which has a IntegerSerializer
class If kafka sink want to generate a kafka producer with the the type of key
being Integer.
The last patch will fix the two, If you don't think so, close the jira. Thanks
for any advice.
> fixed some bugs in KafkaSink
> -----------------------------
>
> Key: HADOOP-14623
> URL: https://issues.apache.org/jira/browse/HADOOP-14623
> Project: Hadoop Common
> Issue Type: Bug
> Components: common, tools
> Affects Versions: 3.0.0-alpha3
> Reporter: Hongyuan Li
> Assignee: Hongyuan Li
> Attachments: HADOOP-14623-001.patch
>
>
> {{KafkaSink}}#{{init}} should set ack to *1* to make sure the message has
> been written to the broker at least.
> current code list below:
> {code}
>
> props.put("request.required.acks", "0");
> {code}
> *Update*
> find another bug about this class, {{key.serializer}} used
> {{org.apache.kafka.common.serialization.ByteArraySerializer}}, however, the
> key properties of Producer is Integer, codes list below:
> {code}
> props.put("key.serializer",
> "org.apache.kafka.common.serialization.ByteArraySerializer");
> ……………
> producer = new KafkaProducer<Integer, byte[]>(props);
> {code}
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