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https://issues.apache.org/jira/browse/HADOOP-14623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16099702#comment-16099702
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Hongyuan Li commented on HADOOP-14623:
--------------------------------------
Hi, [~bharatviswa], you are right. It does not matter. The value of param
{{key.serializer}} in the origin code is {{ByteArraySerializer}}, which is not
the correct corespondent serializer class of type Integer, so i changed the
type to {{byte[]}} although the key has not been used.
If this would confuse you, i will remove the modification and resubmit a new
patch.
Thanks anyway for your code review.
> 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, HADOOP-14623-002.patch,
> HADOOP-14623-003.patch, HADOOP-14623-004.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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