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From "Hongyuan Li (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HADOOP-14623) fixed some bugs in KafkaSink
Date Sat, 08 Jul 2017 09:21:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16079033#comment-16079033
] 

Hongyuan Li edited comment on HADOOP-14623 at 7/8/17 9:20 AM:
--------------------------------------------------------------

I highly recommend Four steps:
1、should use {{acks}} = {{1}}.
2、add  {{https://repository.apache.org/content/repositories/releases}} repo,  the {{apache
snapshot rep}} doesnot have a higher version kafka module, the version of which is less than
{{0.8.2}}
3、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.
4、 Use ProducerConfig.XXX instead of using string value  directly. For example, use 
{{ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG}} instead of {{key.serializer}}

 Thanks for any advice. latest patch has implemeted above.


was (Author: hongyuan li):
I highly recommend Four steps:
1、should use {{acks}} = {{1}}.
2、add  {{https://repository.apache.org/content/repositories/releases}} repo,  the {{apache
snapshot rep}} doesnot have a higher version kafka module, the version of which is less than
{{0.8.2}}
3、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.
4、 Use ProducerConfig.XXX instead of using string value  directly. For example, use 
{{ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG}} instead of {{key.serializer}}


 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, HADOOP-14623-002.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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