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NIFI-8021: Provide the ability to pin partitions to particular hosts … #4672

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…when using ConsumeKafka processors

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Enables X functionality; fixes bug NIFI-YYYY.

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Can we add in the additional details what happens in case the number of partitions is changed on the topic while NiFi's processors are running?

<h2>Consumer Partition Assignment</h2>
<p>
By default, this processor will subscribe to one or more Kafka topics in such a way that the topics to consume from are randomly
assigned to to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming
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Suggested change
assigned to to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming
assigned to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming

</p>

<p>
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern."
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Suggested change
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern."
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern".

<h2>Consumer Partition Assignment</h2>
<p>
By default, this processor will subscribe to one or more Kafka topics in such a way that the topics to consume from are randomly
assigned to to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming
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Suggested change
assigned to to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming
assigned to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming

</p>

<p>
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern."
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Suggested change
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern."
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern".

<h2>Consumer Partition Assignment</h2>
<p>
By default, this processor will subscribe to one or more Kafka topics in such a way that the topics to consume from are randomly
assigned to to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming
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Suggested change
assigned to to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming
assigned to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming

</p>

<p>
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern."
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Suggested change
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern."
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern".

<h2>Consumer Partition Assignment</h2>
<p>
By default, this processor will subscribe to one or more Kafka topics in such a way that the topics to consume from are randomly
assigned to to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming
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Suggested change
assigned to to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming
assigned to the nodes in the NiFi cluster. Consider a scenario where a single Kafka topic has 8 partitions and the consuming

</p>

<p>
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern."
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Suggested change
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern."
In order to use a static mapping of Kafka partitions, the "Topic Name Format" must be set to "names" rather than "pattern".

@asfgit asfgit closed this in 7848ba5 Nov 18, 2020
driesva pushed a commit to driesva/nifi that referenced this pull request Mar 19, 2021
…when using ConsumeKafka processors

Signed-off-by: Pierre Villard <pierre.villard.fr@gmail.com>

This closes apache#4672.
krisztina-zsihovszki pushed a commit to krisztina-zsihovszki/nifi that referenced this pull request Jun 28, 2022
…when using ConsumeKafka processors

Signed-off-by: Pierre Villard <pierre.villard.fr@gmail.com>

This closes apache#4672.
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