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Copy file name to clipboardexpand all lines: docs/modules/nifi/pages/usage_guide/index.adoc
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= Usage guide
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This section will help you to use various aspects of the Stackable Operator for Apache NiFi. For a general introduction into the operator follow the xref:getting_started/index.adoc[] guide. Below is a general overview of some configuration aspects, have a look at the subpages for details.
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This section will help you to use various aspects of the Stackable Operator for Apache NiFi.
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For a general introduction into the operator follow the xref:getting_started/index.adoc[] guide.
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Below is a general overview of some configuration aspects, have a look at the subpages for details.
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The cluster is configured via a YAML manifest file. This custom resource specifies the amount of replicas for each role group or role specific configuration like resource requests.
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The cluster is configured via a YAML manifest file.
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This custom resource specifies the amount of replicas for each role group or role specific configuration like resource requests.
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The following listing shows an example configuration:
Copy file name to clipboardexpand all lines: docs/modules/nifi/pages/usage_guide/listenerclass.adoc
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= Service exposition with ListenerClasses
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Apache NiFi offers a web UI and an API. The Operator deploys a service called `<name>` (where `<name>` is the name of the NifiCluster) through which NiFi can be reached.
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Apache NiFi offers a web UI and an API.
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The Operator deploys a service called `<name>` (where `<name>` is the name of the NifiCluster) through which NiFi can be reached.
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This service can have either the `cluster-internal` or `external-unstable` type. `external-stable` is not supported for NiFi at the moment. Read more about the types in the xref:concepts:service-exposition.adoc[service exposition] documentation at platform level.
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This service can have either the `cluster-internal` or `external-unstable` type.
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`external-stable` is not supported for NiFi at the moment.
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Read more about the types in the xref:concepts:service-exposition.adoc[service exposition] documentation at platform level.
Copy file name to clipboardexpand all lines: docs/modules/nifi/pages/usage_guide/writing-to-iceberg-tables.adoc
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= Writing to Iceberg tables
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https://iceberg.apache.org/[Apache Iceberg] is a high-performance format for huge analytic tables. Iceberg brings the reliability and simplicity of SQL tables to big data, while making it possible for engines like Spark, Trino, Flink, Presto, Hive and Impala to safely work with the same tables, at the same time.
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https://iceberg.apache.org/[Apache Iceberg] is a high-performance format for huge analytic tables.
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Iceberg brings the reliability and simplicity of SQL tables to big data, while making it possible for engines like Spark, Trino, Flink, Presto, Hive and Impala to safely work with the same tables, at the same time.
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NiFi supports a `PutIceberg` processor to add rows to an existing Iceberg table https://issues.apache.org/jira/browse/NIFI-10442[starting from version 1.19.0].
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As of NiFi version `1.23.1` only `PutIceberg` is supported, you need to create and compact your tables with other tools such as Trino or Spark (both included in the SDP).
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