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[1.10.x] Flink: Add LICENSE entries for bundled flink-metrics-dropwizard #16130

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Merged
pvary merged 1 commit into from
Apr 29, 2026
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[1.10.x] Flink: Add LICENSE entries for bundled flink-metrics-dropwizard #16130

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4 changes: 4 additions & 0 deletions docs/docs/flink-writes.md
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Expand Up @@ -210,6 +210,10 @@ They should have the following key-value tags.
| dataFilesSizeHistogram | Histogram | Histogram distribution of data file sizes (in bytes). |
| deleteFilesSizeHistogram | Histogram | Histogram distribution of delete file sizes (in bytes). |

The `Histogram` metrics above require `flink-metrics-dropwizard` on the classpath, which is not shipped
by Flink by default. When using `iceberg-flink-runtime`, this dependency is already bundled. When using
the `iceberg-flink` artifact directly, add `org.apache.flink:flink-metrics-dropwizard` as a dependency.

Committer metrics are added under the sub group of `IcebergFilesCommitter`.
They should have the following key-value tags.

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4 changes: 2 additions & 2 deletions flink/v1.19/build.gradle
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Expand Up @@ -33,7 +33,7 @@ project(":iceberg-flink:iceberg-flink-${flinkMajorVersion}") {
implementation project(':iceberg-hive-metastore')

compileOnly libs.flink119.avro
// for dropwizard histogram metrics implementation
// dropwizard histogram metrics (optional in Flink)
compileOnly libs.flink119.metrics.dropwizard
compileOnly libs.flink119.streaming.java
compileOnly "${libs.flink119.streaming.java.get().module}:${libs.flink119.streaming.java.get().getVersion()}:tests"
Expand Down Expand Up @@ -168,7 +168,7 @@ project(":iceberg-flink:iceberg-flink-runtime-${flinkMajorVersion}") {
exclude group: 'com.google.code.findbugs', module: 'jsr305'
}

// for dropwizard histogram metrics implementation
// To support dropwizard histogram metrics (not shipped by Flink by default)
implementation libs.flink119.metrics.dropwizard

// for integration testing with the flink-runtime-jar
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11 changes: 9 additions & 2 deletions flink/v1.19/flink-runtime/LICENSE
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Expand Up @@ -461,11 +461,18 @@ License: https://www.apache.org/licenses/LICENSE-2.0.html

--------------------------------------------------------------------------------

This binary artifact contains Codehale Metrics.
This product bundles Dropwizard Metrics.

Copyright: (c) 2010-2013 Coda Hale, Yammer.com, 2014-2021 Dropwizard Team
Home page: https://github.com/dropwizard/metrics
License: https://www.apache.org/licenses/LICENSE-2.0.html
License: Apache License, Version 2.0 - https://www.apache.org/licenses/LICENSE-2.0

--------------------------------------------------------------------------------

This product bundles Apache Flink's optional support for Dropwizard Metrics.

Copyright: 2014-2026 The Apache Software Foundation
Project URL: https://flink.apache.org/

--------------------------------------------------------------------------------

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4 changes: 2 additions & 2 deletions flink/v1.20/build.gradle
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Expand Up @@ -33,7 +33,7 @@ project(":iceberg-flink:iceberg-flink-${flinkMajorVersion}") {
implementation project(':iceberg-hive-metastore')

compileOnly libs.flink120.avro
// for dropwizard histogram metrics implementation
// dropwizard histogram metrics (optional in Flink)
compileOnly libs.flink120.metrics.dropwizard
compileOnly libs.flink120.streaming.java
compileOnly "${libs.flink120.streaming.java.get().module}:${libs.flink120.streaming.java.get().getVersion()}:tests"
Expand Down Expand Up @@ -168,7 +168,7 @@ project(":iceberg-flink:iceberg-flink-runtime-${flinkMajorVersion}") {
exclude group: 'com.google.code.findbugs', module: 'jsr305'
}

// for dropwizard histogram metrics implementation
// To support dropwizard histogram metrics (not shipped by Flink by default)
implementation libs.flink120.metrics.dropwizard

// for integration testing with the flink-runtime-jar
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11 changes: 9 additions & 2 deletions flink/v1.20/flink-runtime/LICENSE
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Expand Up @@ -461,11 +461,18 @@ License: https://www.apache.org/licenses/LICENSE-2.0.html

--------------------------------------------------------------------------------

This binary artifact contains Codehale Metrics.
This product bundles Dropwizard Metrics.

Copyright: (c) 2010-2013 Coda Hale, Yammer.com, 2014-2021 Dropwizard Team
Home page: https://github.com/dropwizard/metrics
License: https://www.apache.org/licenses/LICENSE-2.0.html
License: Apache License, Version 2.0 - https://www.apache.org/licenses/LICENSE-2.0

--------------------------------------------------------------------------------

This product bundles Apache Flink's optional support for Dropwizard Metrics.

Copyright: 2014-2026 The Apache Software Foundation
Project URL: https://flink.apache.org/

--------------------------------------------------------------------------------

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4 changes: 2 additions & 2 deletions flink/v2.0/build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ project(":iceberg-flink:iceberg-flink-${flinkMajorVersion}") {
implementation project(':iceberg-hive-metastore')

compileOnly libs.flink20.avro
// for dropwizard histogram metrics implementation
// dropwizard histogram metrics (optional in Flink)
compileOnly libs.flink20.metrics.dropwizard
compileOnly libs.flink20.streaming.java
compileOnly "${libs.flink20.streaming.java.get().module}:${libs.flink20.streaming.java.get().getVersion()}:tests"
Expand Down Expand Up @@ -168,7 +168,7 @@ project(":iceberg-flink:iceberg-flink-runtime-${flinkMajorVersion}") {
exclude group: 'com.google.code.findbugs', module: 'jsr305'
}

// for dropwizard histogram metrics implementation
// To support dropwizard histogram metrics (not shipped by Flink by default)
implementation libs.flink20.metrics.dropwizard

// for integration testing with the flink-runtime-jar
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11 changes: 9 additions & 2 deletions flink/v2.0/flink-runtime/LICENSE
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Original file line number Diff line number Diff line change
Expand Up @@ -461,11 +461,18 @@ License: https://www.apache.org/licenses/LICENSE-2.0.html

--------------------------------------------------------------------------------

This binary artifact contains Codehale Metrics.
This product bundles Dropwizard Metrics.

Copyright: (c) 2010-2013 Coda Hale, Yammer.com, 2014-2021 Dropwizard Team
Home page: https://github.com/dropwizard/metrics
License: https://www.apache.org/licenses/LICENSE-2.0.html
License: Apache License, Version 2.0 - https://www.apache.org/licenses/LICENSE-2.0

--------------------------------------------------------------------------------

This product bundles Apache Flink's optional support for Dropwizard Metrics.

Copyright: 2014-2026 The Apache Software Foundation
Project URL: https://flink.apache.org/

--------------------------------------------------------------------------------

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