Martijn Visser created FLINK-41378:
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Summary: Raise the minimum supported Hadoop version to 3.4.3
Key: FLINK-41378
URL: https://issues.apache.org/jira/browse/FLINK-41378
Project: Flink
Issue Type: Technical Debt
Components: FileSystems
Reporter: Martijn Visser
Assignee: Martijn Visser
Flink compiles and tests against Hadoop 2.10.2, but on Java 23 and later Hadoop
before 3.4.3 fails with getSubject is not supported (HADOOP-19212). That is why
FLINK-40603 already builds the Java 25 profile against 3.4.3. Hadoop 3.4.3 also
runs on Java 11, so we can use it for every Java version and drop Hadoop 2.
This sets flink.hadoop.version to 3.4.3 and removes the Java 25 override. It
also moves the CI stages that pass -Dflink.hadoop.version=2.10.2 to the
default, folds the hadoop3-tests profiles into the default build, moves the
YARN e2e test cluster to Hadoop 3 and updates the docs.
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