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S3FileIO mirrors the hyphenated access-key and secret-key options to the dotted keys read by S3A, but not the session token. s3.session-token was rewritten to fs.s3a.session-token, which S3A never reads, so temporary credentials were signed without their token. Mirror it like its siblings and document the option in the S3 filesystem docs. Generated-by: Claude Code
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Purpose
fix #10227
S3FileIOmirrors hyphenatedaccess-key/secret-keyto the dotted S3A keys, but not the session token.s3.session-tokenbecamefs.s3a.session-token, which S3A never reads, so temporary STS credentials passed via Flink/Spark/Hive catalog options were signed without the token (403).{"fs.s3a.session-token", "fs.s3a.session.token"}toMIRRORED_CONFIG_KEYS; precedence matches the existing mirrors. Dotteds3.session.tokenis unaffected.s3.session-token([python] Support S3 options in filesystem catalog #7712).s3.session-tokenin the S3 section offilesystems.mdx.Tests
S3FileIOConfigTest:testHyphenSessionTokenIsMirrored(conf key plus resolvedAwsSessionCredentials),testDotSessionTokenIsKept.testHyphenSessionTokenIsMirroredfails (fs.s3a.session.tokenis null).mvn -pl paimon-filesystems/paimon-s3-impl clean installgreen on JDK 11 (S3FileIOConfigTest2/2, spotless/checkstyle); Docker-based MinIO tests not run locally.