CI Link

https://gradle-enterprise.elastic.co/s/hisgflbzbygdm/tests/task/:x-pack:plugin:migrate:internalClusterTest/details/org.elasticsearch.xpack.migrate.action.ReindexDatastreamIndexTransportActionIT/testReadOnlyAddedBack?top-execution=1

Repro line

./gradlew ":x-pack:plugin:migrate:internalClusterTest" --tests "org.elasticsearch.xpack.migrate.action.ReindexDatastreamIndexTransportActionIT.testReadOnlyAddedBack" -Dtests.seed=26F53DBFCF4C0AF6

Does it reproduce?

Yes

Applicable branches

main

Failure history

No response

Failure excerpt

org.elasticsearch.xpack.migrate.action.ReindexDatastreamIndexTransportActionIT failed when backport to 8.18.0: #118990

Though failure was in a PR for a backport, this bug is in main. Creating this ticket so can mute test until fixed.