nkalmar commented on issue #1629: HADOOP-16579 - Upgrade to Apache Curator 4.2.0 and ZooKeeper 3.5.5 URL: https://github.com/apache/hadoop/pull/1629#issuecomment-541559263 If we only update Curator to 4.2.0, TestZKSignerSecretProvider will fail because curator is looking for a non-existent field: java.lang.NoSuchFieldError: configFileStr. My understanding is that curator decides runtime if it runs with 3.4 or 3.5 ZK compatibility mode. Error logs show otherwise unfortunately. (I tried both excluding and leaving curator’s ZK dependency version) If we also update ZooKeeper to 3.5.5, TestZKSignerSecretProvider will run just fine, but TestZKFailoverController will Timeout because ZKFailoverController.doGracefulFailover() no longer works (I think it can’t read back which node became active. Maybe has to do with the need in 3.5 to whitelist 4 letter word commands?)
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