Known Issues in Apache Kudu
Learn about the known issues in Kudu, the impact or changes to the functionality, and the workaround.
- Kudu HMS Sync is disabled and is not yet supported
- You get "The user 'kudu' is not part of group 'hive' on the following hosts: " warning by the Host Inspector
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If you are using fine grained authorization for Kudu, and you are also using Kudu-HMS integration with HDFS-Sentry sync, then you may get the "The user 'kudu' is not part of group 'hive' on the following hosts: " warning while upgrading.
- KUDU-3619: Major delta compaction for a tablet might fail for particular workloads due to a bug introduced with KUDU-3367
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A bug has been introduced with KUDU-3367 functionality. The bug manifests itself when a tablet server's maintenance thread attempts to run a major delta compaction on a tablet where many rows have been deleted, and the attempt fails with an error. To know more about the error message pattern, see KUDU-3619. If that happens, the corresponding tablet might accumulate a lot of updates that cannot be compacted and later garbage collected. In extreme cases, it could lead to running out of disk space when many tablet replicas hosted at the same tablet server hit the issue.