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doc-exports/docs/mrs/component-operation-guide-lts/mrs_01_24079.html
Yang, Tong 3f5759eed2 MRS comp-lts 2.0.38.SP20 version 
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Yang, Tong <yangtong2@huawei.com>
Co-committed-by: Yang, Tong <yangtong2@huawei.com>
2023-01-19 17:08:45 +00:00

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HoodieKeyException Is Reported When Data Is Collected

Question

Is it possible to use a nullable field that contains null records as a primary key when creating a Hudi table?

Answer

No. HoodieKeyException will be thrown.

Caused by: org.apache.hudi.exception.HoodieKeyException: recordKey value: "null" for field: "name" cannot be null or empty.
at org.apache.hudi.keygen.SimpleKeyGenerator.getKey(SimpleKeyGenerator.java:58)
at org.apache.hudi.HoodieSparkSqlWriter$$anonfun$1.apply(HoodieSparkSqlWriter.scala:104)
at org.apache.hudi.HoodieSparkSqlWriter$$anonfun$1.apply(HoodieSparkSqlWriter.scala:100)
Parent topic: Data Collection