wecharyu opened a new pull request, #8296:
URL: https://github.com/apache/hudi/pull/8296
### Change Logs
We found Hudi will record the default empty preCombineKey in
`hoodie.properties` file, and this will cause the following exception when we
insert new data:
```bash
Caused by: org.apache.hudi.exception.HoodieException: (Part -) field not
found in record. Acceptable fields were :[id, name, price]
at
org.apache.hudi.avro.HoodieAvroUtils.getNestedFieldVal(HoodieAvroUtils.java:557)
at
org.apache.hudi.HoodieSparkSqlWriter$$anonfun$createHoodieRecordRdd$1$$anonfun$apply$5.apply(HoodieSparkSqlWriter.scala:1134)
at
org.apache.hudi.HoodieSparkSqlWriter$$anonfun$createHoodieRecordRdd$1$$anonfun$apply$5.apply(HoodieSparkSqlWriter.scala:1127)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:410)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:410)
at
org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:193)
at
org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:62)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:99)
at
org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:55)
at org.apache.spark.scheduler.Task.run(Task.scala:123)
at
org.apache.spark.executor.Executor$TaskRunner$$anonfun$10.apply(Executor.scala:408)
at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1360)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:414)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
```
So we prefer an empty check for preCombineKey in `PropertyBuilder` to avoid
this issue.
### Impact
No
### Risk level (write none, low medium or high below)
None
### Documentation Update
None
### Contributor's checklist
- [ ] Read through [contributor's
guide](https://hudi.apache.org/contribute/how-to-contribute)
- [ ] Change Logs and Impact were stated clearly
- [ ] Adequate tests were added if applicable
- [ ] CI passed
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