zhedoubushishi commented on PR #6081:
URL: https://github.com/apache/hudi/pull/6081#issuecomment-1181331944
> I have a quesion, if don't have FileINputFormat class, maybe it will cause
ClassNotFound when load this class?
Right. During the presto query, it would throw something like:
```
{{java.lang.NoSuchFieldError: LOG
at
org.apache.hudi.hadoop.HoodieCopyOnWriteTableInputFormat.makeExternalFileSplit(HoodieCopyOnWriteTableInputFormat.java:199)
at
org.apache.hudi.hadoop.HoodieCopyOnWriteTableInputFormat.makeSplit(HoodieCopyOnWriteTableInputFormat.java:100)
at
org.apache.hudi.hadoop.realtime.HoodieMergeOnReadTableInputFormat.doMakeSplitForRealtimePath(HoodieMergeOnReadTableInputFormat.java:266)
at
org.apache.hudi.hadoop.realtime.HoodieMergeOnReadTableInputFormat.makeSplit(HoodieMergeOnReadTableInputFormat.java:211)
at
org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:345)
at
org.apache.hudi.hadoop.realtime.HoodieMergeOnReadTableInputFormat.getSplits(HoodieMergeOnReadTableInputFormat.java:79)
at
org.apache.hudi.hadoop.HoodieParquetInputFormatBase.getSplits(HoodieParquetInputFormatBase.java:68)
at
com.facebook.presto.hive.StoragePartitionLoader.loadPartition(StoragePartitionLoader.java:278)
at
com.facebook.presto.hive.DelegatingPartitionLoader.loadPartition(DelegatingPartitionLoader.java:81)
at
com.facebook.presto.hive.BackgroundHiveSplitLoader.loadSplits(BackgroundHiveSplitLoader.java:224)
at
com.facebook.presto.hive.BackgroundHiveSplitLoader.access$700(BackgroundHiveSplitLoader.java:50)
at
com.facebook.presto.hive.BackgroundHiveSplitLoader$HiveSplitLoaderTask.process(BackgroundHiveSplitLoader.java:153)
```
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