danny0405 commented on issue #2874:
URL: https://github.com/apache/hudi/issues/2874#issuecomment-826558257


   > @danny0405 @yanghua Can one of you take a look at this ?
   > 
   > @hushenmin It looks like you're running into a `NullPointerException` at 
`at 
org.apache.hudi.hadoop.utils.HoodieRealtimeInputFormatUtils.lambda$null$8(HoodieRealtimeInputFormatUtils.java:91)
 `
   > This particular line points to 
https://github.com/apache/hudi/blob/master/hudi-hadoop-mr/src/main/java/org/apache/hudi/hadoop/utils/HoodieRealtimeInputFormatUtils.java#L91.
 It's possible that something isn't initialized here. Can you paste the 
contents of your .hoodie path ? I would like to see if there are any successful 
commits
   
   It is because flink has global index, and it only writes log files, while 
the spark reader requires that a base file must exist, which is buggy.


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