Black-max12138 opened a new issue, #4275:
URL: https://github.com/apache/carbondata/issues/4275
Look at this line of code. `boolean hasNext = currentReader.nextKeyValue();`
If hasNext returns false and currentReader is not the last one, it indicates
that the iterator exits and subsequent data is not parsed. How to solve this
problem?
```
/**
* Return true if has next row
*/
public boolean hasNext() throws IOException, InterruptedException {
if (0 == readers.size() || currentReader == null) {
return false;
}
validateReader();
if (currentReader.nextKeyValue()) {
return true;
} else {
if (index == readers.size() - 1) {
// no more readers
return false;
} else {
// current reader is closed
currentReader.close();
// no need to keep a reference to CarbonVectorizedRecordReader,
// until all the readers are processed.
// If readers count is very high,
// we get OOM as GC not happened for any of the content in
CarbonVectorizedRecordReader
readers.set(index, null);
index++;
currentReader = readers.get(index);
boolean hasNext = currentReader.nextKeyValue();
if (hasNext) {
return true;
}
}
}
return false;
}
```
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