cgivre commented on a change in pull request #2164:
URL: https://github.com/apache/drill/pull/2164#discussion_r582491028



##########
File path: 
contrib/format-hdf5/src/main/java/org/apache/drill/exec/store/hdf5/HDF5BatchReader.java
##########
@@ -323,53 +328,20 @@ private void openFile(FileSchemaNegotiator negotiator) 
throws IOException {
     InputStream in = null;
     try {
       in = 
negotiator.fileSystem().openPossiblyCompressedStream(split.getPath());
-      IHDF5Factory factory = HDF5FactoryProvider.get();
-      inFile = convertInputStreamToFile(in);
-      hdf5Reader = factory.openForReading(inFile);
+      hdfFile = HdfFile.fromInputStream(in);

Review comment:
       Interesting.  The BatchReader has a `close()` method which is executed 
when Drill is finished reading the file.  Is there a method in JHDF to purge 
the temp files, or would you suggest using a different method to load the file?
   
   
https://github.com/apache/drill/blob/5729e1f921eaceac8647ee6eee24a4c2bb31e21e/contrib/format-hdf5/src/main/java/org/apache/drill/exec/store/hdf5/HDF5BatchReader.java#L1229-L1236




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