I'm getting the following error:
<<<
java.io.FileNotFoundException: /home/user/image.jpg (Too many open files)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:106)
at com.mongodb.gridfs.GridFS.createFile(GridFS.java:239)
<<<

I'm migrating a Oracle DB to MongoDB. For the work I'm using several threads which reads Orcale and put the information to MongoDB.
Therefor im crawling a filesystem for different files, which need to be inserted in MongoDB.
My Code - within the thread - where I'm receiving the exception:

File file = new File(filePath);
GridFSInputFile inputFile = null;
try {
if(!file.exists())

{ throw new FileNotFoundException("File: " + filePath + " does not exist."); }

inputFile = grid.createFile(file);
inputFile.put("media", "file");
inputFile.save();
} catch (IOException e)

{ log.error("MedienDBWorker addFile() - ID: " + workID + " ******* ", e); }

Is seams that GridFSInputFile is creating an InputStream and after saving the file, the InputStream isn't closed nor is there a method to close the stream.
How should this be handled?

My workaround is:
File file = new File(filePath);
GridFSInputFile inputFile = null;
try {
if(!file.exists())

{ throw new FileNotFoundException("File: " + filePath + " does not exist."); }

final InputStream is = new FileInputStream(file);
try

{ inputFile = grid.createFile(is,file.getName()); inputFile.put("media", "file"); inputFile.save(); }

finally

{ is.close(); }

} catch (IOException e)

{ log.error("MedienDBWorker addFile() - ID: " + workID + " ******* ", e); }