Too many open files: how many are open, what they are, and how many can the JVM open

Question

I\'m getting this exception in Java:

java.io.FileNotFoundException: (Too many open files) 

I\'m looking for the ways to eliminate this prob

Answer 1

Since you are on Linux, I'd suggest, that you check the /proc-Filesystem. Inside proc, you will find a folder with the PID of your process containing a folder calld 'fd'. If your process id is 1234, the path is be

/proc/1234/fd

Inside that folder, you will find links to all opened files (do a 'ls -l'). Usually, you can tell by the filename which library / code might open and not close the file.