JetS3t fills up my /tmp directory. How should I remove the old files?

Question

I'm developing some HTTP server software on Linux that uses JetS3t to retrieve files from S3. The files are all around 5MB. Over time, JetS3t creates a large number of *.tmp files in the /tmp directory.

However, since this is all running on a server that is never rebooted, the files never get thrown away. Instead, they eventually fill up the root partition, causing a number of problems (like dropped HTTP connections, etc.)

Is there a way to configure JetS3t in a way that causes it to clean up after itself?

Thanks!

Answer 1

I came up with an inelegant, but working solution. I simply added a cron job that periodically runs the following command:

find /tmp/*tmp -amin +10 -exec rm -f {} \;

Basically, find locates all of JetS3t's tmp files that were accessed at least ten minutes ago (thanks to -atime +10) and then deletes them.

This mimics the behavior of tmpreaper or tmpwatch present on some systems. For others using these apps, beware, as they can facilitate some setuid exploits. I realize my approach may also be susceptible to the same exploits, but for now I have no choice.