Trash cleaners

Overview

The trash cleaning system at UCSC has evolved from a simple one-line cron job that removed older files from the /trash/ directory into a complex set of interlocking scripts. This discussion outlines the procedures and lock files that keep the system running safely.

Primary trash directory

The current trash directory NFS server is on the server: rrnfs1

You can login to that machine via the qateam user.

A cron job running under the root user calls the scripts in the qateam directory. It is currently running once very 4 hours, at times: 00:10 04:10 08:10 12:10 16:10 20:10 The cluster admins maintain this root cron tab entry, it is a single command:

 /home/qateam/trashCleaners/hgwbeta/trashCleanMonitor.sh searchAndDestroy

This hgwbeta/trashCleanMonitor.sh script is going to clean trash files for hgwbeta custom tracks, and then call the primary RR trashCleanMonitor.sh to do the big job of cleaning the RR custom tracks.

Cleaner lock file

The trashCleanMonitor.sh script uses a lock file to prevent it from overrunning an existing running instance of these scripts.