For Red Hat® Linux systems, you should install a couple of packages, sysstat and pstack, that are disabled by default, but are useful for troubleshooting purposes in the event that a problem occurs. The troubleshooting tool collect-support-data uses the iostat, mpstat, and pstack utilities to collect monitoring, performance statistics, and stack trace information on the server’s processes. For Red Hat systems, make sure that these packages are installed, for example:
$ sudo yum install sysstat gdb dstat -y