I have created a script to clear up the /var filesystem once it reaches > 90%.
This is part of the script :
To test if this script works, I execute the command in the terminal (only to clear one of the filesystems above). However it seemed to run for an extremely long time. Therefore I sensed that something could be wrong with the statements I used - perhaps the for loop?
These are the steps I executed :
Are the above steps correct? Why does the command run for a long time?
Last edited by anaigini45; 05-09-2017 at 07:58 AM..
Have you tried removing all of your ELIF commands, and only work with each DIR one-by-one? That would allow you to se which of those eight commands is your culprit.
Is /temp part of root volume group or separated ?
Can you check sar -d 3 10 # <-- example 10 times every 3 sec
You can use -b options as well to check how the I/O is going on.
Do you have databases or other applications running on root vg disk(s) ?
Check out the process table using ps command and top
You are looking for 'runaway' processes, zombies or anything that actually is issuing intensive I/O.
Feel free to post those here, obfuscating information if any.
Omiting -v tar option could provide some performance benefit as well, again depending on the mostly CPU resources available.
Your script does not work for several reasons.
The du -x ... is run in the current directory.
root's home directory is / so it takes very long to traverse all the files. Then, the du output consists of numbers and directories. The for loop cycles through all of them. The code in the loop is run over and over again.
Now you know why it takes so long.
--
Once upon a time I created a script that rotates HP-UX system log files.
Useful on systems that are not regularly rebooted.
It is run by the crontab entry:
And the executable /usr/lib/newsyslog looks like this
If you have understood it, you can add more things to the LOGS= strings.
Last edited by MadeInGermany; 05-10-2017 at 04:57 PM..
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