Resources for “A System Monitoring Dashboard”

Resources for the print article.
______________________

Comments

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

scripts could be improved, tested more thoroughly

Anonymous...'s picture

I read the article and looked forward to trying out the scripts. It seemed like just what we need. Some very good ideas in here but the scripts should probably be tested on a more common distro and checked for compliance with FHS.

I spent a few minutes to try testing the scripts and soon decided it was not worth the effort. Please let us know if the scripts have been fixed.

First... have the scripts gone through a unix2dos filter?? Why?

For example:


debian@:~/test$ ./monitor_web.sh
: bad interpreter: No such file or directory
debian@:~/test$ hexdump -C monitor_web.sh |head -n 1
00000000 23 21 2f 62 69 6e 2f 62 61 73 68 0d 0a 23 0d 0a |#!/bin/bash..#..|

Note the "0d 0a" AKA CR-LF which confused the bash shell interpreter.

After using unix2dos to remove these... I noticed some necessary editing to do in the monitor_disk.sh script:


GREP="/sbin/grep"
MOUNT="/sbin/mount"
AWK="/usr/bin/awk"

... why bother.... normally these are in the path... if it is really necessary to put the commands in variables... why not make it easy for readers and use locations that will just work. or even better, use "which" to set your variables. grep and mount are usually not in /sbin.

After this, I noticed that one script requires ksh. Not a big deal but, not mentioned in the article.

Thanks for the ideas though. I may consider writing a simple ssh based monitoring system.

In defence of the author:

Kurt Rudahl's picture

In defence of the author: ("these things are usually on the path...")

These are intended to be run by cron, where the normal user path may not be available. It is customary to supply an explicit path in such cases (which will, naturally, vary with the system).

RE: scripts could be improved, tested more thoroughly

John Ouellette's picture

Hi. Thanks for the feedback! That's the whole point of Open Source, full disclosure of code, and making it better!

As the author of the scripts they are presented as a soluton, not a product. The goal, of course, is to please as many customers as possible, and that's not always possible.

I will report great success at my company so far, which is why I wrote the article! Here' an external link for the the latest updates to these scripts:

http://monitorsuite.sourceforge.net

I personally support these in my spare time. Don't hesitate to contact me at my current email address, I welcome all feedback!

Regards,
-John

Agreed.

Anonymous Too's picture

I, too, downloaded the scripts as they looked like a great starting point for monitoring my systems, and, sadly, I have to agree with the poster before me that these scripts are replete with bugs. Even the way they were archived is broken. It appears the author made a big no-no: he made 'innocuous' last-minute changes which he did not test, perhaps to meet the LJ deadline, and ended up submitting very broken scripts.

In addition to the problems the poster above mentions, such basic things as forgetting to put a hash mark before a comment, and not putting a space between flags are found in at least the monitor_web.sh script. I've not tested the others yet.

Author: please do fix these problems and re-post.

White Paper
Linux Management with Red Hat Satellite: Measuring Business Impact and ROI

Linux has become a key foundation for supporting today's rapidly growing IT environments. Linux is being used to deploy business applications and databases, trading on its reputation as a low-cost operating environment. For many IT organizations, Linux is a mainstay for deploying Web servers and has evolved from handling basic file, print, and utility workloads to running mission-critical applications and databases, physically, virtually, and in the cloud. As Linux grows in importance in terms of value to the business, managing Linux environments to high standards of service quality — availability, security, and performance — becomes an essential requirement for business success.

Learn More

Sponsored by Red Hat

White Paper
Private PaaS for the Agile Enterprise

If you already use virtualized infrastructure, you are well on your way to leveraging the power of the cloud. Virtualization offers the promise of limitless resources, but how do you manage that scalability when your DevOps team doesn’t scale? In today’s hypercompetitive markets, fast results can make a difference between leading the pack vs. obsolescence. Organizations need more benefits from cloud computing than just raw resources. They need agility, flexibility, convenience, ROI, and control.

Stackato private Platform-as-a-Service technology from ActiveState extends your private cloud infrastructure by creating a private PaaS to provide on-demand availability, flexibility, control, and ultimately, faster time-to-market for your enterprise.

Learn More

Sponsored by ActiveState