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web site health monitoring: part 2

Last weekend I finished implementing the CPU temperature and filesystem utilization graphs. They work fine, though I may change the filesystem utilization graphs to just be category charts with a single set; filesystem utilization doesn’t change frequently. The latest can be seen here.

I deployed the health monitoring on the new spcarsplus.com web site for Randy. That host doesn’t have CPU temperature reporting, so I made changes to the code to not display that graph if CPU temperatures are not available.

There’s a problem with the BIOS on rfdm.com: the CPU temperatures are incorrect. I have newer BIOS to load, I just haven’t gotten around to it yet.

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web site health monitoring: part 1

This past weekend I finished the data collector for web site health. I keep track of CPU temperatures, CPU utilization and filesystem utilization.

The CPU utilization graph is done. The others are in the works. Like my traffic graphs, the user interface is a Wt application.

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web site traffic monitoring: part 2

I’m done with the first pass of traffic monitoring. The traffic page can show graps of web site traffic on port 80 for the current day, current week, previous week, current month, previous month, current year and previous year. Good enough for now.

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web site traffic monitoring: part 1

Last weekend I wrote a simple program to store traffic statistics (packets and bytes for both input and output) for port 80 of my new web server. Actually, any pcap filter expression can be used, I just happen to only be tracking port 80 at the moment. I save data every 5 minutes.

This weekend I spent a little time writing an application using Wt to graph the traffic data. The graph works, but it needs some cleanup. In the process, I wound up making some changes to the Wt::Chart classes because it didn’t let me use the desired colors for axis labels, titles and legend text. I’ll have to check these changes into my repository so I can diff them and send a patch to the Wt author.

I now just need some utility classes and functions to allow graphing various time periods of interest.