2010/4/1 Marc Delisle marc@infomarc.info:
Philip Frank a écrit :
Hello everyone,
I'm a student from Munich, Germany and stumbled across the GSoC Idea of collecting the data that is shown on the server status page and rendering them as graphs over time. I will apply in the next days, here is what I thought of implementing when I'm accepted:
Data collection: In the past, I used rrdtool to collect stats on a server. Its datastore has a limited size - over time old entries get merged together and the data gets thinner, but is never completely deleted. Unfortunately, it is not very portable. Therefor, I would implement a similarily behaving datastore ontop of a mysql table. I think of storing each set of measures as a row and limit the number of total rows, making room for new entries by combining one pair of neighbouring old entries together.
Hi Philip, so you plan that an external process will collect data? Please have a look on this list archives, this was discussed a few days ago.
Hi Marc, i thought the process could be triggered by a cron, but if that is not an option, historic data can not be collected, i guess. How about a live monitoring tool? I could create a visualisation of the ratios of the different query types. Constantly updating that with ajax would be nice, and maybe even collecting the data in the browser and plotting graphes.
Philip
Plotting: On the ideas page GD is suggeted, but I would prefer to use processing.js, which is a javascript library that draws on a canvas element with a similar usage. To connect to the datastore I would build a json interface for the collected data.
Let me know, what you think of it!
Best regards, Philip
-- Marc Delisle http://infomarc.info
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