Writing directly into the database ensures data loss during any sort of
database maintenance, performance degradation, or outage. Writing first to a
log file (or other asynchronous queueing mechanism) allows for
considerable operational flexibility. The wiki sketches the recommended

-John Kalucki
Infrastructure, Twitter Inc.

On Sat, Jan 16, 2010 at 10:13 AM, GeorgeMedia <georgeme...@gmail.com> wrote:

> Just looking for thoughts on this.
> I am consuming the gardenhose via a php app on my web server. So far
> so good. The script simply creates a new file every X amount of time
> and starts feeding the stream into it so I get a continuous stream of
> fresh data and I can delete old data via cron. I plan to access the
> stream (files) with separate processes for further json parsing and
> data mining.
> But then that got me to thinking about simply feeding the data into a
> MySQL database for easier data manipulation and indexing. Would that
> cause a more stressful server load with the constant INSERT queries vs
> a process just dumping the data into a file [ via PHP fputs() ] that
> is perpetually open?
> What about simply running the php process and accessing the "stream"
> directly? Only grabbing a snapshot of the data when a process needs
> it? I'm not really concerned with historical data as my web based app
> is more focused on trends at a given moment. Just wondering out loud
> if simply letting the process run in the background grabbing data
> would eventually fill up any caches or system memory.

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