[OT]: Syslog issues?
paddy at panici.net
Wed Mar 21 16:21:14 GMT 2007
On Wed, Mar 21, 2007 at 03:43:28PM +0000, Dirk Koopman wrote:
> Luis Motta Campos wrote:
> > Dear M[ou]ngers
> > I'm facing a funny problem at work.
> > We have a very busy apache farm producing 40Gb of log files everyday,
> >and no centralized logging facility.
> > We're considering using syslog (or better, syslog-ng) to concentrate
> >all logs on a single spot, so we can handle, parse, and summarize all
> >information for human and machine consumption.
> Don't think any of the syslog daemons could reliably handle that sort of
> data. Remember that syslog's job is to try to store important messages
> that might allow you to diagnose a problem. Therefore they use slow disc
> writing methods (syncing etc) to make sure that stuff is written.
> Syslogd isn't expected to handle 40Gb/Day (~500KBytes or ~2250 lines per
> On some machines that would constitute a DoS attack!
If he's gonna log 40GB/day over the network, then he needs the network
capacity for that.
Is writing 500KB/s to disk such a big issue ?
I would have thought the analysis part would be a bigger consideration.
I've never used any of them, but IIRC there are few implementations out
there to log from apache over the network to something like mysql or
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