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Re: Stats for a webserver

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: Stats for a webserver
From: Johan van den Berg <vdberj@xxxxxxxxxxx>
Date: Wed, 11 Jan 2006 20:45:44 +0200
I can confirm that this works like a charm. I have 4 nodes, 1
fileserver, and 1 lvs machine...

The nodes are high usage, and log everything to syslog using "|
logger..." syntax in apache, and syslog forwards to @fileserver.

Fileserver uses the - option before a filename to only sync the access
log when needed to file, so that the access logs don't cause too much
filesystem access on the fileserver.

I am though concerned that I have every once in a while seen a line or
two go missing if I push too much into syslog at one time...

Can anyone confirm this?

Joe

On Fri, 2005-12-23 at 11:55 -0800, Todd Lyons wrote:
> On Thu, Dec 22, 2005 at 04:15:30PM -0800, Mark wrote:
> 
> >I think what Joseph meant was whether they get mingled in a way that a line 
> >(or log entry) of server A hits the log in the middle of
> >writing an entry for server B, thereby destroying both entries and causing 
> >syntax errors.
> >Could that happen, or is something making sure that it will not?
> 
> Oh, I see.  In that case, no one hosts line will be interrupted but
> another hosts's line.  The lines will be intermingled, but they will be
> complete.  Here's an example:
> 
> Dec 23 11:48:09 smtp2 sm-mta[7171]: jBNJm7WM007171: Milter add: header: 
> X-Spam-Status: Yes, hits=30.5 required=5.0 
> tests=BAYES_99,DRUGS_ERECTILE,\n\tDRUGS_MALEDYSFUNCTION,FORGED_RCVD_HELO,HTML_30_40,HTML_MESSAGE,\n\tHTML_MIME_NO_HTML_TAG,MIME_HEADER_CTYPE_ONLY,MIME_HTML_ONLY,\n\tNO_REAL_NAME,URIBL_AB_SURBL,URIBL_JP_SURBL,URIBL_OB_SURBL,URIBL_SBL,\n\tURIBL_SC_SURBL,URIBL_WS_SURBL
>  autolearn=no version=3.1.0-gr0
> Dec 23 11:48:09 smtp2 sm-mta[7171]: jBNJm7WM007171: Milter: data, reject=550 
> 5.7.1 Blocked by SpamAssassin
> Dec 23 11:48:09 smtp2 sm-mta[7171]: jBNJm7WM007171: to=<dianag@xxxxxxxxxx>, 
> delay=00:00:01, pri=30500, stat=Blocked by SpamAssassin
> Dec 23 11:48:09 smtp1 sm-mta[10021]: jBNJm8o0010021: 
> from=<qylyrxy@xxxxxxxxxxx>,size=0, class=0, nrcpts=0, proto=SMTP, daemon=MTA, 
> relay=[82.131.161.22]
> Dec 23 11:48:09 smtp2 spamd[26407]: prefork: child states: IIIII
> Dec 23 11:48:09 smtp1 sm-mta[9872]: jBNJlQPs009872: <asing@xxxxxxxxxxx>... 
> User unknown
> Dec 23 11:48:09 smtp1 sm-mta[10010]: jBNJm3SU010010: ruleset=check_rcpt, 
> arg1=<admin@xxxxxxxxxxx>, relay=24-176-185-20.dhcp.reno.nv.charter.com 
> [24.176.185.20] (may be forged), reject=550 5.7.1 <admin@xxxxxxxxxxx>... 
> Relaying denied. IP name possibly forged [24.176.185.20]
> 


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