Re: {bb} SSH checks not written to $BBVAR/logs

[Philip Clark <bblist@cannae.uklinux.net>]

On Fri, 2006-02-24 at 22:55, Eric Christian Berg wrote:
> Okay, after digging through the guts of Big Brother, here's what is 
> happening. The two messages that are getting "lost" are after an http 
> check which returns a fair amount of data. The bb-combo script is 
> packaging them all together and sending them along to bb. However, only 
> the first message appears to be getting processed and is truncated right 
> near the end. The other two are getting lost.
> 
> This would indicate to me that I had MAXLINE set too high. However, it 
> is set to 8192, which is the same as in src/bb.h, and the combined size 
> of the package is generally around 8105. Pulled the data through a hack 
> to bb-combo.sh and tried running it through by hand after sizing it and 
> got the same result, bb is cutting off the data and only processing the 
> first (truncated) record. For the time being, I'm reducing MAXLINE by 
> 1000 and this seems to have settled things down, but I'm curious as to 
> what might cause this behavior.

That sounds logical. The reason that I suspected the ssh daemon was
because of the emphasis of security. I could imagine that it might
not reject further connections, but simply let the client hang
indefinitely.

Instead, it looks like the http check is being over-stretched. The
basic test normally only asks for the page headers to keep things
fast. That shouldn't generate too much data, but you might get
better results if you create a special, less complex, page for
BB to use.

If you are interested in testing a particular (non-trivial) page,
it might be better to use an external, web content testing script.
As an added advantage, you would also be able to run this at a
less frequent interval if appropriate.

Cheers, Phil.



-- 
There's no real need to do housework -- after four years it
doesn't get any worse.

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