Sockets stuck in FIN_WAIT_1

[Doug Barton]

Robert Blayzor wrote:
> On May 28, 2008, at 6:55 PM, Doug Barton wrote:
>> That's a known problem with FreeBSD 4, which is now well past EOL. I 
>> would suggest moving to FreeBSD 7 ASAP.
> 
> 
> 
> Is it?  I searched and searched and never found any hits or PR's 
> regarding this. 

Not sure where you looked then, but I not only saw the discussion 
multiple times on various lists, I know I posted about our experiences 
with it. :)

> When was it first fixed?  5.x?  6.x?  or not until 7?

The reason I suggested moving to 7 is that it was branched most 
recently, has the best new features, etc. If you have to jump FreeBSD 
versions, this is the one that will get you the most bang for your 
buck. If you aren't using SMP boxes and have a risk-averse 
environment, the latest version of 6 will get you where you need to go.

Please also note that while this problem has been tweaked somewhat in 
later versions, it's not always a problem that can be "fixed" in the 
OS. I'm guessing that you're using an Apache web server, since this is 
the application that most often leads to this problem. There used to 
be some helpful hints on Apache's web site for ways you can tune it to 
reduce the problem, not sure if they're still there or not.


hth,

Doug

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