Fwd: Re: [OpenAFS] Salvager runs constantly

[Steve Devine]

All,

I received this from Todd and Derrick and they are right I was able to put 
everything in except the -dontdelay arg.
Thanks to all 
/sd

----------  Forwarded Message  ----------
Subject: Re: [OpenAFS] Salvager runs constantly
Date: Thu,  6 Jun 2002 15:31:38 -0400 (EDT)
From: Todd_DeSantis@transarc.com
To: sdevine@msu.edu
Cc: shadow@dementia.org


Hi -

OpenAFS probably does not know about the

	-dontdelay

switch which stops some RX behavior to NOT delay return packets to a
client because of some constant error return.

One of RXs ways of preventing a client from killing a fileserver with
requests is that if it sees a client making a request which will
return an error - if that error happens 10 times in a row, then the
fileserver will delay sending back the response for 3 seconds.  So
this stops a constant attack from some rogue client.

Unfortunately, NT clients using EXPLORER try to stat all directories
and if the directory is NOT accessible by this user because of ACLs,
the fileserver sees these "Permission errors" as a constant error and
then delays the response to the cleint and the NT client performance
can suffer.

SO the -dontdelay does not place this 3 second delay into the error
return.

Thanks

Todd

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