[Spread-users] Spread daemon -8 and -11 errors
Chetan Gadgil
cgadgil_list at cxoindia.dnsalias.com
Mon Dec 22 22:51:47 EST 2003
I have the same situation - I get arbitrary disconnects:
(The SP_receive call returns CONNECTION_CLOSED)
I am using spread under Windows XP Professional, with all the patches
(service packs) and spread compiled with MS-VS.NET 2003.
This tends to happen under heavy load situations. (Large number of
messages)
Chetan
Bucy's Law:
Nothing is ever accomplished by a reasonable man.
> -----Original Message-----
> From: spread-users-admin at lists.spread.org
> [mailto:spread-users-admin at lists.spread.org] On Behalf Of
> Bill Montgomery
> Sent: Tuesday, December 23, 2003 3:01 AM
> To: mls-users at lists.backhand.org
> Cc: spread-users at lists.spread.org
> Subject: [Spread-users] Spread daemon -8 and -11 errors
>
>
> Hi,
> I'm running mod_log_spread with apache 2.0.47, using the prefork MPM,
> and spread 3.17.1. There is a spread daemon running locally
> on each web
> server, specified with the following line in httpd.conf:
>
> SpreadDaemon 3333
>
> Most (75%?) of the apache log messages are being sent over the spread
> ring and are recorded by spreadlogd on my logging host.
> However, portion
> of the log messages cause an error, and are not succesfully
> sent to the
> spread daemon. The errors look like this in the apache error log:
>
> [Mon Dec 22 14:24:42 2003] [crit] [client 66.193.5.50] Spread Daemon
> returned an error. -11 This Request could not be logged
> /author/upload/upload_progress.cgi
>
> There are also occasional -8 spread errors. Looking at sp.h in the
> spread source tells me that these errors are
> CONNECTION_CLOSED (-8) and
> ILLEGAL_SESSION (-11). These errors are returned a dozen different
> places in the spread daemon code, and I wasn't able to tell
> why in most
> cases.
>
> READMEs, Google, and mailing list archives have not turned up
> anything
> useful. I tried linking mod_log_spread.so against libtspread,
> thinking
> it might be a problem with thread safety (don't think it
> should be, with
> the apache prefork MPM), but the same symptoms are present.
> Could this
> be a message length problem? I don't have any absurdly long URL's I'm
> servering up, and I'm using the standard "combined" log
> format. Probably
> no measureable percentage of log messages longer than 300 characters,
> except that I'm losing a large fraction of the log messages.
>
> Also, I see the same symptoms on a web server that is under a
> heavy load
> (~10 log messages/sec) and another that has no load (just me
> testing). I
> see no pattern to the failures on the server under heavy
> load, but I can
> hit certain pages that will always generate a spread error on
> the test
> server.
>
> Anyone ever seen something like this? TIA for your help.
>
> Best Regards,
> Bill Montgomery
>
>
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