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From Gerald Shifrin <>
Subject [users@httpd] Invalid argument: setsockopt: (TCP_NODELAY)
Date Fri, 24 Jan 2003 19:46:32 GMT
I've searched all over and haven't found any clues for this problem. There
was a posting earlier this month that appeared to ask the same question (see
below), but I did not see any responses.

We're running Apache/1.3.27 (Unix) mod_ssl/2.8.11 OpenSSL/0.9.6g.

The apache error_log is showing frequent (1-2 per minute) log entries that

 [warn] (22)Invalid argument: setsockopt: (TCP_NODELAY)

The only thing I could find close to this was an FAQ that says:
Why am I getting "httpd: could not set socket option TCP_NODELAY" in my
error log?
This message almost always indicates that the client disconnected before
Apache reached the point of calling setsockopt() for the connection. It
shouldn't occur for more than about 1% of the requests your server handles,
and it's advisory only in any case.
which isn't really about the same error message and does not appear to
address this problem.

I'm concerned since I suspect this error is associated with a user not being
able to access certain capabilities (JSP applications).

I'd be grateful for any suggestions.


List:     apache-httpd-users
Subject:  [users@httpd] Tcp nodelay error
From:     "Kapil Sharma" <mailinglist () kapils ! net>
Date:     2003-01-14 12:59:53

I am getting lots of errors about TCP_NODELAY. Apache FAQ does describe
the problem and its solution. The problem is its regarding frequently.

[Thu Dec 19 11:49:22 2002] [warn] (22)Invalid argument: setsockopt:
(TCP_NODELAY) [Thu Dec 19 11:51:30 2002] [warn] (22)Invalid argument:
setsockopt: (TCP_NODELAY) [Thu Dec 19 11:51:55 2002] [warn] (22)Invalid
argument: setsockopt: (TCP_NODELAY) [Thu Dec 19 11:53:33 2002] [warn]
(22)Invalid argument: setsockopt: (TCP_NODELAY) [Thu Dec 19 11:54:32
2002] [warn] (22)Invalid argument: setsockopt: (TCP_NODELAY)

Please help


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