Mailing-List: contact users-help@tomcat.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "Tomcat Users List" <users@tomcat.apache.org>
Received-SPF: neutral (nike.apache.org: local policy)
Message-ID: <4A92AB3C.2030309@christopherschultz.net>
Date: Mon, 24 Aug 2009 11:01:16 -0400
From: Christopher Schultz <chris@christopherschultz.net>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US;
 rv:1.9.1.1) Gecko/20090715 Thunderbird/3.0b3
MIME-Version: 1.0
To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: Clearing the catalina.out file
References: <4A8525D8.128C.0068.0@matc.edu>
 <C61B8FD741FA0D40BFEB50B28DAAB18C5A71AA43C5@34093-MBX-C07.mex07a.mlsrvr.com>
 <680cbe0e0908140713n53c93253r37673d7019106619@mail.gmail.com>
 <4A852C0B.128C.0068.0@matc.edu> <4A8578ED.1010806@christopherschultz.net>
 <4A85372B.128C.0068.0@matc.edu> <4A85817C.1080201@christopherschultz.net>
 <4A853E7D.128C.0068.0@matc.edu> <022d01ca1cff$0384bf30$0a8e3d90$@com>
 <4A8597F0.5050205@christopherschultz.net>
 <027701ca1d0e$f1069ad0$d313d070$@com>
In-Reply-To: <027701ca1d0e$f1069ad0$d313d070$@com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

George,

On 8/14/2009 2:42 PM, George Sexton wrote:
>> Sure it will. Check the "copytruncate" option.
> 
> That's an interesting option. It seems fraught with danger, but I
> tested it and it does work.

Yes, it is fraught with danger. But, if you want to use stdout/stderr
and refuse to take other steps, it's basically what you're left with.

>> What part of that doesn't work?
> 
> The part about new data appearing. On one of my production servers, I
> erased catalina.out.

Note that truncation and deletion are not the same.

> I then invoked a JSP that generated output to
> system.out. The file catalina.out did not magically appear.

Of course not: you're writing to a valid file handle whose directory
entry has been unlinked. Why would the file magically reappear?

> No data
> was magically written to the file. I went into proc for the PID for
> JSVC, and looked at the File Descriptors. Sure enough, if I look in
> the FD directory, FD 1 shows deleted. If I examine the contents of
> the file descriptor, the test data is appended to the end of the
> file.

Sounds right to me.

> It doesn't work.

What you tried doesn't work. I didn't suggest what you tried.

> I make these statements because I know what I
> observe. I've also been using Linux since something like 1997 so I've
> got a fair amount of experience there too.

So, your straw man has a big swingin' tool, too?

> Perhaps we observe different results because I'm using JSVC.

No, we observe different results because we're doing different things.

- -chris
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAkqSqzwACgkQ9CaO5/Lv0PB7YQCfXhUbusH1dEzxDFZmkR25jL4b
ceQAn1OEw4YX7YPCEbxaXuEWdZiEsZL/
=p3xw
-----END PGP SIGNATURE-----

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org