radium: information in argus.log lost after restart

[carter at qosient.com]

Hey Wolfgang,
Yes, that is a problem!!!!  I will fix it in the next few days!!!  US holiday weekend right now.  Should be trivial to find.  Appending vs. Overwriting is specified when the file is opened, and there only a few points where radium does that!!!

Thanks!!!

Carter

Carter Bullard
QoSient LLC
150 E. 57th Street Suite 12D
New York, New York 10022
+1 212 588-9133 Phone
+1 212 588-9134 Fax  

-----Original Message-----
From: wob at swobspace.de (Wolfgang Barth)
Date: Sun, 18 Feb 2007 14:20:57 
To:Carter Bullard <carter at qosient.com>
Cc:argus-info at lists.andrew.cmu.edu
Subject: Re: [ARGUS] radium: information in argus.log lost after restart

Hi Carter,

> Sounds like radium() is having problems restarting?
> Do you have an messages in /var/log/messages from the radium
> process?  If its being rejected by the remote servers, messages
> will be there.   Radium, if its shutdown properly, will do the right
> thing with its sockets, at least that is the design.
> 
> Radium doesn't have any sense of the data that is in its output file,
> so it can't "throw away old information", but it could possibly corrupt
> the output file, somehow.   If radium is corrupting the file, if you can
> send me a copy of it, or anything like it, I'll be glad to figure out  
> how
> to read it.

I think radium does not append but overwrite data in argus.log. I attached
two files: argus.log.1 is the version before restarting radium. argus.log.2
is the same argus.log some time after restarting radium. The size of
argus.log did not change for some time before growing the normal way.

If you cut the first 1024 bytes from each file, they differ. If radium
would append correctly, it should contain the same information.

dd if=argus.log.1 bs=1k count=1 | ra -r - | less

starts with 2007-02-18 12:20:24.104126 ...

dd if=argus.log.2 bs=1k count=1 | ra -r - | less

starts with 2007-02-18 12:22:48.272104 (the time of restart).

I think radium is overwriting the content from the beginning and did not
append. My logfile shows only information about starting radium (no error,
but also no shutdown).

Wolfgang
-- 
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