Hi,

  We have been using Elog successfully as a shiftlog book for over a month 
now, but I recently ran into an annoying bug, I think.
  We had a thread that was created and was being replied to over several 
days.  We first replied to the original thread and then each subsequent 
reply was a reply of the previous reply.  When the thread reached above 13 
of these, the elogd.exe would crash everytime a user attempted to select 
the logbook that contained the enormous thread.  
  I found the only workaround was to manually delete the offending entry 
from the log file and to instruct my users to not reply to replies unless 
absolutely necessary.  I have been able to replicate this error across the 
rest of my logbooks as well.  If there is any more information you may 
need, please feel free to contact me.

Thanks,
Chris Jones

This is not really a bug, but elogd was getting really slow with our
logbook.  It took about 4 1/2 seconds just to get the default page in
threaded mode with 15 entries.  The logbook has in total about 2000
entries, though.

After playing around with the compiler option '-gp' and gprof the
problem was found: loc() is called about 18000 times per logbook
access!  (Attached you can find the gprof output.  There might be
other places where to save time: e.g. getcfg().)  The function loc()
calls stat every time to check if the language file was updated and
this takes a long time especially over NFS.

The quick solution for me was to just replace loc() with 'char
*loc(char *orig) {return orig;}'.  Therefore, I cannot use the
localization that I used anymore, which is not a big problem at the
moment.  After that the time to download the default page was only
0.16 s; almost a factor of 30 faster!

I would suggest to only read the language file (AND also the config
file!) once upon startup.  After changing things one has to restart
elogd, which is not so nice, but the long delay is not acceptable.
Another option not to restart elogd is to make elogd respond to a
signal (e.g. kill -HUP) to reread the config and language files.

Heya, I've been using elog for a year or so, with a proxy through Apache,
but recently I've ran into some trouble with my Apache config, where
spammers were using my incorrectly configured proxy to send spam.

I have
some requests for the Administrator's Guide: "Running elogd under Apache". 
I'm hoping a few little notes will save others the trouble I've gone
through. Neither of these are any fault of elog's or Apache's, but of my own
ignorance. (I am using elog 2.3.9, and Apache 2.something, if that matters)

1) When doing "ProxyPass ..." when setting up elog under Apache, do NOT put
"ProxyRequests On".  This is not needed, if it is enabled and not set up
correctly, it allows spammers to send spam via Apache's proxy.  More
information on this is here: http://www.apacheweek.com/issues/03-07-25,
about halfway down the page, under "Spammers use open Apache proxies"

Even though it doesn't mention ProxyRequests in the guide, I think there
should be a little side note mentioning that "ProxyRequests On" is NOT
needed, because I put it in, thinking it was - I am probably not the only one.

2) I have found that mod_proxy_http.c must be loaded in addition to
mod_proxy.c and mod_alias.c for the proxy to work, otherwise I get a 403
error.  I think this should be mentioned as well.

Thanks, I added a note into the admin guide.

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To: ELOG@ligo.phys.lsu.edu, user@ligo.phys.lsu.edu
From: elog@ligo.phys.lsu.edu
Subject: New playground elog entry
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Date: Wed, 28 Jan 2004 22:27:03 +52182819
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A new entry has been submitted on ligo.phys.lsu.edu

Logbook             : playground
Author              : Joseph Giaime
Type                : Other
Category            : Other
Subject             : yet another test

Logbook URL         : http://ligo.phys.lsu.edu:8080/playground/13

Maybe consider using the options -W -Wall when compiling elogd.
There are several warning messages.

I am trying to use the Elog Utility to import a few thousand entries. So 
far I have run into a few problems.

a) Cannot get elog utility to speak to elogd on port 8080. Even though I 
use the -p 8080 option with elog. I was able to get it to work when I 
moved my server to port 80.

b) I cannot get elog to work with and attributes or logbooks that contain 
spaces. Please refer the the following example:

elog -v -h scotland.ccs.yorku.ca -p 80 -a "Station Number"="CC001" -a "Mac 
Address"="000874fdc895" -a "Hostname"="cc001.cnscommons.yorku.ca" -a "IP 
Address"="10.6.10.52" -a "Manufacturer"="Dell" -a "Model Line"="Optiplex" -
a "Model Number"="GX270" -a "Monitor Manufacturer"="Dell" -a "Monitor 
Model"="E151FP" -a "Memory"="512MB" -a "CPU Speed"="2.6GHz" -a "Hard 
Drive"="40GB" -a "Service Count"="-" -l WSC2 -u charles xxxxx "DD/MM/YY: 
Change Description"

This line executes fine. Except only Hostname, Manufacturer, Memory and 
text are populated in the record. All the rest of the fields are blank.

c) the only way I was able to get the transaction to work was by reducing 
the size of the log book to a single word (ie WSC2).

Do I have to reduce all my attributes to single words? Or am I missing 
something simple to use as a delimiter for entry??

Thanks in advance

-Charles-

> I am trying to use the Elog Utility to import a few thousand entries. So 
> far I have run into a few problems.
> 
> a) Cannot get elog utility to speak to elogd on port 8080. Even though I 
> use the -p 8080 option with elog. I was able to get it to work when I 
> moved my server to port 80.
> 
> b) I cannot get elog to work with and attributes or logbooks that contain 
> spaces. Please refer the the following example:
> 
> elog -v -h scotland.ccs.yorku.ca -p 80 -a "Station Number"="CC001" -a "Mac 
> Address"="000874fdc895" -a "Hostname"="cc001.cnscommons.yorku.ca" -a "IP 
> Address"="10.6.10.52" -a "Manufacturer"="Dell" -a "Model Line"="Optiplex" -
> a "Model Number"="GX270" -a "Monitor Manufacturer"="Dell" -a "Monitor 
> Model"="E151FP" -a "Memory"="512MB" -a "CPU Speed"="2.6GHz" -a "Hard 
> Drive"="40GB" -a "Service Count"="-" -l WSC2 -u charles xxxxx "DD/MM/YY: 
> Change Description"
> 
> This line executes fine. Except only Hostname, Manufacturer, Memory and 
> text are populated in the record. All the rest of the fields are blank.
> 
> c) the only way I was able to get the transaction to work was by reducing 
> the size of the log book to a single word (ie WSC2).
> 
> Do I have to reduce all my attributes to single words? Or am I missing 
> something simple to use as a delimiter for entry??
> 
> Thanks in advance
> 
> -Charles-

As a followup, this occurs not only in the Linux environment, but also under 
Windows XP. I get the same results...

-Charles-