I have used links 2.0 for a long time...But a serious problem suddenly occured!
I can't build anything and links are not operated properly.. I can't build, add, modify...all of work. Main menu is appeared, all links are not operated...
Here is an example of my error code.

Building Pages
Pages built on 19-Aug-1999 at 00:07:10
--------------------------------------------------------

Backing up database . . .
Backing up links, category and email database (File::Copy) ...
Done.

Building URL Index . . .

CGI ERROR
==========================================
Error Message : unable to get exclusive lock. Reason: No record locks available
Script Location : /user8/kor3/taedol/web-home/links/cgi-bin/admin/nph-build.cgi
Perl Version : 5.00404

Form Variables
-------------------------------------------

Environment Variables
-------------------------------------------
AUTH_TYPE : Basic
DOCUMENT_ROOT : /WWW/httpd_1.5.2-export/docs
GATEWAY_INTERFACE : CGI/1.1
HTTP_ACCEPT : */*
HTTP_ACCEPT_ENCODING: gzip, deflate
HTTP_ACCEPT_LANGUAGE: ko
HTTP_CONNECTION : Keep-Alive
HTTP_HOST : soback.kornet.net
HTTP_REFERER : http://soback.kornet.net/~taedol/links/cgi-bin/admin/admin.cgi?display=navigation
HTTP_USER_AGENT : Mozilla/4.0 (compatible; MSIE 4.01; Windows 98)
PATH : /opt/SUNWspro/bin:/usr/sbin:/usr/bin:/usr/ucb:/usr/ccs/bin:/sbin:/etc:/usr/openwin/bin:/usr/local:/usr/local/bin:/usr/local/lib:/opt/SUNWcon n/x25/bin:/usr/ucb:.
QUERY_STRING :
REMOTE_ADDR : 210.207.28.150
REMOTE_HOST : 210.207.28.150
REMOTE_USER : taedol
REQUEST_METHOD : GET
SCRIPT_NAME : /~taedol/links/cgi-bin/admin/nph-build.cgi
SERVER_ADMIN : root@soback.kornet.nm.kr
SERVER_NAME : soback.kornet21.net
SERVER_PORT : 80
SERVER_PROTOCOL : HTTP
SERVER_SOFTWARE : NCSA/1.5.2
TZ : ROK


Also visitors should view below message when they click a link.

"Error: Can't find link id: 92"

Help me!

Did you change your server operating system? Or did your ISP?

Looks like you may be on SunOS or Solaris.

I know Solaris 2.7 has a problem with flock, on my system sometimes I can get it to work, sometimes it refuses to run.

ISP operating system is SunOS 5.6....
How can I fix the problem?
My website is seriously troubled with the problem...

Ask your ISP about flock. I belive there were patches for that for 5.4-5.6. Some systems do ok. If that's not the problem, maybe you changed something in the scripts.

There are work-arounds for flock, but they are somewhat implementation specific, so your ISP is the best place to start. See what they do.

I don't have a consistent answer. I have links 2.0 working, but I have problems with a lot of mods. That's one of the reasons I moved to the SQL version -- avoiding flat-file file locking problems.

My ISP says "No problem in cgi.."
I don't know how I cope with this problem.
Please tell me any solution about it...

If your ISP says that flock works, then the problem must lie elsewhere.

Did the program stop working all of a sudden, or after you made a change, or moved to a different ISP? What was the order of the problem?

The program stop working suddenly.
(of course I didn't change or move anything..)
I don't know the reason.
After the accident, I found the data of links.db and url.db was empty.
So I restitute links.db from backup directory, rewrite url.db manually. But my links is not still working.

Help me....!

I solved this problem!
I changed $db_use_flock = 1 into $db_use_flock = 1 in links.cfg...
Then the program works normally.

By the way, I had used flock function for a long time. My ISP says nothing have changed.
I think they change flock works by mistake and don't know what's wrong. It's terrible thing...
Anyway I fix the problem. Thanks for your effors.

But I wonder what are the difference to use and not to use flock function?

Sorry.. I modify upper article.
I changed $db_use_flock = 1 into $db_use_flock = 0 in links.cfg...

your still not getting a lock on your files, its just disabled.
chmod