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ID Date Icondown Author Author Email Category OS ELOG Version Subject
  65746   Mon Feb 18 08:00:44 2008 Reply Stefan Rittstefan.ritt@psi.chBug reportLinux2.7.2 2041Re: elog crashing on startup

Jeff Stoner wrote:

I create 14 of them, one for every 2 letters of the English alphabet and 0-9. The logbook name and Subdir change appropriately. When I start elog, it stays up for about 30 seconds, then crashes. No messages are recorded in syslog nor in the logfile. The only thing that looks suspicious are a couple lines in syslog:

Feb 15 17:11:05 iadopsutil04p elogd[23761]: elogd 2.7.2 built Feb 14 2008, 20:55:38 
Feb 15 17:11:05 iadopsutil04p elogd[23761]: revision 2041
Feb 15 17:11:05 iadopsutil04p elogd[23761]: FCKedit detected
Feb 15 17:11:05 iadopsutil04p elogd[23763]: Cannot restore original GID/UID.
Feb 15 17:11:05 iadopsutil04p elogd[23763]: Cannot remove pidfile "/var/run/elogd.pid" ; Permission denied
Feb 15 17:11:05 iadopsutil04p elogd[23761]: Server listening on port 80 ...

This is obviously the child process responsible for the highlighted lines and it's coming from the cleanup function. Why it's getting called is beyond me.

Ideas?

The error message above come from the PID file /var/run/elogd.pid which cannot be removed. This file is only for information purpose, to tell any script which PID the elogd daemon has. If one elogd crashed in the past, the file might still be there although the program is not running, causing some error to show up, but which can normally be ignored.

The fact that elogd stays for about 30 seconds can only be contributed to the fact that you have very large logbooks, which are scanned during startup. You can check this by starting elogd interactively with the "-v" option. Then you will see the scanning process. The next thing is if you really get a crash, you can produce a core dump, so it can be analyzed to figure out where elogd has crashed. To my knowledge the only way you can do that is by having some logbooks with invalid data. Can you try your set-up with empty logbooks?

- Stefan

  65747   Mon Feb 18 17:25:42 2008 Reply Dan Gawareckidan_gawarecki@datacard.comBug reportWindows Re: error "Cannot retrieve host name: No error" using command line in Windows

Stefan:

Thanks for the analysis and information.  Why am I not surprised that the "No error" came from Windows!? 

I tried some of your suggestions with the following results:

1.  Ping ==>= works as expected on the failing machine; that is, can successfully ping "max13"  I also can ping successfully in the reverse direction; that is, from "max13" to my "client" machine.

2.  NSLookUp ==>does not work on any of the 3 machines.

3.  Added the computer name "max13" to HOSTS file; ==> observed no change in behavior (i.e., still fails)

I did notice that on the 2 machines that function as desired that there is no anti-virus software installed, while on the non-funcational machine there is A-V SW installed.  I am able to bring up eLOG via the browser on the non-functional machine, so am unsure if the A-V SW is a factor; that is, why does ELOG via browser work as expected, but not via command line. 

QUESTION:  does command line ELOG connect differently than ELOG through the browser?

I ask this question for perhaps the A-V SW *is* blocking some port or whatever, and I will need to ask our IT department how to remove such a restriction.

 

  65748   Mon Feb 18 17:51:49 2008 Reply Stefan Rittstefan.ritt@psi.chBug reportWindows Re: error "Cannot retrieve host name: No error" using command line in Windows

Dan Gawarecki wrote:

QUESTION:  does command line ELOG connect differently than ELOG through the browser?

I ask this question for perhaps the A-V SW *is* blocking some port or whatever, and I will need to ask our IT department how to remove such a restriction.

ELOG connects in the same way as the browser, but it is a different program. I have seen some firewalls which explicitly exclude browsers in firewall rules. So it might well be that yours blocks ELOG but not your browser. So give it a try and disable it.

  65749   Mon Feb 18 22:20:02 2008 Reply Dan Gawareckidan_gawarecki@datacard.comBug reportWindows Re: error "Cannot retrieve host name: No error" using command line in Windows

Since both my machine and the Elog server PC are inside my company's "security zone", I am not running a firewall on my machine.

 

For what it's worth:  in trying to research the "No error" message, I did come across this information on MS's website; that is, their statement is:

The gethostbyname function retrieves host information corresponding to a host name from a host database.

 

Note  The gethostbyname function has been deprecated by the introduction of the getaddrinfo function. Developers creating Windows Sockets 2 applications are urged to use the getaddrinfo function instead of gethostbyname.

SOURCE:  http://msdn2.microsoft.com/en-us/library/ms738524.aspx


  65750   Thu Feb 21 08:04:50 2008 Reply Stefan Rittstefan.ritt@psi.chInfoWindowsELOG V2.7.Re: Message ID and trouble ticketing system

Richard Ecclestone wrote:

 

I tried the 'Preset ticket = TCK-#####' method to create unique numbers for our application. This worked very nicely until we replied to a earlier message, if we then create a new message the system creates a sequential number after the last message number we replied to. For example if we have 10 messages. If someone replies to message number #2 then when a new record is created it is then assigned number #3 not #11, thus making a duplicate entry for #3.

 Any ideas?


Yes. If you want this feature to work also for replies, you have to put following into your config file:

Preset ticket = TCK-#####
Preset on reply ticket = TCK-#####
  65753   Thu Feb 21 14:36:32 2008 Reply Stefan Rittstefan.ritt@psi.chQuestionLinux2.7.2.2041Re: elog hand once mirror started

stephane wrote:

Hello,

When I started elogd on the mirror server, I can access to the website on it until cron job started. Once cron job started, the elog mirror server hang and I can't obtain any response on it.

How can I solve this problem ?

With this information I cannot diagnose the problem. I would recommend you to run the elogd on the mirror server in interactive mode with the "-v" flag, so you see all net traffic. Maybe this sheds some light on the problem.

  65754   Thu Feb 21 15:09:25 2008 Reply stephanestephane.brisson@synchrotron-soleil.frQuestionLinux2.7.2.2041Re: elog hand once mirror started

Stefan Ritt wrote:

stephane wrote:

Hello,

When I started elogd on the mirror server, I can access to the website on it until cron job started. Once cron job started, the elog mirror server hang and I can't obtain any response on it.

How can I solve this problem ?

With this information I cannot diagnose the problem. I would recommend you to run the elogd on the mirror server in interactive mode with the "-v" flag, so you see all net traffic. Maybe this sheds some light on the problem.

  Hello,

The server hang at this point :

ID362  : 45F505AF26644D7F71A2AF6E9822554D
Cache  : 45F505AF26644D7F71A2AF6E9822554D
Remote : 45F505AF26644D7F71A2AF6E9822554D
 

I can't stop the process with ctrl+c

 

Kind regards

 

Stéphane

  65755   Thu Feb 21 17:18:55 2008 Reply Stefan Rittstefan.ritt@psi.chQuestionLinux2.7.2.2041Re: elog hand once mirror started

stephane wrote:

 

  Hello,

The server hang at this point :

ID362  : 45F505AF26644D7F71A2AF6E9822554D
Cache  : 45F505AF26644D7F71A2AF6E9822554D
Remote : 45F505AF26644D7F71A2AF6E9822554D
 

I can't stop the process with ctrl+c

No, that does not help me to come to a conclusion. So I have no idea what's going on. When you do mirroring, you can start the synchronization from both server sides. Can you maybe try to do that from the "other" server? Maybe you have some firewall problem.

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