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icon5.gif   elogd hangs, posted by Alan Grant on Fri Aug 18 05:28:16 2017 
    icon2.gif   Re: elogd hangs, posted by Stefan Ritt on Fri Aug 18 08:59:08 2017 
       icon2.gif   Re: elogd hangs, posted by David Pilgram on Fri Aug 18 12:40:21 2017 
          icon2.gif   Re: elogd hangs, posted by Alan Grant on Fri Aug 18 15:10:15 2017 
          icon2.gif   Re: elogd hangs, posted by Alan Grant on Fri Aug 18 15:15:57 2017 
             icon2.gif   Re: elogd hangs, posted by David Pilgram on Fri Aug 18 21:16:12 2017 
       icon2.gif   Re: elogd hangs, posted by Alan Grant on Fri Aug 18 14:49:42 2017 
          icon2.gif   Re: elogd hangs, posted by Stefan Ritt on Fri Aug 18 16:26:14 2017 
             icon2.gif   Re: elogd hangs, posted by Alan Grant on Fri Aug 18 16:39:21 2017 
Message ID: 68654     Entry time: Fri Aug 18 08:59:08 2017     In reply to: 68653     Reply to this: 68655   68656
Icon: Reply  Author: Stefan Ritt  Author Email: stefan.ritt@psi.ch 
Category: Question  OS: Windows  ELOG Version: 3.1.2 
Subject: Re: elogd hangs 

I have to figure out where elog hangs. I guess it must be some kind of endless loop, triggered by some corrupt data in one of the elog entries. Under linux this is fairly simple (just run elogd under the gdb debugger, wait until it hangs, then press ctrl-c and enter "where" to see a full stack dump where elogd is currently executing). Under Windows this is more difficult, since you need Visual C++ from Microsoft to do the debugging. One thing you can do however without VC is to check if the CPU time is consumed to 100% by elogd, indicating an endless loop.

Stefan

Alan Grant wrote:

I have a very long standing problem with elog over the last few versions where almost daily the service will hang. Cannot even Restart elogd, that just hangs. Clients experience Page not Found. I can only get the service reinitialized by rebooting the VM machine. I have Elog verbose logging On plus a number of external triage monitors running but nothing is yielding clues beyond the precise time the hang occurs. Aside from providing the Config and log files what else can I provide for you to assist, and what other triage measures can you suggest I try? FYI, there can be up to 20 users at one time doing searches (not updates), and I've trimmed the depth of log files that can be searched so that the CPU/service doesn't bog down but that hasn't helped either. Inserts happen in the background using the elog client app (about 2 or 3 inserts per batch at sporadic times).

 

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