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Re: [grouper-users] Random ldappc failures

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  • From: Paul Engle <>
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  • Subject: Re: [grouper-users] Random ldappc failures
  • Date: Fri, 24 Jul 2009 15:55:00 -0500

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- --On Wednesday, July 22, 2009 10:43 AM -0500 Paul Engle

> I cranked up the postgresql logging and do see it making some
> group queries before failing. The log terminates with an
> "unexpected EOF on client connection" error. But up until
> then, the queries all seem similar to the successful run
> just prior. I'll run it to failure again and check to see if
> it's failing on the same select or not (I suspect not,
> though). I should have those results tomorrow, unless it
> obliges me by failing sooner. :)
> In the meantime, I'll start looking at good places to add log
> statements to the code. I was leaving that as a last resort,
> but I think I've reached that point. I'll report back what I
> find.
> -paul

So, here's the latest. The second round of full postresql
logging of the failure did indeed show that it failed on a
different chunk of groups, so I'm ruling out db issues.

Yesterday, I decided to add debugger options to the GSH_JVMARGS
environment variable (specifically "-Xdebug
- -Xrunjdwp:transport=dt_socket,server=y,suspend=n") so that I
could attach a debugger and get some idea of what the program
state is at the time of failure. Since I'm not really that
familiar with the code, I was hoping that would give me some
idea of where to add extra logging. The silly thing has now
been running happily for 27 hours. I'll keep it in debug mode
through the weekend. If it still hasn't died by Monday, then
I'm going to use this as a workaround while I do more testing
on a non-production setup.


- --
Paul D. Engle | Rice University
Sr. Systems Administrator | Information Technology - MS119
(713)348-4702 | PO Box 1892

| Houston, TX 77252-1892
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