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From Mark Jacquet <>
Subject Re: [users@httpd] Hung thread
Date Thu, 18 Jun 2015 00:51:53 GMT
Just another oddity to add to the issue.
Overnight several more hung threads appeared and the load on the system had jumped into the
mid 20's.After killing these the load did not drop. Looking at the list of running processes
I found httpd's running,spawned from the original root httpd process that *were not even displayed*
in the scoreboard!!  After killing these hidden zombies off the load dropped again.
So now I have to catch and kill two types: Zombies on the scoreboard and hidden zombies.
And this is cute. Some times the zombies hang around so long that when the system gets back
to creating a new process for slot #1, if the zombie was originally in that slot it is displayed
their along with it's brothers for the new process:
e.g. Note process 19597 below

/cgi-bin/rev.cgi?action=105;id=58037 HTTP/1.11-0166310/12/
/cgi-bin/rev.cgi?action=105;id=58051 HTTP/1.12-0137610/12/
/cgi-bin/rev.cgi HTTP/1.12-0-0/0/
/server-status HTTP/1.12-0-0/0/
/cgi-bin/rev.cgi HTTP/1.12-0-0/0/
Slot #2 currently not being used (still has zombie)


     On Tuesday, June 16, 2015 5:42 PM, Mark Jacquet <>

 Upgrade as in Apache upgrade or Solaris 5.10 patch upgrad? :)
Apache is all new of course 2.4.12 with the latest add on sources (apr, pcre, etc)The bad
news is the OS is not at all up to date. And for reasons I have no control over, I cannot
patch.So if this is an OS issue then ......
I seem to be running with the Sun Native LDAP SDK. Would building against  different LDAP
source help? (Open LDAP)?

Long term plan -> moving all Apache servers to Linux

     On Tuesday, June 16, 2015 5:31 PM, Eric Covener <> wrote:

 On Tue, Jun 16, 2015 at 8:23 PM, Mark Jacquet
<> wrote:
> So do you think this hang is related to the native LDAP lib code?

It is possible but IMO not very likely. It has to corrutp memory just
enough to put a looping structure in apr_rmm.  What's your upgrade
history like?

Eric Covener

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