Re: [users@httpd] Hung thread

2015-08-17 Thread Dr James Smith
Have you looked at installing apache server status code so you can see what the last request is on each of these hung threads... Alternatively if you have something like mod_perl installed one thing that you can do is add a handler to warn the PID/request to the error logs at the start and end

Re: [users@httpd] Hung thread

2015-08-17 Thread Mark Jacquet
Jeff/Community Getting back to this thread after a long time. We tried many things since this initial issue: Moved to linux, tried latest apache/apr/aprutils bins, tried adjusting the configuration, etc. All this failed eventually in the same way: Multiple hung threads eventually overloading the

Re: [users@httpd] Hung thread

2015-06-18 Thread Mark Jacquet
Yes, Each hung thread shows the exact same back trace. And each was spawned by a request to the same CGI script but with differing arguments. There is an LDAP login requirement for this tool. Not sure if that is interesting as many other tools on this same server require LDAP authentication as w

Re: [users@httpd] Hung thread

2015-06-18 Thread Jeff Trawick
On Wed, Jun 17, 2015 at 8:51 PM, Mark Jacquet < mark_jacq...@yahoo.com.invalid> wrote: > 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

Re: [users@httpd] Hung thread

2015-06-17 Thread Mark Jacquet
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 t

Re: [users@httpd] Hung thread

2015-06-16 Thread 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 b

Re: [users@httpd] Hung thread

2015-06-16 Thread Eric Covener
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 cove...

Re: [users@httpd] Hung thread

2015-06-16 Thread Mark Jacquet
I just did a test and killed off 4 of the 6 processes with multiple threads stuck in the same place.After each kill the "W's" went away (grocs gone from the scoreboard) and the load went down. The good news is that the server stayed up, and seems to be running fine. So do you think this hang is

Re: [users@httpd] Hung thread

2015-06-16 Thread Jeff Trawick
On Jun 16, 2015 18:26, "Mark Jacquet" wrote: > > I am seeing something very odd on our Apache 2.4.12 server (SunOS myhostname 5.10 Generic_118833-36 sun4v sparc SUNW,Sun-Fire-T200) > We are using MPM Worker. > > I have been watching the scoreboard all day monitoring system load and running proces

[users@httpd] Hung thread

2015-06-16 Thread Mark Jacquet
I am seeing something very odd on our Apache 2.4.12 serverĀ  (SunOS myhostname 5.10 Generic_118833-36 sun4v sparc SUNW,Sun-Fire-T200) We are using MPM Worker. I have been watching the scoreboard all day monitoring system load and running processes/threads.Around 10AM the load jumped to from a norm