Re: Kill signals against single process daemon with Devel::NYTProf::Apache

On Fri, May 20, 2011 at 4:00 AM, Raf <[email protected]> wrote:
>
> On Wed, 18 May 2011, [email protected] wrote:
>
>> I am trying to profile mod-perl processes in a single process httpd
>> with Devel::NYTProf::Apache.  I use the following pattern:
>>
>> * start backgrounded httpd process with start=no (explicitly enabled later
>> in the code)
>> * request url against appropriate port
>> * send TERM signal to apache pid
>> * nytproftohtml the profiled output
>>
>> "Profile data incomplete, inflate error -5 ((null)) at end of input file,
>> perhaps the process didn't exit cleanly or the file has been truncated
>> (refer to T)"
>>
>
> Trying again in the hope that someone might be able to shed light.  It
> appears that END blocks are not being invoked and so I explicitly placed a
> finish_profile() in the DESTROY method of my top level handler - this also
> seems to intmittently fail to be invoked..  At a loss as to why Apache is
> not cleanly shutting down?  It appears that the cleanup phase is being
> skipped and the embedded intrepreter is not being cleanly exited. Has anyone
> witnessed this through nothing other than the injection of
> Devel::NYTProf::Apache (4.06) profiling.

1st recommendation - upgrade your Apache and mod_perl versions, both
are a couple years out of date.

2nd recommendation - search the mailing list archives, I recall
something similar to this that Tim Bunce had encountered while working
on NYTProf.

>
> Apache version: Apache/2.2.3
> mod_perl: 2.0 (Apache2::RequestRec::VERSION - 2.000004)
> interpretter: (64bit 5.8.8)
> Devel::NYTProf: 4.06